E: Glossary Terms

E

enterprise valueStocks

The total value of a business to all its capital providers: market capitalization plus total debt, preferred stock and minority interest, minus cash and equivalents. Cash is subtracted because an acquirer effectively receives it back. Since the figure is neutral to capital structure, it is the numerator in multiples such as EV/EBITDA that compare firms carrying different debt loads.

execution qualityStocksCrypto

The overall quality of how orders are handled and filled, including price, speed, fill rate, opportunity cost, and market impact. Full guide →

extended-hours tradingStocks

Trading conducted outside a stock exchange's regular session, before the open (premarket) or after the close (after-hours), usually with thinner liquidity. Full guide →

easy to borrowStocks

A classification for a security with ample lendable supply, so a broker can grant a locate routinely and the fee charged is minimal. Brokers publish daily lists of qualifying names. The status is only a snapshot: heavy new short demand or the withdrawal of a large lender can move a security onto the scarce list without notice.

earnings per shareStocks

Net income available to common holders divided by the weighted average number of shares outstanding over the period, with preferred dividends subtracted from income first. The diluted version also counts options, restricted units and convertible securities that would become shares, so it is the lower and more conservative of the two figures companies report. Full guide →

EPS growthStocks

The percentage change in earnings per share over a chosen comparison period, which can be influenced by both profit changes and share-count changes.

earnings qualityStocks

An analytical judgment about how repeatable, cash-backed, and operationally sustainable reported earnings appear to be. Full guide →

economic moatStocks

A durable competitive advantage that may help a business sustain attractive returns against competitors, such as switching costs, scale, network effects, or cost advantages.

earnings surpriseStocks

The difference between a company's reported earnings and the consensus or other reference estimate used before the release. Full guide →

EV/EBITDAStocks

Enterprise value divided by EBITDA, a widely used operating valuation multiple that allows comparison across differing capital structures. Full guide →

EV/EBITStocks

A valuation multiple dividing enterprise value by earnings before interest and taxes. Both the numerator and the denominator are measured before financing effects, so companies carrying different debt loads can be compared directly. Unlike the EBITDA version it leaves depreciation in the denominator, which keeps the cost of maintaining the asset base in view and penalizes capital-heavy businesses. Full guide →

EV/salesStocks

A valuation multiple dividing enterprise value by revenue. Because the numerator includes debt and subtracts cash, it is more comparable across capital structures than a price-based revenue ratio. It is used where profits are negative or temporarily depressed, but a revenue multiple carries no information about margins, so it compares only businesses with similar unit economics.

equity valueStocks

The market value attributable to common shareholders, typically market capitalization for a publicly traded company.

earnings yieldStocks

Earnings per share divided by share price, or net income divided by market capitalization, representing the inverse of a P/E ratio under the same earnings basis. Full guide →

equity risk premium(ERP) StocksCrypto

The expected or realized return of equities above a risk-free reference, estimated using historical, implied, or survey methods.

earnings reportStocks

A company's periodic disclosure of financial results, typically a press release containing the income statement, balance sheet and cash flow statement plus commentary, followed by a regulatory filing. In the United States, listed companies file quarterly on Form 10-Q and annually on Form 10-K, with the release itself furnished to the SEC on Form 8-K. Full guide →

earnings callStocks

A scheduled conference in which a company's executives discuss reported results and outlook, then take questions from analysts. Prepared remarks and the question period are the main source of guidance and of context the press release omits. Regulation FD requires broad access so that material information is not disclosed selectively to a favored group. Full guide →

earnings seasonStocks

The concentrated weeks each quarter when most listed companies report results, beginning shortly after a fiscal period ends and running several weeks. Large banks traditionally report first. Index-level volatility and single-stock dispersion typically rise during the window, and company commentary in aggregate becomes a read on broader demand conditions across the economy. Full guide →

earnings gapStocks

The difference between the previous session's close and the next opening price after a results release, created because the news arrives while continuous trading is closed. The move prints in the opening auction. Whether the opening jump fills, extends or reverses over subsequent sessions is a common subject of study rather than a reliable rule. Full guide →

ex-dividend dateStocks

The date on which a stock begins trading without the right to receive a declared dividend from the seller.

exponential moving averageStocksCrypto

A moving average that weights recent prices more heavily using a smoothing factor of 2 divided by (N plus 1), so each new value is blended with the prior result rather than recomputed from a fixed window. It reacts faster to new information than an equal-weighted line and never fully discards old observations, which decay in influence instead.

Elliott WaveStocksCrypto

A framework proposing that market prices unfold in repeating fractal sequences: five moves in the direction of the larger trend followed by three corrective ones, with each subdividing into the same structure at smaller degrees. Rules constrain which counts are valid, but multiple valid counts usually coexist in real time, so the labeling is interpretive rather than determinate.

evening starStocksCrypto

A three-candle bearish reversal appearing after an advance: a long up period, a small-bodied period at the high showing indecision, then a strong down period closing well into the first body. The sequence traces buying exhaustion followed by sellers taking control. The deeper the third candle closes into the first, the stronger the signal is considered. Full guide →

event-driven tradingStocksCrypto

Positioning around a scheduled or announced corporate or macro event, such as a merger, spin-off, restructuring, index rebalance, or policy decision, where the event itself is expected to reprice the security. The analysis focuses on the probability and timing of an outcome rather than on long-run valuation. Deal breaks, delays, and regulatory intervention are the characteristic risks. Full guide →

earnings tradingStocksCrypto

Taking positions around a company's quarterly results, either before the release to capture the reaction or afterward to trade the follow-through. Implied volatility usually rises into the report and drops sharply once results are public, which affects options positions independently of direction. Gap risk is high, because price can move far past any stop between sessions.

expected shortfall(ES, CVaR) StocksCrypto

The average loss conditional on losses exceeding a chosen VaR threshold, designed to capture tail severity beyond the quantile cutoff.

equal weightStocksCrypto

A construction rule that gives every holding in a portfolio or index the same target allocation, so a small constituent counts as much as a large one. It requires regular rebalancing, since price moves push allocations apart between reviews. Compared with capitalization weighting it tilts toward smaller companies and away from concentration in the largest names, and it typically turns over more.

efficient frontierStocksCrypto

The set of portfolios offering the highest expected return for each level of modeled risk, or lowest risk for each expected return, under mean-variance assumptions.

expiration date(expiry) StocksOptions

The final date on which an option remains valid or can be exercised under its contract terms.

European-style optionStocksOptions

An option that may generally be exercised only at expiration, though it can usually be traded before expiration.

extrinsic value(time value) StocksOptions

The portion of an option premium above intrinsic value, reflecting time, volatility, rates, dividends, supply-demand, and other model inputs.

early assignmentStocksOptions

Assignment of a short American-style option before expiration, often influenced by dividends, interest, borrow conditions, and remaining extrinsic value.

exercise riskStocksOptions

The chance that a short option position is assigned, obliging the seller to deliver or take delivery of the underlying. American-style contracts can be assigned at any time, most often when deep in the money or ahead of a dividend that makes early assignment of a call worthwhile. Assignment converts a defined derivatives position into a share position with different margin and directional exposure.

expected moveStocksOptions

A range estimate for potential price movement over a chosen horizon, often derived from implied volatility or an at-the-money straddle.

electronic communication networkStocks

An automated system that displays and matches customer orders directly against one another, publishing its best bid and offer to the wider market and executing without a dealer taking the other side. These venues emerged in United States equities during the 1990s and narrowed spreads by exposing competing limit orders. Most now operate as registered exchanges or as alternative trading systems.

Ethereum Virtual MachineCrypto

The runtime environment that executes smart contract bytecode on Ethereum, defining the instruction set, the state model, and the gas cost of each operation. Every node runs the same computation and must reach the same result, which is what makes contract execution verifiable. Its wide adoption means many other chains implement a compatible version so contracts can be deployed with little or no change.

emissions yieldCrypto

The return paid to participants such as stakers or liquidity providers that comes from newly issued tokens rather than from fees generated by real usage. Because the payment expands supply, holders who do not participate are diluted, and the advertised rate falls as more capital joins. Separating this component from fee-based yield shows how much of a headline return is funded by inflation.

entity clusteringCrypto

The technique of grouping many blockchain addresses under one presumed owner using heuristics such as common-input ownership within a single transaction, change-address patterns, deposit-address reuse at exchanges, and known labeled sets. It is what turns raw ledger data into metrics about exchanges, miners, and cohorts of holders. Every grouping is an inference, and privacy tools or changed wallet software can break the assumptions.

exchange inflowCrypto

Cryptoassets transferred into addresses attributed to exchanges, sometimes interpreted as potential selling or collateral activity but not proof of intent.

exchange outflowCrypto

Cryptoassets transferred from attributed exchange addresses to external wallets, which can reflect custody changes, withdrawals, transfers, or long-term holding.

exchange netflowCrypto

The difference between the value of an asset moving onto centralized exchange wallets and the value moving off them over a period. Sustained inflow is read as coins being positioned for sale or posted as derivatives collateral, and sustained outflow as movement into custody or self-custody. Internal wallet reshuffles and changes in address labeling can distort the series and produce misleading spikes. Full guide →

exchange reserveCrypto

The amount of a cryptoasset estimated or reported to be held by centralized exchanges, with methodology and address attribution affecting accuracy.

externally owned accountCrypto

An Ethereum account controlled by a private key rather than by contract code, able to initiate transactions and hold a balance but carrying no logic of its own. Every transaction ultimately originates from one of these. The alternative is a contract account, which holds code and storage but can only act when something calls it, and that distinction is what smart contract wallets work around.

exit scamCrypto

A project's operators abandoning it after collecting funds, taking user deposits, treasury assets, or pooled liquidity with them. In crypto it appears as a rug pull where deployers withdraw the liquidity backing a token, as a platform halting withdrawals before disappearing, or as a team vanishing after a token sale. Anonymous teams, unlocked liquidity, and admin keys with unrestricted power over user funds are common precursors.

emotional biasStocksCrypto

Distortion in decision-making driven by feeling or impulse rather than by a flawed reasoning shortcut. Fear, regret, attachment to an existing holding, and the discomfort of admitting a mistake all push choices away from what an investor's own plan specifies. Because the source is affective rather than informational, presenting better data rarely corrects it, so process constraints such as predefined exits, fixed position limits, and written rules are the usual practical response.

endowment effectStocksCrypto

Tendency to value something more highly simply because one owns it, so the price a holder would accept to sell exceeds what the same person would pay to buy the identical item. It is closely linked to loss aversion, since parting with a holding is coded as a loss. In portfolios it shows up as reluctance to trim or replace an existing position, and it can be surfaced by asking whether the position would be bought today at the current price.

equityStocks

Residual claim on an entity's assets after all liabilities are settled. On a balance sheet it equals total assets minus total liabilities, and comprises paid-in capital, retained earnings, and reserves. In markets the word also names the instruments carrying that claim, such as common and preferred stock, and in a brokerage account it means account value net of any margin loan. Across all three uses the common element is what remains once senior claims are paid.

exchangeStocksCrypto

A regulated marketplace that lists securities or contracts and operates rules and systems for matching trades.

EBITDAStocks

Earnings before interest, taxes, depreciation, and amortization, commonly used as a rough operating cash-profit proxy but not a substitute for cash flow. Full guide →

EBIT(earnings before interest and taxes) Stocks

Earnings before interest and taxes, a measure of operating profitability that may differ from reported operating income depending on adjustments.

EBTStocks

Earnings before taxes, also called pretax income, the profit remaining after operating expenses, interest, and other non-operating items but before income tax expense. It sits directly above net income on the income statement, and dividing tax expense by it gives the effective tax rate. Because it strips out differences in tax jurisdiction, credits, and timing, it is used to compare operating and financing performance across companies whose tax positions differ.

EPSStocks

Earnings per share, a company's net income attributable to common shareholders divided by the number of common shares. Basic figures use the weighted average shares outstanding during the period; diluted figures also count shares that would exist if options, restricted units, and convertible instruments were exercised or converted, which lowers the result. Preferred dividends are subtracted from net income first. Because the denominator moves with issuance and buybacks, the measure can change while total profit does not. Full guide →

ERPStocks

Equity risk premium, the additional return investors require for holding equities rather than an asset treated as the risk-free benchmark, typically a government bond. It is a core input to the cost of equity in the capital asset pricing model, where cost of equity equals that benchmark rate plus beta multiplied by this premium. It cannot be observed directly and is estimated either from long-run historical return differences or by solving for the return implied by current prices and expected cash flows.

earningsStocks

Profit a company reports for a period, most often net income, and by extension the scheduled release in which those results are published. The release combines the income statement, balance sheet, and cash flow statement with management commentary and frequently forward guidance. Reported figures follow accounting standards, while companies often also present adjusted measures excluding items they consider non-recurring, so the two can differ substantially and are not interchangeable. Full guide →

EDGAR(Electronic Data Gathering, Analysis, and Retrieval system) Stocks

The SEC's free, official electronic system for collecting and publishing the filings public companies, funds, and individuals are required to submit, including 10-Ks, 10-Qs, 8-Ks, proxy statements, and ownership filings. Full guide →

EMAStocksCrypto

Exponential moving average, a weighted average in which each new price is combined with the prior average using a smoothing factor, commonly two divided by the window length plus one. Weight decays geometrically into the past, so no observation is ever fully discarded but old ones matter progressively less. Compared with a simple moving average of the same length it responds faster to recent price changes, reducing lag and increasing sensitivity to noise.

entryStocks

The transaction that opens a position, and by extension the rules governing when and at what price it occurs. It specifies the order type used, the price or condition that starts it, and the size, which follows from the distance to the planned exit and the capital being risked. Because the entry price sets the reference for both the stop distance and any reward measurement, it fixes the risk profile of everything that follows.

exitStocks

The transaction that closes a position, whether at a loss, at a target, or on a change in the reason for holding. Exit rules typically define a stop level at which the idea is considered wrong, a target or trailing method for taking profit, and a time or event condition. Because a result is fixed at the exit rather than at the entry, exit rules determine the distribution of outcomes that any given entry method actually produces.

edgeStocksCrypto

A repeatable expected advantage after realistic costs, errors, and risk, supported by evidence rather than a single profitable outcome.

expectancyStocksCrypto

The average expected profit or loss per trade based on outcome probabilities and average gains and losses, before considering uncertainty and capacity.

expirationStocksOptions

Date and time at which an option or futures contract ceases to exist, after which any unexercised rights lapse. For listed United States equity options, contracts finishing in the money by a defined threshold are generally exercised automatically by the clearing house unless the holder instructs otherwise. As expiration approaches, extrinsic value decays toward zero and the rate of decay accelerates, while delta moves toward one or zero depending on whether the option is in or out of the money.

exerciseStocksOptions

The act of using an option's contractual right to buy or sell the underlying asset at the strike price.

ECN(Electronic Communication Network) StocksCrypto

An electronic communication network that automatically matches buy and sell orders according to its rules and provides electronic access to liquidity.

expansionStocksCrypto

Trader shorthand for a sharp increase in range, volatility, or directional movement after a quieter phase.

EtherCrypto

Native asset of the Ethereum network, used to pay for computation and storage on the chain and to secure it through staking. Transaction fees are denominated in it, with a base fee that is destroyed and a priority fee paid to the block proposer, so net issuance depends on how busy the network is. Validators post it as stake and earn issuance and fees for proposing and attesting to blocks. Its smallest indivisible unit is the wei.

ETHCrypto

Ticker symbol for ether, the native asset of the Ethereum network, used to pay transaction fees and to stake for network security. Amounts are quoted in ether but computed in wei, and gas prices are commonly expressed in gwei, which is one billionth of one ether. The same three letters are used in United States equity market data as shorthand for extended trading hours, so context determines which meaning applies.

EthereumCrypto

Public blockchain network with a built-in virtual machine, so accounts can hold programs called smart contracts whose code executes when a transaction calls it. State is shared and replicated across nodes, and every operation consumes gas paid in the network's native asset. It uses proof-of-stake consensus, in which validators post stake, propose and attest to blocks, and forfeit part of that stake for provable misbehavior. Its account model and token standards became the template for much of the wider ecosystem.

EVMCrypto

Ethereum Virtual Machine, the stack-based execution environment that runs smart contract bytecode on Ethereum and on the many chains that copy its interface. Every node executes the same instructions against the same state, so results are deterministic and independently verifiable. Each operation costs a set amount of gas paid by the sender, which bounds computation and prices scarce block space. Chains described as EVM compatible accept the same bytecode and developer tooling.

ERC-20(ERC20) Crypto

The dominant Ethereum interface standard for fungible tokens, defining functions such as transfers, balances, total supply, and allowances.

ERC-721(ERC721) Crypto

An Ethereum token standard for non-fungible tokens where each token ID can represent a distinct asset or record.

ERC-1155(ERC1155) Crypto

An Ethereum multi-token standard that can represent fungible, non-fungible, and semi-fungible token IDs within one contract.

emissionCrypto

New token units released by a protocol over time, typically as mining rewards, staking rewards, or liquidity-mining incentives. The emission schedule sets how many units enter circulation each block or epoch and whether that rate decays, stays flat, or continues indefinitely. Emissions dilute existing holders unless demand absorbs the new supply, so comparing the emission rate against burns and against protocol fee revenue is central to tokenomics analysis.

exploitCrypto

A technique or transaction sequence that abuses a vulnerability, flawed assumption, or unintended behavior to gain unauthorized value or control.

Event ClockStocksCrypto

A timestamped sequence that separates pre-event information, announcement, first tradable reaction, post-event confirmation, and strategy exit windows, used to reduce look-ahead and hindsight bias in event-driven research.

Earnings Call and GuidanceStocks

A conference call, typically held quarterly, where company management discusses financial results and often provides guidance: its own forward-looking estimate for future revenue or earnings.

Emissions (Crypto)Crypto

New tokens distributed by a protocol over time (through mining rewards, staking rewards, or incentive programs) that add to circulating and total supply. Full guide →

EPS (Earnings Per Share)Stocks

A company's net income divided by its shares outstanding, showing profit on a per-share basis; it can be reported on a basic or diluted share count. Full guide →

ETF (Exchange-Traded Fund)StocksCrypto

A fund that holds a basket of assets and trades on an exchange like a stock, typically tracking an index, sector, or strategy.

Exchange and Custody Risk (Crypto)Crypto

The risk that a crypto exchange, lender, or other custodian fails, freezes withdrawals, mismanages funds, or is compromised, exposing depositors to loss regardless of the asset's own market performance. Full guide →

Eclipse AttackCrypto

A network attack that isolates a node by controlling or manipulating most of its peer connections, potentially distorting its view of blockchain activity.

Economic FinalityCrypto

A concept where reverting finalized history would require destroying or risking so much economic value that reversal becomes prohibitively costly.

EIP-2612Crypto

An ERC-20 extension enabling token allowances to be set through signed permit messages rather than a standalone approval transaction.

EIP-712Crypto

An Ethereum standard for typed structured-data signing intended to make off-chain signatures more understandable and domain-separated.

EntryPointCrypto

The core ERC-4337 contract that validates and executes batches of user operations submitted by bundlers.

EpochCrypto

A group of consecutive slots or blocks used by some proof-of-stake protocols to organize validator assignments, rewards, and finality.

ERC-4337Crypto

An Ethereum account-abstraction standard using user operations, bundlers, entry-point contracts, and paymasters without changing the base consensus protocol.

Ether (ETH)(ETH, ether) Crypto

The native asset of Ethereum, used to pay transaction fees, stake for consensus, and transfer value.

Ethereum Virtual Machine (EVM)(EVM) Crypto

The execution environment used by Ethereum smart contracts and replicated by many compatible networks.

EVM-CompatibleCrypto

A blockchain or execution environment designed to support Ethereum-style bytecode, tools, accounts, and smart contracts with varying degrees of compatibility.

Execution ClientCrypto

On Ethereum, software responsible for executing transactions, maintaining execution state, and exposing execution-layer APIs.

Execution LayerCrypto

The part of Ethereum responsible for transactions, smart contracts, account state, and the EVM.

Execution PayloadCrypto

The execution-layer block data carried within a consensus-layer block after Ethereum's Merge.

Exit QueueCrypto

The waiting line for validators seeking to leave active consensus participation when protocol churn limits restrict exit speed.

Externally Owned Account (EOA)(EOA) Crypto

A traditional Ethereum account controlled by a private key rather than by smart-contract code.

Ecosystem IncentivesCrypto

Token emissions or treasury distributions used to reward behaviors intended to grow usage, liquidity, development, or integrations.

Elastic-Supply TokenCrypto

A token whose circulating unit count changes algorithmically in response to specified conditions such as price or demand targets.

Emergency Pause(pause guardian) Crypto

A privileged protocol function used to halt selected operations during a suspected exploit or severe malfunction.

Emission RateCrypto

The quantity or percentage of new tokens issued over a specified period.

ERC-1400(ERC1400) Crypto

A family of proposed security-token standards for representing regulated securities and transfer restrictions on Ethereum-like networks.

ERC-4626(ERC4626, tokenized vault standard) Crypto

An Ethereum standard for tokenized yield-bearing vaults that defines a common interface for depositing, withdrawing, and accounting for shares.

ERC-777(ERC777) Crypto

An Ethereum fungible-token standard designed with richer transfer hooks than ERC-20, though it is far less widely adopted.

Exchange Rate TokenCrypto

A yield-bearing token whose wallet unit balance remains stable while the redeemable amount of underlying assets per token increases over time.

Entity-Adjusted MetricCrypto

An on-chain measure that clusters multiple addresses believed to belong to the same entity before calculating activity.

Estimated Leverage Ratio(ELR) Crypto

A market-wide leverage proxy often calculated from open interest relative to exchange reserves or another collateral measure, not a direct account-level leverage reading.

European Crypto OptionCrypto

A crypto option exercisable only at expiration, common on institutional crypto-options venues.

Exchange BasisCrypto

A price difference for the same or related crypto instrument across trading venues due to funding, liquidity, access, or counterparty differences.

Exchange Netflow RatioCrypto

A normalized comparison of net exchange transfers with another quantity such as reserves, supply, or market capitalization.

Exchange Reserve ChangeCrypto

The increase or decrease in crypto balances held by addresses attributed to centralized exchanges over a period.

Exchange Supply RatioCrypto

The share of circulating supply estimated to be held on exchanges, subject to address-labeling and custody-methodology limitations.

Exchange Whale RatioCrypto

A provider-defined metric comparing large exchange deposits with total deposits to estimate the influence of large holders.

Entity AttributionCrypto

The process of linking blockchain addresses to real-world or protocol entities using transaction heuristics, public disclosures, and other evidence.

ETH/BTCCrypto

The exchange rate of ether priced in bitcoin, often used to compare Ethereum's relative performance with Bitcoin.

Exchange Counterparty RiskCrypto

The risk of loss from insolvency, fraud, freezes, hacks, legal action, or operational failure at a centralized trading venue.

Exchange MaintenanceCrypto

A scheduled or unscheduled period when an exchange disables selected functions for upgrades, repairs, wallet changes, or risk controls.

Exchange OutageCrypto

A period when a centralized exchange's trading, login, deposits, withdrawals, APIs, or matching engine are unavailable or materially degraded.

Executable ProposalCrypto

A governance proposal containing on-chain actions that can be automatically executed after approval and any timelock.

Exit LiquidityCrypto

Slang for later buyers whose purchases allow earlier holders to sell large positions, often used critically in speculative token markets.

Efficiency Mode(e-mode) Crypto

A lending configuration that raises borrowing efficiency for closely correlated collateral and borrowed assets while imposing narrower asset constraints.

Exact-In SwapCrypto

A swap specifying the exact input amount while allowing output to vary subject to a minimum received amount.

Exact-Out SwapCrypto

A swap specifying the desired output amount while allowing input to vary up to a defined maximum.

EBITDA MarginStocks

EBITDA divided by revenue, used to compare operating profitability before capital structure and noncash depreciation or amortization. Full guide →

Effective Tax RateStocks

Income-tax expense divided by pretax income, subject to distortions from discrete items, losses, and jurisdictional mix.

Enterprise Value (EV)(EV) Stocks

A valuation measure approximating the market value of the operating business across equity and debt capital, commonly calculated from market cap plus net debt and selected adjustments.

Estimate DispersionStocks

The degree of disagreement among analysts' forecasts for the same metric and period, often measured by range or standard deviation. Full guide →

Estimate RevisionStocks

A change in an analyst's forecast for a company's future earnings, revenue, or other metric after new information or reassessment.

EV/Revenue(EV/Sales) Stocks

Enterprise value divided by revenue, often used for companies where earnings or cash flow are low, negative, or not yet mature. Full guide →

Exit Multiple MethodStocks

A terminal-value approach that applies a selected valuation multiple to a forecast financial metric at the end of the explicit projection period. Full guide →

Economic SecurityCrypto

The amount and structure of stake, rewards, penalties, and attacker costs intended to discourage invalid behavior in a protocol.

Encrypted MempoolCrypto

A design that hides transaction contents or ordering-relevant information until a later stage to reduce frontrunning and certain forms of MEV.

Enshrined RollupCrypto

A proposed rollup design where more rollup functionality is integrated directly into the base protocol rather than implemented only by external smart contracts.

Event LogCrypto

Structured data emitted by a smart contract during execution and stored in transaction receipts for applications and indexers to query.

Exclusive OrderflowCrypto

Order flow sent to a restricted set of executors or market makers before or instead of open public routing.

External VerificationCrypto

Cross-chain security based on an independent committee, validator set, oracle, or network distinct from the connected chains' native consensus.

Effective SpreadStocksCrypto

An execution-quality measure comparing a trade price with the prevailing midpoint, usually doubled to express the round-trip spread cost.

Extended Trading Hours (ETH)(ETH) StocksCrypto

Trading sessions outside the primary regular session, including pre-market and after-hours periods where venue and broker rules can differ.

Earnings Implied MoveStocksOptions

The option market's approximate priced-in move around an earnings event, commonly inferred from near-dated option premiums.

Earnings VolatilityStocksOptions

The elevated expected or realized price variability surrounding a company's earnings announcement.

Event VolatilityStocksOptions

The portion of option-implied volatility associated with a discrete event such as earnings, an FDA decision, court ruling, election, or product announcement.

Exercise-by-ExceptionStocksOptions

The clearing process that automatically exercises expiring options meeting a specified in-the-money threshold unless the holder gives contrary instructions.

Expiration CycleStocksOptions

The schedule of months or dates on which a class of options offers expirations, including standard monthly, weekly, quarterly, or longer-dated contracts.

Easy-to-Borrow (ETB)(ETB) StocksCrypto

A security generally available for short-sale borrowing without special locate fees or scarcity under a broker's inventory system.

Economic SignificanceStocksCrypto

Whether a strategy effect is large enough in practical money terms to matter after costs and constraints, regardless of statistical significance.

Effect SizeStocksCrypto

The magnitude of an observed relationship or difference, considered separately from whether it is statistically significant.

Effective Number of HoldingsStocksCrypto

A diversification measure often calculated as the inverse of the sum of squared portfolio weights, showing how many equal-sized positions would create comparable concentration.

Elastic NetStocksCrypto

A regression regularization method combining L1 and L2 penalties to balance sparsity and coefficient shrinkage.

Embargo PeriodStocksCrypto

A buffer interval excluded after a validation segment in time-series cross-validation to reduce leakage from overlapping labels or nearby information.

Engle-Granger TestStocksCrypto

A two-step procedure for testing cointegration between time series by estimating a long-run relationship and testing residuals for a unit root.

Ensemble ModelStocksCrypto

A model combining outputs from multiple component models to improve stability or prediction quality.

Equal Risk Contribution (ERC)(ERC) StocksCrypto

A portfolio allocation in which each position is designed to contribute approximately the same amount to total portfolio volatility.

Equal WeightingStocksCrypto

Assigning the same portfolio weight to each selected holding regardless of market capitalization, volatility, or expected return.

Estimation ErrorStocksCrypto

The difference between estimated inputs such as expected return, volatility, beta, or correlation and their unknown true values.

Event RiskStocksCrypto

The possibility of a sharp repricing around earnings, economic releases, legal decisions, regulatory actions, corporate events, or other discrete catalysts.

Event-Driven BacktestStocksCrypto

A simulation architecture processing market events, orders, fills, and portfolio state sequentially to mimic real trading logic.

Excess ReturnStocksCrypto

Return above a chosen reference such as the risk-free rate, benchmark, or hurdle rate.

Exchange FeeStocksCrypto

A fee charged by a trading venue or exchange for transactions, market access, clearing, or related services.

Expanding WindowStocksCrypto

A historical sample that grows through time by adding new observations while retaining all earlier data.

Economic InterestStocks

The portion of a security holder's exposure to profits, losses, distributions, and asset value, which can differ from voting control.

Employee Stock Option(ESO) StocksOptions

A compensation contract giving an employee the right to buy company shares at a specified exercise price subject to vesting and expiration terms.

Employee Stock Purchase Plan (ESPP)(ESPP) Stocks

A company plan allowing eligible employees to purchase employer stock, often through payroll deductions and sometimes at a discount.

Equity SecurityStocks

A security representing an ownership interest or a right to acquire ownership, such as common stock, preferred stock, or certain warrants and convertibles.

Exchange OfferStocks

An offer allowing security holders to exchange one security for another under specified terms, often in restructurings or corporate separations.

Ease of Movement (EOM)(EOM) StocksCrypto

An indicator combining price range and volume to estimate how easily price moves through the market.

Elder-Ray Index(Elder Ray) StocksCrypto

A technical indicator using a moving average plus bull power and bear power measures to estimate buying and selling pressure.

EquilibriumStocksCrypto

A reference area where buying and selling pressures are considered more balanced; some trader frameworks use the midpoint of a range as a practical proxy.

ExhaustionStocksCrypto

A condition in which aggressive buying or selling participation weakens after an extended move, potentially reducing the force behind continuation.

Equity REITStocks

An equity REIT is a real estate investment trust that owns and typically operates income-producing physical properties (such as apartments, offices, shopping centers, or warehouses), earning revenue mainly from tenant rent rather than from mortgage interest. Equity REITs make up the large majority of the REIT market, and their returns come from a combination of dividend income and property value appreciation. This distinguishes them from mortgage REITs, which earn income from financing real estate rather than owning it directly.

Early ExerciseOptionsStocks

Exercising an option before its expiration date rather than holding or selling it, most often done by call holders just before an ex-dividend date to capture the dividend, or by put holders on deep in-the-money positions to capture the full intrinsic value and interest on proceeds sooner. Full guide →

Exercise Style(Option Exercise Style) Options

The contractual rule governing when an option can be exercised: American-style options can be exercised any time up to expiration, while European-style options can only be exercised at expiration. Full guide →

employment cost index(ECI) StocksCryptoOptionsFutures

A quarterly BLS measure of the change in total labor costs to employers (wages, salaries, and benefits) for a fixed basket of jobs, designed to strip out the effect of workers shifting between occupations and industries; because it captures benefits costs that average hourly earnings misses, the Fed treats it as one of the cleanest gauges of underlying wage and compensation inflation. Full guide →

Exposure at Default(EAD) StocksFutures

The estimated amount a lender or counterparty is exposed to at the moment a borrower or trading partner defaults, used with probability of default and loss given default to estimate expected credit losses.

Exotic DerivativeStocksOptions

A derivative with non-standard features, such as path dependence, multiple underlying assets, or embedded barriers and triggers, that make it more complex to price and hedge than a plain vanilla contract.

Extreme Value Theory(EVT) StocksOptionsFuturesCrypto

A branch of statistics focused on modeling the tail behavior of a distribution, used in risk management to estimate the probability and size of rare, extreme losses beyond what normal-distribution models capture.

Exchange for Physical(EFP) Futures

A privately negotiated transaction in which one party simultaneously exchanges a futures position for a corresponding position in the physical underlying commodity or instrument with the same counterparty, executed off the central order book and reported to the exchange under its EFRP rules.

Exchange for Related Position(EFRP) Futures

The exchange rule category covering privately negotiated, off-order-book transactions that pair a futures (or options) position with an economically related cash, forward, swap, or OTC position between two parties, including exchange-for-physical and exchange-for-swap trades.

E-mini FuturesFutures

A class of electronically traded futures contracts sized at a fraction of a corresponding standard futures contract (commonly one-fifth), introduced by CME Group to lower the capital required to trade index and other benchmark futures.

Executing BrokerStocks

The broker-dealer that carries out a trade in the market on a client's behalf, as distinct from the clearing broker that holds the client's account, settles the trade, and takes custody of the resulting assets.

Expense Ratio(total expense ratio, TER, management expense ratio, MER) Stocks

The annual percentage of a fund's average net assets deducted to cover management fees and operating costs, expressed as a single number and taken directly out of fund returns rather than billed separately. Full guide →

ETF Premium to NAV(ETF discount to NAV) Stocks

The percentage difference between an ETF's market price and its net asset value, which the creation and redemption mechanism keeps small under normal conditions by giving authorized participants an arbitrage incentive to correct any gap.

Exchange-Traded Note(ETN) Stocks

An unsecured debt obligation issued by a bank that promises to pay a return linked to a specified index or benchmark, trading on an exchange like an ETF but carrying the issuing bank's credit risk instead of holding underlying assets.

ERISA(Employee Retirement Income Security Act) Stocks

The 1974 federal law that sets minimum standards for most voluntarily established employer retirement and health plans, covering fiduciary responsibility, disclosure, funding, and participant rights. Plans subject to ERISA must be run in the exclusive interest of participants, and fiduciaries who breach that duty can be held personally liable, though ERISA generally does not cover government or church plans.

Exhaustion GapStocksCrypto

A gap that occurs near the end of an extended trend, often on a final volume spike, as the last buyers (in an uptrend) or sellers (in a downtrend) rush in before the move reverses.

Ease of Movement(EMV, EOM) StocksCrypto

A volume-based oscillator that measures how easily price moves for a given amount of volume, rising when price advances on light volume and falling when price declines on light volume. Full guide →

Elder Impulse SystemStocksCrypto

A trading system developed by Alexander Elder that color-codes price bars based on the combined direction of a 13-period EMA and the MACD histogram, flagging bars where both trend and momentum align (green or red) versus bars where they disagree (blue). Full guide →

Equivolume Chart(Candlevolume Chart) StocksCrypto

A chart style that plots each period's price range on the vertical axis as usual, but varies the width of each bar based on that period's trading volume, so wide, tall boxes represent high-volume, high-range moves. Full guide →

EIP-1559(Ethereum fee market reform) Crypto

The Ethereum upgrade that replaced simple first-price gas auctions with a base fee that adjusts automatically each block based on demand and is burned, plus an optional priority fee (tip) paid to validators to prioritize a transaction.

emergency shutdown(global settlement) CryptoDeFi

A last-resort mechanism, usually triggered by governance vote, that halts a protocol's normal operations and initiates an orderly wind-down process, letting users claim the net value of their collateral or debt positions directly rather than through the market.

emission schedule(token emission schedule, emissions schedule) Crypto

The protocol-defined plan for how new tokens enter circulation over time, specifying the rate, the recipients (miners, validators, liquidity providers, or a treasury), and any step-downs such as a halving. It determines how much fresh supply the market must absorb in each period. Comparing scheduled issuance against demand and against protocol revenue is a core part of assessing supply pressure on a token. Full guide →

Excess IRA Contribution(Excess Contribution) Stocks

A contribution to an IRA that exceeds the annual limit for that account type and the contributor’s eligibility, which the IRS taxes at 6% per year for every year it remains in the account unless it is withdrawn (along with any earnings) by the tax-filing deadline.

Estimated Tax PaymentStocksCrypto

A quarterly payment of income tax an individual makes directly to the IRS on income not subject to withholding (such as capital gains, dividends, interest, or self-employment income) to avoid an underpayment penalty at filing time.

EasementStocks

An easement is a legal right allowing someone other than the property owner to use a defined portion of the land for a specific purpose, such as a utility line, shared driveway, or public trail, without transferring ownership. Easements typically run with the land, meaning they bind future owners, so they can restrict how a parcel is developed or used and should be identified during a title search before purchase.

En Primeur(wine futures) Stocks

A system, centered on Bordeaux, in which wine is sold to buyers while still aging in barrel (typically in the spring following harvest), with physical delivery of the bottled wine following roughly 18 to 24 months later. En primeur lets châteaux raise cash before bottling and gives buyers a chance to secure allocations early, but the buyer takes on the risk that the finished wine's market price could fall below what was paid before bottling.

Energy CommodityStocksFutures

A hard commodity used primarily as fuel or power input, including crude oil, natural gas, gasoline, and heating oil, traded on organized futures exchanges. Energy commodity prices are especially sensitive to geopolitical events, OPEC+ production decisions, and seasonal demand swings (heating and driving seasons).

Exploration and Production(E&P) Stocks

The upstream business of searching for oil and gas reserves and extracting them from the ground, encompassing seismic surveying, drilling, well completion, and ongoing production operations. "E&P company" is the standard industry label for a pure upstream producer, as distinct from integrated majors that also operate midstream and downstream segments.

E&P(exploration and production) Stocks

The standard industry abbreviation for "exploration and production," used to describe upstream oil and gas companies and their operations. "E&P spending" or "E&P company" are common shorthand in energy-sector financial reporting and analyst coverage.

Energy ETFStocks

An exchange-traded fund holding a basket of energy-sector stocks (spanning upstream, midstream, downstream, and/or renewable energy companies), providing diversified sector exposure in a single, liquid instrument. Sector-specific energy ETFs range from broad integrated-major funds to niche funds focused on E&P, MLPs, or clean energy.

Energy Storage(battery storage) Stocks

Technology and infrastructure (chiefly grid-scale batteries, but also pumped hydro and other methods) that stores electricity for later use, increasingly critical for balancing intermittent renewable generation like solar and wind. Energy storage is an investment theme spanning battery manufacturers, grid-scale project developers, and utilities deploying storage alongside renewable capacity.

employer matchStocks

A contribution an employer makes to an employee's retirement account tied to the employee's own contribution rate, commonly expressed as a percentage match up to a cap, such as 50 cents per dollar on the first 6% of pay deferred. Employer match dollars may be subject to a vesting schedule, and contributing less than the amount needed to capture the full match is often described as leaving free money on the table.

elective deferralStocks

The portion of an employee's salary that is voluntarily contributed to an employer-sponsored retirement plan, such as a 401(k), 403(b), or 457(b), instead of being paid out as cash, made through pre-tax, Roth, or a combination of both under the employee's own election. Elective deferrals are subject to an annual IRS dollar limit set per individual across most employer plan types, separate from any employer contributions.

ERISA fiduciaryStocks

Anyone who exercises discretionary control or authority over a retirement plan's management or assets, or who provides investment advice for compensation, and who is therefore legally bound by ERISA's duties of loyalty and prudence to act solely in participants' interests. ERISA fiduciaries can be held personally liable for losses caused by breaching these duties, such as selecting excessively expensive investment options or failing to monitor plan fees.

early withdrawalStocks

A distribution taken from a retirement account before the age, generally 59½, at which the IRS considers withdrawals penalty-free, subject to ordinary income tax plus a 10% additional tax unless a specific statutory exception applies, such as first-time home purchase, higher education expenses, disability, or substantially equal periodic payments. The rules and exceptions differ somewhat between IRAs and employer plans, and some exceptions apply to one account type but not the other.

exclusion ratioStocks

The formula used to determine what portion of each nonqualified annuity payment is a tax-free return of the owner's after-tax premium versus taxable earnings, calculated by dividing the total investment in the contract by the total expected return over the payout period. Once the owner's original premium has been fully recovered tax-free, for example by outliving their life expectancy under a life annuity, 100% of subsequent payments become taxable.

Education Savings Account(Coverdell ESA, Coverdell Education Savings Account) Stocks

A tax-advantaged account, formally the Coverdell Education Savings Account, that allows after-tax contributions, capped at $2,000 per beneficiary per year, to grow tax-deferred and be withdrawn tax-free for qualified elementary, secondary, or higher-education expenses. Contributions must stop once the beneficiary turns 18, absent special-needs exceptions, and eligibility to contribute phases out at relatively low income levels compared with 529 plans, which has made ESAs far less commonly used than 529s.

estateStocks

The total of everything a person owns at death, including real property, investment and bank accounts (except those with valid beneficiary or joint-ownership designations that pass outside it), personal property, and debts, that is administered and distributed according to the person's will or, absent a will, state intestacy law. "Gross estate" and "probate estate" are related but distinct concepts: the gross estate, used for estate tax purposes, includes assets like life insurance and retirement accounts that may bypass the probate estate entirely.

estate taxStocks

A federal, and in some states additional state-level, tax on the transfer of a deceased person's estate above a specified exemption amount, calculated on the estate's total value before distribution to heirs, distinct from an inheritance tax, which some states impose on the recipient instead. The federal exemption is unified with the lifetime gift tax exemption, is indexed for inflation, and is portable between spouses, meaning a surviving spouse can generally use any unused portion of the first spouse's exemption.

early withdrawal penaltyStocks

An early withdrawal penalty is a fee charged when a depositor takes money out of a certificate of deposit before its maturity date, typically calculated as a forfeiture of a specified number of months' worth of interest, with longer-term CDs generally carrying steeper penalties. The penalty is deducted from the account balance and, in some cases, can eat into the original principal if too little interest has accrued to cover it. Banks disclose the exact penalty terms at account opening, and the fee is separate from any tax penalty that may apply to early withdrawals from tax-advantaged retirement accounts.

equity crowdfunding(crowdfund investing) Stocks

Raising capital by selling small equity stakes in a private company to a large number of investors, typically through an online funding portal, under SEC exemptions such as Regulation Crowdfunding or Regulation A. Equity crowdfunding opened startup investing to non-accredited retail investors for the first time when Title III of the JOBS Act took effect in 2016.

event driven(event-driven strategy) Stocks

A hedge fund strategy that seeks to profit from price movements tied to specific corporate events, such as mergers, acquisitions, spinoffs, bankruptcies, or restructurings. Common event-driven substrategies include merger arbitrage, which bets on the spread between a target's trading price and the announced deal price, and distressed investing.

ESG(Environmental, Social, and Governance) Stocks

A framework that scores companies on environmental impact, social practices, and governance quality alongside traditional financial metrics. Investors and fund managers use ESG data to screen holdings, tilt portfolios, or engage with management, though scoring methodologies vary significantly across rating providers (MSCI, Sustainalytics, S&P Global) and are not standardized by regulation.

Environmental (ESG)(environmental factor, E in ESG) Stocks

The 'E' in ESG, covering a company's impact on the natural world: carbon emissions, energy and water use, waste management, pollution, and exposure to climate-transition risk. Analysts assess environmental factors both for regulatory/reputational risk to the company and for the company's contribution to broader environmental outcomes.

Exclusionary Screening(negative screening) Stocks

An ESG methodology that removes companies or entire industries from the investable universe based on specific criteria (commonly tobacco, weapons, fossil fuels, or gambling) before any other portfolio construction happens. It is the oldest and simplest form of ESG implementation and the primary mechanism behind SRI funds.

Equity Fund(stock fund) Stocks

A mutual fund or ETF that invests primarily in stocks rather than bonds or cash equivalents, spanning styles from broad market-index funds to concentrated sector or growth/value strategies. Equity funds carry higher expected volatility than bond or balanced funds but historically have offered higher long-run returns.

Environmental ReturnStocks

The non-financial, ecological benefit an impact investment generates (such as tons of carbon emissions avoided, acres of habitat conserved, or gallons of water saved), measured and reported alongside financial return. Environmental return is typically reported using standardized metrics (e.g., the GIIN's IRIS+ framework) so investors can compare environmental outcomes across different investments and asset classes.

Exotic Pair(Exotic Currency Pair) Stocks

An exotic pair pairs a major currency with the currency of a developing or smaller economy, such as the Mexican peso, Turkish lira, or South African rand. Exotic pairs trade in low volume, have wide bid-ask spreads, and can be significantly more volatile than major or minor pairs.

Exchange-Rate Risk(FX Rate Risk) Stocks

Exchange-rate risk is the risk that fluctuations in the relative value of currencies will affect the returns, cash flows, or competitive position of an investment, company, or portfolio. It is frequently used interchangeably with currency risk, though it is also applied more broadly to describe how multinational companies' revenues and costs are affected by moving exchange rates.

Emerging Markets(EM) Stocks

Emerging markets are countries with economies that are industrializing and growing but have not yet reached the income levels, market depth, or regulatory maturity of developed markets. Index providers classify countries such as China, India, Brazil, and South Korea as emerging markets, which typically offer higher growth potential alongside greater volatility, currency risk, and political risk.

Emerging-Market Debt(EM Debt) Stocks

Emerging-market debt refers to bonds issued by emerging-market governments or corporations, offered in either the issuer's local currency or a hard currency such as the U.S. dollar or euro. It typically offers higher yields than developed-market debt to compensate for greater credit, currency, and political risk.

Entrepreneurship Through Acquisition(ETA) Stocks

Entrepreneurship Through Acquisition (ETA) is the broader strategy of becoming a business owner and operator by buying an existing, established company rather than founding a new one. It encompasses several structures, including search funds, self-funded searches, and independent sponsor deals, all built around acquiring cash-flowing small or mid-sized businesses, often from retiring owners.

Equipment Leasing(Equipment Finance) Stocks

Equipment leasing, as an investment, involves purchasing income-producing equipment, such as industrial machinery, medical devices, or transportation assets, and leasing it to an operating business in exchange for regular lease payments. Investors can access this asset class directly, through equipment-leasing funds, or through specialty finance companies that originate and manage leasing portfolios.

Equal-weighted indexStocks

An equal-weighted index assigns the same target weight to each constituent at rebalancing, creating different size and turnover exposures than a market-cap-weighted index.

ETF(exchange-traded fund) Stocks

An exchange-traded fund is a pooled investment product whose shares trade on an exchange throughout the trading day. Most ETFs use creation and redemption processes involving authorized participants to help align market price with portfolio value. Full guide →

economic value added(EVA) Stocks

Economic value added measures profit after charging for all the capital employed, not just the debt. Take net operating profit after tax, then subtract invested capital multiplied by the weighted average cost of capital. A positive figure means the business earned more than the return its providers of debt and equity require, so it created value in the period; a negative figure means it consumed value even if accounting profit was positive. Its practical difficulty is the adjustments needed to turn reported statements into economic capital and profit. Full guide →

electronic tradingStocksCrypto

Electronic trading is the routing, matching and confirmation of orders through computer systems rather than by voice or open outcry. Orders arrive at an electronic venue, are ranked in a limit order book by price and then time, and match automatically when prices cross, with confirmation returned in milliseconds. It cut spreads and per-trade costs, opened direct market access to more participants, and made algorithmic and high-frequency strategies possible. It also introduced new failure modes such as runaway algorithms, which venues address with circuit breakers and pre-trade risk checks.

equity-linked policyStocks

An equity-linked policy is a life insurance or endowment contract whose benefit depends on the performance of an investment fund rather than on a fixed sum assured. Premiums buy units in one or more funds after deduction of charges, and the payout at maturity, surrender or death reflects the unit value at that date, sometimes subject to a guaranteed minimum. The policyholder therefore carries the investment risk, and the comparison that matters is total charges against the cost of holding the same funds outside an insurance wrapper.

exchange controlsStocksFutures

Exchange controls are government restrictions on buying, selling, holding or moving foreign currency. Measures range from licensing requirements for imports and outbound investment, through surrender rules obliging exporters to sell hard currency to the central bank, to outright caps on how much residents may convert or remit. Governments impose them to defend a pegged exchange rate or to conserve scarce reserves. The usual side effects are a parallel exchange rate, capital flight through invoice manipulation, and a persistent gap between official and market pricing that complicates valuing local assets.

execution riskStocksCrypto

Execution risk is the chance that a trade is completed at a materially worse price than the one that prompted the decision, or is not completed at all. It arises from bid-ask spread, market impact when order size is large relative to available liquidity, delay between decision and fill, gaps around news, and venue or system failure. It grows with position size, illiquidity and volatility. Traders manage it by working orders over time, using limit rather than market orders, and measuring realized cost against an arrival price benchmark.

Efficient market hypothesis(EMH) Stocks

The efficient market hypothesis holds that asset prices already reflect available information, so no analysis of that information can systematically produce excess risk-adjusted returns. It is stated in three strengths: weak form, where past prices are already reflected; semi-strong form, where all public information is; and strong form, where private information is too. Evidence broadly supports the weak and semi-strong versions while documenting persistent anomalies. Its practical consequence is that active outperformance requires either genuinely better information processing or acceptance of a risk others avoid.

EBIT/EV Multiple(operating earnings yield) Stocks

The EBIT to enterprise value multiple expresses operating profit as a yield on the total value of the business including debt, rather than as a multiple of it. Because both numerator and denominator sit above the capital structure, it compares companies with different leverage and tax positions on the same footing, and it inverts the more familiar enterprise value to EBIT ratio so that a higher figure indicates a cheaper business. It is one of the two components of Joel Greenblatt magic formula screen.

EBITDA-to-Interest Coverage RatioStocks

The EBITDA to interest coverage ratio divides earnings before interest, tax, depreciation and amortization by interest expense, showing how many times over a company operating cash generation covers the cost of its debt. Lenders write it into covenants because it is easy to compute and reacts quickly to a deterioration in trading. Its weakness is that EBITDA ignores the capital spending needed to keep the assets running and the cash taxes actually paid, so a capital-intensive business can look well covered while free cash flow is negative.

ECN BrokerStocksFutures

An ECN broker routes client orders into an electronic communication network where they meet quotes from banks, funds and other clients directly, rather than taking the other side of the trade itself. Revenue comes from a commission per lot instead of from a widened spread, so raw spreads can be very tight but the cost is explicit and variable rather than embedded. Because the broker is not the counterparty, its own profit does not depend on client losses, though execution quality still varies with the depth of the connected liquidity.

Earnings MultiplierStocks

The earnings multiplier is the price to earnings ratio viewed as a factor applied to profit in order to estimate value: multiply expected earnings per share by the multiplier the market assigns to comparable companies and the result is an implied share price. The multiplier itself is driven by expected growth, the required return and the payout ratio, which is why a fast-growing business commands a higher one. Using it well depends on justifying the chosen multiple rather than borrowing it from a peer average without adjustment.

Economic Value of Equity(EVE) Stocks

Economic value of equity is the present value of a bank expected asset cash flows minus the present value of its liability cash flows, measured across the whole balance sheet. Supervisors require banks to test how that value changes under prescribed interest rate shocks, because a mismatch between long-dated fixed rate assets and short-dated funding can destroy economic value even while reported net interest income looks stable. It is the long-horizon complement to earnings-based measures of interest rate risk in the banking book.

Emerging Market EconomyStocksFutures

An emerging market economy is one in transition from low income toward developed status, with rising per capita income, industrialization and increasingly open financial markets, but with institutions, liquidity and regulatory depth still short of advanced economy standards. Index providers such as MSCI and FTSE Russell classify countries using market accessibility, size and liquidity criteria, and the classification drives large passive flows. Typical investment characteristics are higher growth potential paired with currency volatility, weaker corporate governance and greater sensitivity to global funding conditions.

Enterprise MultipleStocks

The enterprise multiple divides enterprise value, which is market capitalization plus net debt and other claims, by earnings before interest, tax, depreciation and amortization. Because the numerator captures the whole capital structure and the denominator is measured before financing and tax, it compares businesses with different leverage more fairly than the price to earnings ratio and is the standard yardstick in leveraged buyout and merger analysis. It flatters capital-intensive companies, since EBITDA excludes the depreciation that proxies for their reinvestment need.

Enterprise-Value-to-Revenue Multiple(EV/sales multiple) Stocks

The enterprise value to revenue multiple divides the total value of a business including net debt by its sales. It is used when earnings are negative or unrepresentative, which makes it common for early-stage software, biotechnology and companies in a turnaround. Its weakness is that revenue says nothing about the margin that revenue will eventually produce, so comparisons are only meaningful between businesses with similar gross margins, growth rates and capital intensity.

Esoteric DebtStocks

Esoteric debt is asset-backed borrowing secured on cash flows outside the standard mortgage, auto, card and student loan categories. Collateral has included aircraft leases, shipping containers, cell towers, data centers, franchise royalties, music catalogues, timeshare receivables, litigation settlements and pharmaceutical royalties. Because each structure is bespoke, there is little comparable performance history, few natural buyers and thin secondary trading, so investors demand extra spread for the analytical work and the illiquidity rather than for credit risk alone.

Evergreen FundingStocks

Evergreen funding supplies capital continuously rather than in a single closed round with a fixed end date. In venture and private equity it describes a vehicle with no set term that recycles realized proceeds into new investments and can accept subscriptions and process redemptions on an ongoing basis. In corporate lending it describes a facility that is repeatedly renewed so that the borrower can treat short-term debt as effectively long-term. Both versions trade the discipline of a hard deadline for flexibility, and both require careful valuation of unrealized holdings.

Exchange Traded Product(ETP) Stocks

Exchange traded product is the umbrella term for instruments that track an index or asset and trade on an exchange like a share. It covers exchange traded funds, which hold a portfolio and are usually registered investment companies; exchange traded notes, which are unsecured debt of a bank so the holder carries issuer credit risk; and exchange traded commodities, which are typically collateralized notes or physically backed trusts. The legal wrapper determines tax treatment, investor protections and what happens if the sponsor fails, so it matters more than the shared ticker format suggests.

earnings growthStocks

The rate at which a company's profit rises from one period to the comparable prior period, usually quoted per share so changes in share count are accounted for. It can come from selling more, charging more, widening margins, or reducing shares outstanding through buybacks, and the source matters because each has a different persistence. Paying a higher multiple assumes the rate continues, so valuation risk rises with that assumption.

employee stockStocks

Company shares provided to employees as compensation, through restricted stock units that vest into shares, options granting a right to buy at a set price, or a purchase plan buying at a discount through payroll deduction. Each carries its own vesting schedule and tax timing. The main portfolio consequence is concentration, because salary, benefits, and a large holding then all depend on the same employer.

environmentalStocks

The E in ESG analysis: factors covering a company's physical and regulatory exposure to the natural world. Common measures include greenhouse gas emissions from direct operations, purchased energy, and the value chain, alongside water use, waste, biodiversity impact, and revenue exposed to carbon pricing or transition rules. Most data is company self-reported, so coverage and comparability vary widely between issuers and between rating providers.

ETFsStocks

Exchange-traded funds: pooled vehicles whose shares trade on an exchange through the day at market-determined prices. Share supply expands and contracts through creation and redemption, in which authorized participants exchange a basket of securities for large blocks of fund shares, an arbitrage mechanism that holds the price close to net asset value. Most track a published index, and the in-kind exchange also makes the structure relatively tax-efficient in the United States.

ETNsStocks

Exchange-traded notes: unsecured debt obligations of a bank promising the return of a stated index, less fees, at maturity or on early redemption. Because the issuer owes the index return rather than holding assets, the note tracks its benchmark without tracking error while the investor carries the issuer's credit risk. Issuers can suspend new issuance, after which the note can trade at a large premium to its indicative value.

ETPsStocks

Exchange-traded products: the umbrella term for exchange-listed vehicles offering exposure to an index, asset, or strategy. It covers exchange-traded funds registered as investment companies, grantor trusts holding a physical commodity, commodity pools holding futures, and exchange-traded notes that are simply bank debt. The wrapper decides the investor's legal claim and tax treatment and whether a portfolio exists behind the shares at all, so the distinction matters more than the shared ticker format.

European fund structuresStocks

The legal vehicles used to package pooled investments in Europe. Most fall under one of two regimes: UCITS, for funds sellable to retail investors across the European Union under harmonized rules on liquidity, diversification, and leverage, and the Alternative Investment Fund Managers Directive regime covering everything else. Common national forms include the Luxembourg and French SICAV, the Irish ICAV, and the United Kingdom OEIC and authorised unit trust.

EarnoutOptionsStocks

An earnout is a portion of an acquisition price that the buyer pays only if the acquired business hits agreed targets after closing. The agreement specifies the metric (revenue, gross profit, EBITDA, a regulatory approval or a product milestone), the measurement period, the payment schedule and any cap. It bridges a valuation disagreement by shifting part of the price onto outcomes the seller claims are achievable. Disputes are common because the buyer controls the business during the measurement period, so contracts usually add covenants about how it will be run.

Ecommerce Business AcquisitionStocks

Ecommerce business acquisition is the purchase of an online retail operation, including its storefront, product listings, supplier relationships, inventory, customer data and marketplace seller accounts. Pricing is a multiple of trailing profit, adjusted for supplier concentration, dependence on a single marketplace, advertising cost trends, and how much working capital the inventory cycle consumes. Diligence verifies sales and returns against platform reports, checks trademark and brand registry ownership, inspects inventory aging, and confirms whether the seller account itself can transfer, since some marketplaces restrict that.

Employees' Provident FundStocks

An Employees' Provident Fund is a statutory retirement savings scheme funded by compulsory contributions from employers and employees, most prominently in India, where it is administered by the Employees' Provident Fund Organisation, and in Malaysia, where a national board runs the equivalent scheme. Contributions are a fixed percentage of eligible wages, balances accrue interest at a rate declared periodically by the administering body, and withdrawal is permitted at retirement or on qualifying grounds such as sustained unemployment, housing or medical need. Rates and rules are set by statute in each country.

Enterprise Investment SchemeStocks

The Enterprise Investment Scheme is a United Kingdom program offering tax reliefs to individuals who subscribe for new shares in qualifying smaller unquoted trading companies. Reliefs can include income tax relief on the amount invested, exemption from capital gains tax on a disposal after a minimum holding period, deferral of gains reinvested into qualifying shares, and loss relief. Both the company and the investor must meet conditions on company size, trade type, age, use of funds and connection to the company, and reliefs are withdrawn if those conditions fail.

Equipment Leasing InvestmentStocks

Equipment leasing investment is the funding of machinery, vehicles, medical devices or industrial plant that is then rented to an operating business under a lease. The lessor owns the asset, receives contracted payments over a fixed term, and takes the residual value at the end. Returns depend on the lessee's credit, the contracted payment stream, and how accurately the residual is estimated, since equipment that becomes obsolete or is specialized to one user resells poorly. Structures range from full-payout finance leases to operating leases where residual value drives most of the return.

Equity-Linked Savings SchemeStocks

An Equity-Linked Savings Scheme is an Indian mutual fund investing predominantly in equities and carrying a statutory lock-in on each investment, in return for eligibility for a deduction under the applicable income tax provisions. Units bought on a given date cannot be redeemed until the lock-in for that specific purchase has run, which matters for systematic monthly investing because every instalment locks separately. Returns are market-linked and not guaranteed, and the deduction, the lock-in length and which tax regime allows it are set by Indian law and change from time to time.

European Long-Term Investment FundStocks

A European Long-Term Investment Fund is an EU-regulated vehicle designed to channel capital into long-term assets such as infrastructure, real assets, private debt and unlisted companies, and it is the only EU fund label that can be marketed to retail investors across member states for that purpose. Rules govern eligible assets, diversification, borrowing limits, and how much liquidity the fund must be able to provide. Versions may be closed-ended with a defined end date, or offer periodic redemption windows subject to a liquidity management framework.

Evergreen Private FundStocks

An evergreen private fund is a private markets vehicle with no fixed end date, which accepts new subscriptions and offers limited redemptions on a recurring schedule instead of drawing capital down and winding up after a set life. Investors buy in at net asset value, gaining immediate exposure to an existing portfolio rather than waiting for a blind pool to deploy. Because the underlying assets are illiquid, redemption is capped at a percentage of net assets per period and can be suspended, so exit is not assured in stressed conditions.

Equity DerivativeOptionsStocks

An equity derivative is a contract whose value is determined by the price of a share, a basket of shares or an equity index rather than by ownership of the shares themselves. Options, futures, forwards, swaps and structured notes on equities all fall into the category. They allow exposure to be taken or hedged without holding the underlying, allow payoffs unavailable from the shares alone (capped, leveraged or conditional returns), and can be traded on an exchange or agreed bilaterally over the counter.

Earnings-Based ModelStocks

An earnings-based model values a company from its reported or forecast profit rather than from dividends or free cash flow. The simplest form applies a multiple, such as price to earnings, to a normalized earnings figure, with the multiple drawn from comparable companies or from a theoretical relationship between growth, payout and required return. More elaborate versions capitalize a sustainable earnings level in perpetuity, or add the present value of profit earned above the cost of equity to book value, as residual income models do. All are sensitive to how earnings are normalized.

EBITDA/EV MultipleStocks

The EBITDA to enterprise value multiple divides earnings before interest, tax, depreciation and amortization by enterprise value, producing a yield-style figure that is the inverse of the more common EV to EBITDA ratio. Expressing it this way makes it directly comparable with a bond yield or an earnings yield, and it avoids the distortion of very small denominators when earnings approach zero. Both forms use enterprise value rather than market capitalization, so companies with different debt loads can be compared on the same operating basis.

Emergency FundStocks

An emergency fund is money held in accessible, low-volatility accounts and reserved for unexpected costs such as a job loss, a medical bill or an urgent repair, rather than for planned spending or investment. Its function is to avoid having to sell long-term investments at an unfavorable moment or to borrow at high rates. Size is commonly framed as a number of months of essential expenses, with the appropriate number depending on income stability, household commitments and available insurance. It is held for availability rather than for return. Full guide →

Equity-Linked SecurityStocks

An equity-linked security is a debt instrument whose repayment depends on the performance of a share, a basket or an equity index rather than being a fixed amount. The issuer combines a bond with an embedded derivative, so the investor may receive an enhanced coupon in exchange for accepting that principal converts into shares or is reduced if the reference falls below a defined level. Payoffs vary widely by structure, the investor holds unsecured credit exposure to the issuer, and secondary liquidity usually depends on the issuer quoting a price.

Exchange Traded DerivativeStocks

An exchange traded derivative is a standardized futures or options contract listed on an exchange, with terms (contract size, expiry, settlement method and tick) set by the exchange rather than negotiated between the parties. Trades are novated to a central counterparty, which becomes the buyer to every seller and the seller to every buyer, and it collects initial margin plus daily variation margin to cover price moves. That structure removes bilateral credit exposure and makes positions transferable, at the cost of the flexibility an over-the-counter contract offers.

Equity Call SwapOptionsStocks

An equity call swap is an equity swap whose equity leg is one-sided. The receiver is paid the appreciation of a reference stock or index over each reset period and pays a funding leg, usually a floating rate plus a spread, but makes no payment on the equity leg when the reference falls. That asymmetry makes the payoff resemble a series of call options rather than the symmetric exchange of a total return swap, and the receiver compensates for it through a higher spread or an explicit premium.

Equity Index SwapOptionsStocks

An equity index swap exchanges the total return of a stock index for a funding payment on the same notional amount. One party receives index appreciation plus reinvested dividends and pays a floating rate plus a spread; if the index falls, that party pays the depreciation as well as the funding leg. It gives index exposure without buying the constituents, which can avoid the cost of replicating a large basket, cross-border settlement, or local ownership restrictions, at the cost of taking credit exposure to the swap counterparty.

Equity OptionOptionsStocks

An equity option is a contract giving the holder the right, but not the obligation, to buy (a call) or sell (a put) a specified number of shares at a fixed strike price on or before an expiry date, in return for a premium paid to the writer. Listed contracts are standardized by the exchange and cleared centrally; over-the-counter contracts are negotiated bilaterally. The premium reflects the gap between strike and current price, the time remaining, expected volatility, interest rates, and any dividends before expiry.

editionsStocks

Editions are the defined production runs in which a multiple-original artwork or collectible is issued, stating how many examples exist. A limited edition is numbered as a fraction, such as 12 of 100, and the plate, screen, or file is usually cancelled afterwards so no further examples can be struck. Smaller editions, artist proofs, and signed examples typically price differently from the open run. Open editions carry no stated cap, which removes scarcity as a price driver and leaves value resting on demand for the image alone.

electric gridsStocks

Electric grids are the networks of transmission lines, substations, and distribution circuits that move electricity from generators to end users. Investors usually access them through regulated utilities, listed infrastructure vehicles, or private infrastructure partnerships. Returns generally come from a regulator-approved rate of return on capital invested in the network rather than from the price of electricity itself, so cash flow depends on the regulatory settlement, the level of approved capital spending, and the utility's ability to recover costs. Rate cases, reliability standards, and interconnection rules are the main variables.

electricityFuturesStocks

Electricity is a commodity traded as delivery of power at a stated location and time, priced per megawatt hour. It is unusual because it cannot be stored economically at scale, so supply and demand must balance instantaneously and prices can swing violently within a single day, occasionally turning negative. Wholesale markets clear day-ahead and real-time auctions by location, while forward contracts, futures, and swaps let generators and buyers fix prices in advance. Weather, fuel costs, plant outages, and transmission congestion are the dominant price drivers.

energy royaltiesStocks

Energy royalties are contractual rights to a share of the revenue produced by an energy asset, paid off the top before most operating costs. The most common form is a mineral or overriding royalty on oil and gas production, though similar structures exist for renewable projects where a landowner or financier receives a percentage of gross generation revenue. The holder carries commodity price and production volume risk without funding drilling, maintenance, or operating expense, and the interest usually runs with the underlying lease rather than with the operator.

entertainment financingStocks

Entertainment financing is the funding of film, television, music, gaming, and live event projects, repaid from the revenue those projects earn. Capital is normally layered: senior lenders advance against contracted receivables such as presales and distribution guarantees, mezzanine or gap financing covers the remaining budget at higher cost, and equity takes the residual. Government tax credits and rebates are frequently monetized as part of the stack. Returns depend on completion, delivery to distributors, and the waterfall that sets who is repaid in what order.

entertainment memorabiliaStocks

Entertainment memorabilia are collectible objects tied to film, television, music, or stage productions, including screen-used props, costumes, instruments, handwritten lyrics, and signed materials. Value rests on provenance (a documented chain back to the production or performer), the cultural standing of the title or artist, condition, and whether the item actually appeared on screen or on stage. Auction houses and specialist authenticators supply the documentation the market relies on. The category is illiquid, sells in irregular auction cycles, and carries meaningful forgery risk without credible paperwork.

entitlementsStocks

Entitlements are the government approvals a parcel of land needs before a specific development can legally be built, including zoning changes, use permits, subdivision approval, environmental clearances, and utility or road connections. Obtaining them converts raw land into a site with defined permitted density and use, which is often the largest single step in land value. The process runs through local planning authorities and public hearings and can take years, so entitlement risk is the possibility that approvals are denied, delayed, or granted only with costly conditions.

equipment financingStocks

Equipment financing funds the purchase or use of machinery, vehicles, and other business hardware, with the equipment itself serving as primary collateral. It takes two main forms: a loan or conditional sale in which the borrower owns the asset and repays principal and interest, and a lease in which the funder owns the asset and the user pays for its use over a term, sometimes with a purchase option at the end. Underwriting centers on resale value, expected useful life, and borrower cash flow, so advance rates track how readily the equipment can be repossessed and sold.

excess spreadStocks

Excess spread is the amount by which interest collected on a securitized pool of loans exceeds the interest owed to the bonds plus servicing fees and realized losses in a given period. It is the first line of credit protection in many asset-backed structures: losses are absorbed by excess spread before any subordinated bond takes a writedown. Depending on the documents, it is released to the residual holder each period or trapped in a reserve account once performance triggers are breached. It shrinks as delinquencies and charge-offs rise.

exotic optionsOptionsStocks

Exotic options are option contracts whose payoff depends on something other than the simple difference between a single underlying price and a strike at expiration. Examples include barrier options that activate or extinguish when a level is touched, Asian options settled against an average price, digital options paying a fixed amount if a condition holds, and lookbacks referencing the highest or lowest price reached over the life of the contract. They trade mostly over the counter, are priced with numerical models rather than closed-form formulas, and carry counterparty and liquidity risk that listed options do not.

extension riskStocksCrypto

Extension risk is the possibility that a bond's expected cash flows arrive later than the pricing assumption because borrowers repay principal more slowly than forecast. It is most visible in mortgage-backed and other prepayment-sensitive securities: when market rates rise, refinancing slows, the average life of the bond lengthens, and the holder stays locked into a below-market coupon for longer. The effect increases duration precisely when rates are rising, which magnifies the price decline. It is the mirror image of contraction risk, where falling rates accelerate repayment.

Economies of ScaleStocksCrypto

Economies of scale are reductions in average cost per unit that come from producing at greater volume. They arise when fixed costs such as plant, research, software or a distribution network spread across more output, when bulk purchasing lowers input prices, and when specialisation raises labour productivity. Beyond some point diseconomies set in as coordination, bureaucracy and logistics costs rise faster than volume. In asset management the same effect shows up as a lower expense ratio on a larger fund. Full guide →

EUROSECURITYStocks

A eurosecurity is a bond or note issued and traded outside the home jurisdiction of the currency it is denominated in, such as a dollar bond issued in London or a yen bond issued in Europe. The prefix has nothing to do with the euro currency. These issues are typically sold through international syndicates, held in bearer or book-entry form through international clearing systems, and fall outside the registration regime of the currency's home regulator, which historically made issuance faster and cheaper.

Exempt Unit TrustStocks

An exempt unit trust is a United Kingdom collective investment scheme whose units may be held only by investors exempt from capital gains tax, principally pension funds and registered charities. Because every holder is exempt, the trust itself pays no tax on gains within the portfolio, so returns compound without the drag a taxable fund would carry. Eligibility is restricted by the trust deed, and units cannot be marketed to ordinary retail investors. Tax rules for such vehicles are set by legislation and change over time.

Expected LossStocks

Expected loss is the average credit loss a lender anticipates on an exposure over a defined horizon, and it is treated as a cost of doing business rather than as risk. It is built from three inputs: the probability that the borrower defaults, the share of the exposure that would not be recovered afterwards, and the amount outstanding at the moment of default. Unexpected loss, the variation around this average, is what capital is held against.

expected returnStocksCrypto

Expected return is the probability-weighted average of an investment's possible outcomes over a period, computed by multiplying each outcome by its likelihood and summing the results. In practice it is estimated from historical averages, from a factor model such as the capital asset pricing model, or from forward-looking building blocks like income yield plus growth. It is a central tendency, not a promise: the dispersion around it is the risk, and a single realised period can fall far from the estimate.

EBITDARStocks

EBITDAR is earnings before interest, taxes, depreciation, amortisation and rent or restructuring costs. Adding rent back is the point in sectors such as airlines, hotels, restaurants and retail, where one operator leases its aircraft or premises and a competitor owns them: stripping the rent out lets the two be compared on operating performance before that financing decision. It is a non-standard measure with no definition under accounting standards, so what a company excludes varies and the reconciliation to reported earnings is where the detail sits.

Earnings AnnouncementStocks

An earnings announcement is a company's scheduled public release of results for a completed period, normally a press release with headline figures, a set of financial statements and management commentary, followed by a call with analysts and often forward guidance. Prices frequently move sharply because the release resolves accumulated uncertainty at a known moment, and options expiring just after the date carry elevated implied volatility that typically collapses once the numbers are out. The formal filing with the regulator follows within a set deadline.

Effective DurationStocks

Effective duration estimates how much a bond's price changes for a small parallel shift in the yield curve when the bond's cash flows themselves can change with rates, as with callable, putable and mortgage-backed securities. It is computed by revaluing the bond in a model at a slightly higher and slightly lower curve and comparing the two prices. Modified duration cannot serve here because it assumes fixed cash flows, and for a callable bond effective duration shortens as rates fall and the call becomes likely.

Elliott Wave TheoryOptionsStocks

Elliott wave theory, proposed by Ralph Nelson Elliott in the 1930s, holds that market prices unfold in repeating patterns driven by swings in collective psychology: five waves in the direction of the larger trend followed by three corrective waves, with the same structure recurring at every time scale. Practitioners label waves and use Fibonacci ratios to project targets and retracements. The framework is descriptive and its labelling is subjective, since the wave count can be revised after the fact, so it is not a testable predictive rule.

Enterprise Value-to-SalesStocks

Enterprise value to sales divides the total value of a business, equity plus net debt and other claims, by its revenue. Because the numerator covers all providers of capital and the denominator sits above every financing and accounting choice, the multiple can compare companies with different leverage and can be applied to businesses that have no earnings yet. Its weakness is that it says nothing about margins, so a low reading may signal a structurally unprofitable business rather than a cheap one.

Equity Co-InvestmentStocks

An equity co-investment is a direct minority stake a limited partner takes alongside a private equity fund in one of that fund's deals, sitting outside the main fund commitment. Sponsors offer it when a transaction is larger than their concentration limits allow, and investors accept because such allocations usually carry reduced or no management fee and carried interest. The trade-off is that the investor gives up diversification and must underwrite and decide on a single asset quickly, with no discretion over exit timing.

Equity MultiplierStocks

The equity multiplier is a leverage measure dividing total assets by shareholders' equity, showing how many currency units of assets the company supports for each unit of equity. A reading of one means the business is financed entirely by equity, and higher readings mean progressively more debt and other liabilities. It is the leverage term in the DuPont decomposition, where return on equity equals net profit margin multiplied by asset turnover multiplied by this ratio, which separates operating performance from financing choices.

Equity Premium PuzzleStocks

The equity premium puzzle is the observation, framed by Rajnish Mehra and Edward Prescott in 1985, that historical returns on shares have exceeded returns on government bills by far more than standard consumption-based asset pricing models can explain. Matching the observed gap within those models requires a level of risk aversion that is implausible against other evidence about how people behave. Proposed resolutions include rare disaster risk, habit formation in preferences, loss aversion with frequent portfolio evaluation, and survivorship bias in the return series used.

Economic CapitalStocksCrypto

Economic capital is a firm's own estimate of the capital it needs to remain solvent over a chosen horizon at a chosen confidence level, given the risks it actually runs. It is computed by modelling the loss distribution across credit, market, operational and other risks, allowing for diversification between them, and taking a high percentile of that distribution. It differs from regulatory capital, which follows supervisory formulas, and it feeds pricing, limit setting and risk-adjusted performance measures.

Economic ProfitStocks

Economic profit is revenue minus both explicit costs and implicit opportunity costs, including a charge for the capital employed at its required rate of return. A firm reporting an accounting profit can still show zero or negative economic profit if it has not covered the return investors could obtain elsewhere at similar risk. In corporate finance the same idea appears as economic value added, computed as net operating profit after tax minus invested capital multiplied by the weighted average cost of capital.

English AuctionStocksCrypto

An English auction is an open ascending price auction: bidding starts low and participants raise it openly until no one will bid higher, and the last bidder wins at the price bid. Because bids are visible, participants learn from one another, which helps when the item's value is uncertain and common to all bidders. It contrasts with a Dutch auction, where the price falls until someone accepts, and with sealed-bid formats where offers are submitted privately.

EURODOLLARStocks

A eurodollar is a US dollar deposit held at a bank outside the United States, including at foreign branches of American banks. The prefix reflects the market's European origins rather than the euro currency, so dollar deposits in Asia are still eurodollars. Because they sit outside the US reserve and deposit insurance framework, rates on these deposits are set by the offshore market, which historically made them the basis for LIBOR-linked lending and for eurodollar futures contracts.

Expectations TheoryOptionsStocks

Expectations theory explains the shape of the yield curve by arguing that long-term interest rates reflect what the market expects short-term rates to be over the same period. In its pure form it implies a two-year rate equal to the compounded average of the current one-year rate and the one-year rate expected a year from now, so an upward sloping curve implies expected rate rises. Evidence points to a term premium as well, which the liquidity preference variant adds.

Experience AccountStocks

An experience account is a notional account used in finite risk reinsurance and some large commercial insurance programmes to track the premiums a policyholder has paid, plus credited investment income, minus claims paid and the reinsurer's charges. If the balance is positive when the contract ends, an agreed share is returned to the policyholder, so the buyer keeps much of the benefit of good loss experience. The structure blends risk transfer with a financing element, which attracts accounting scrutiny.

Extreme Mortality BondStocks

An extreme mortality bond is an insurance-linked security that transfers the risk of a sharp, unusual rise in death rates from a life insurer or reinsurer to capital markets investors. Investors receive a floating coupon plus a spread and repayment of principal at maturity, but lose principal if a defined mortality index for specified countries exceeds a trigger level during the risk period. Because pandemics and catastrophes drive it, the exposure has low correlation with financial market returns.

Economic and monetary unionStocksFutures

Economic and monetary union is an arrangement in which a group of states coordinates economic policy, adopts a single currency and transfers monetary policy to a common central bank. The European example combines the euro and the European Central Bank with fiscal rules and mutual surveillance, while each member retains its own budget and tax powers. Members give up independent interest rates and exchange rate adjustment, so shocks that affect one member unevenly must be absorbed by other means.

Equity SwapOptionsStocks

An equity swap exchanges the total return on an equity or equity index for a financing leg, usually a floating interest rate plus or minus a spread, on a notional amount over a set term. The party receiving the equity leg collects price appreciation and dividends and pays out any decline, gaining exposure without owning the shares. Users include investors seeking access to restricted markets, funds financing positions, and companies hedging deferred compensation obligations.

easy moneyStocksCrypto

Easy money describes a monetary policy stance in which the central bank keeps short-term interest rates low and credit plentiful in order to support demand, employment and inflation. The tools are a low policy rate, low reserve requirements, generous lending facilities and asset purchases that add reserves to the banking system. Cheap funding encourages borrowing and pushes investors toward riskier assets in search of yield, which is one channel through which the policy is meant to work. Policymakers withdraw it when inflation or financial imbalances build, a shift usually described as tightening. The opposite stance is tight or restrictive money.

effective rateStocks

An effective rate expresses the true annual cost or return of an instrument after compounding is taken into account, so that quotes with different compounding conventions can be compared. It is calculated as (1 + i / n) raised to the power n, minus 1, where i is the nominal annual rate and n the number of compounding periods per year. A nominal rate compounded monthly therefore produces a higher effective rate than the same nominal rate compounded annually. Lending disclosure rules in many jurisdictions require an annualized figure built on the same idea, sometimes also folding in mandatory fees.

electricity swapOptionsStocks

An electricity swap exchanges a fixed price for a floating power price over a defined delivery period, settled in cash without any physical power changing hands. The floating leg references an index at a specific delivery hub for a defined block of hours, usually peak or off-peak, and the notional is expressed in megawatt hours. Generators use it to lock in revenue and large consumers or retail suppliers use it to fix input cost, while the underlying electricity still moves through the physical market. Because power cannot be stored economically, prices are shaped by hourly demand, weather and plant outages, so basis between hubs and between hour blocks is a distinct risk.

electronic limit order bookStocksCrypto

An electronic limit order book is the central record a trading venue keeps of all resting buy and sell limit orders, sorted by price and then by time of arrival. The highest bid and lowest offer form the top of book, and the gap between them is the quoted spread. An incoming order that crosses the opposite side executes against resting orders in priority sequence, consuming depth level by level until it is filled or its limit is reached. Because matching is automated and priority rules are published, participants can infer available depth, though hidden and iceberg order types deliberately conceal part of the true size.

eligible paperStocks

Eligible paper is short-term debt that a central bank will accept as collateral or purchase in its open market and discount operations. Eligibility criteria are published and typically cover the type of instrument, the credit standing of the obligor, the remaining maturity and the currency, with a haircut applied to the market value when the paper is pledged. Because eligibility makes an instrument easier to fund, it usually trades at a tighter yield than comparable ineligible paper, and a change in the published criteria moves relative prices directly. The Bank of England historically applied the term to bills it would rediscount.

embedded optionOptionsStocks

An embedded option is a right attached to a security that cannot be separated and traded on its own. Callable bonds hold a call written by the investor and owned by the issuer; putable bonds hold a put owned by the investor; convertibles hold a conversion right; and mortgage-backed securities contain the borrower's prepayment option. The presence of one breaks the usual price and yield relationship, so analysts use option-adjusted spread and effective duration, which are computed by valuing the bond across many interest rate paths, rather than yield to maturity and modified duration. Whoever is short the option is compensated through a higher yield.

endogenous liquidityStocksCrypto

Endogenous liquidity risk is the part of liquidation cost that depends on the size of your own position relative to normal market depth. A holding small enough to trade inside the quoted spread faces only exogenous liquidity risk, the cost every participant pays; a holding large enough to move the price as it is worked faces an additional cost that grows with position size and shrinks with market depth. Liquidity-adjusted value at risk models add this term explicitly, because it rises exactly when volatility rises and depth thins, which is why crowded positions are the hardest to exit in a stressed market.

equilibrium pricing modelStocksCrypto

An equilibrium pricing model derives asset prices from the condition that supply equals demand when investors optimize under stated preferences and constraints. The capital asset pricing model is the standard example: given mean-variance investors and common expectations, prices settle so that expected excess return is proportional to covariance with the market portfolio. Consumption-based and intertemporal models extend the idea to a stochastic discount factor tied to marginal utility. This class contrasts with no-arbitrage models such as Black-Scholes, which take the underlying price as given and rule out riskless profit rather than explaining the level of prices from preferences.

equity financeStocks

Equity finance raises money by selling an ownership stake in a business rather than by borrowing. Investors receive a residual claim: they rank behind every creditor in a wind-up, but they share in profits through dividends and in value growth through the price of their shares, and they usually carry voting rights. There is no contractual repayment date and no obligation to pay a dividend, so it does not create the fixed servicing burden debt does, but existing owners give up a portion of future value and control. Channels include founder capital, angel and venture rounds, private equity, and public offerings.

escrow accountStocks

An escrow account holds money or documents with a neutral third party until the conditions of an agreement are met, at which point the holder releases the funds to whichever side is entitled to them. Property transactions use one to hold the buyer's deposit between contract and completion. Mortgage servicers use a different form, collecting a monthly amount alongside principal and interest to accumulate the funds needed for property taxes and hazard insurance, then paying those bills as they fall due and adjusting the collection after an annual analysis. Merger agreements hold part of the purchase price in escrow to cover indemnity claims.

EurexOptionsStocks

Eurex is a European derivatives exchange operating an electronic order book for futures and options on interest rates, equity indices, single stocks and other underlyings, with its own clearing house acting as central counterparty to every trade. It was formed in 1998 by combining the German and Swiss derivatives exchanges, and it is part of the Deutsche Boerse group. Its interest rate contracts on German government debt, covering short, medium and long maturities, are among the most heavily traded benchmarks for euro rate risk. Clearing, margining and default management run through the affiliated clearing house rather than bilaterally between members.

euroStocksFutures

The euro is the shared currency used by those European Union member states that have adopted it, together known as the euro area. Monetary policy for the whole area is set by the European Central Bank and implemented with the national central banks in the Eurosystem, so member states give up an independent policy rate and an independent exchange rate against each other. Notes and coins entered circulation in 2002 after a transition period in which the currency existed only in accounting form. Joining requires meeting convergence conditions on inflation, public finances, exchange rate stability and long-term interest rates.

euro commercial paper(ECP) Stocks

Euro commercial paper is unsecured short-term debt issued outside the currency's home jurisdiction, sold to institutional investors through dealers under a programme that lets the borrower draw repeatedly without a new prospectus each time. Maturities generally run from a few days to under a year, notes are issued at a discount or with interest at maturity, and no separate registration with the home country securities regulator applies. Investors take unsecured credit risk on the issuer and rely on the borrower's continued access to the market for repayment, which is why a programme is normally backed by committed bank lines.

eurocurrencyStocksFutures

A eurocurrency is a bank deposit denominated in a currency other than that of the country where the deposit is held, such as United States dollars held at a bank in London or Tokyo. The prefix has nothing to do with Europe or with the euro; it simply marks the deposit as sitting outside the issuing country's domestic banking system and therefore outside its reserve and deposit insurance requirements. That lighter regulatory load historically let eurocurrency banks quote narrower spreads between deposit and lending rates than onshore banks. The market supplies wholesale funding to banks and corporates and prices off interbank benchmark rates.

euroequity issueStocksFutures

A euroequity issue is a share offering placed simultaneously with investors in several countries outside the issuer's home market, usually through an international syndicate. It differs from a purely domestic offering in distribution rather than in the security itself: the same shares are marketed to a broader investor base, often alongside a home tranche, to widen demand and raise more than the domestic market alone could absorb. Issuers also use it to build an international shareholder register ahead of a foreign listing. Each participating jurisdiction's selling restrictions apply, which is why such deals are structured around private placement exemptions.

evergreenStocks

Evergreen describes an arrangement that renews automatically rather than running to a fixed end date. An evergreen credit facility has no stated maturity and continues until one side gives the agreed notice, often paired with a term-out provision that converts the balance into an amortizing loan once notice is served. An evergreen fund has no fixed life and no wind-up date: it accepts new subscriptions and processes redemptions on a periodic schedule and recycles realized proceeds into new investments instead of returning them, which contrasts with the fixed-term draw down and distribute structure used by closed-end private funds.

exempt gilts(FOTRA gilts) Stocks

Exempt gilts are United Kingdom government bonds on which interest may be paid to holders who are not resident in the United Kingdom without deduction of United Kingdom income tax. The status originates in the free of tax to residents abroad provisions attached to certain issues, and modern gilts are generally paid gross in any case, with the investor's liability determined by the tax rules of the country where they reside. The relief covers withholding at source and does not by itself remove a domestic tax liability elsewhere. Treatment is set by United Kingdom legislation and by any applicable double taxation treaty.

expected credit loss(ECL) Stocks

Expected credit loss is the probability-weighted estimate of losses on a financial asset over a defined horizon, and it is the measurement basis for loan loss provisions under IFRS 9 and the United States current expected credit loss standard. The building blocks are probability of default, loss given default and exposure at default, multiplied together and discounted to present value. Because the model is forward-looking, banks must incorporate macroeconomic forecasts and usually weight several scenarios. Under IFRS 9 an asset whose credit risk has increased significantly since origination moves from a twelve-month measurement to a lifetime one, which is what makes provisions move sharply at the transition point.

expected volatilityOptionsStocks

Expected volatility is the amount of price variability an underlying asset is anticipated to show over a stated future period, normally quoted as an annualized standard deviation of returns. It is an input rather than an observation: option pricing models take it as a parameter, and reversing a model against traded option prices produces implied volatility, the market's collective estimate. Forecasts can also be built from historical returns using time series models that let volatility cluster and mean revert. Because it is unobservable, the realized outcome regularly differs from the forecast, and the gap between implied and subsequently realized volatility is itself traded.

experience ratingStocks

Experience rating sets an insurance premium using the policyholder's own claims history rather than the average of the class it belongs to. The insurer compares the account's actual losses over a review period with what a similar risk would be expected to produce, then applies a credibility weight so that a small account with limited data is priced mostly on class averages while a large account is priced mostly on its own record. Workers compensation and group health lines use it heavily. The design gives the insured a direct financial reason to reduce losses, and it is distinct from schedule rating, which adjusts for observable risk features.

exportsStocks

Exports are goods and services produced in one country and sold to buyers in another. In national accounts they add to gross domestic product, and subtracting imports gives net exports, the external contribution to output. Exports appear as a credit in the current account of the balance of payments and generate demand for the exporter's currency when proceeds are converted. What a country sells abroad depends on relative costs, the real exchange rate, trade agreements and tariffs, and demand conditions in destination markets. Investors track export data because it signals external demand and, for commodity exporters, the terms of trade.

environmental economicsStocksCrypto

Environmental economics studies how economic activity uses natural resources and generates pollution, and how policy can align private incentives with social costs. Its central idea is the externality: when a producer does not bear the damage its emissions cause, output exceeds what is socially efficient. Remedies include taxing the harmful activity, assigning tradable permits so a fixed quantity of emissions finds its lowest-cost abatement, and defining property rights so affected parties can bargain. The field also develops methods to value goods with no market price, such as clean air, using stated and revealed preference techniques, and it underpins carbon pricing and cost-benefit analysis of regulation.

Economic ExposureOptionsStocks

The sensitivity of a company's future cash flows and market value to unexpected exchange rate moves, beyond the contracted amounts already on the books. A domestic manufacturer with no foreign invoices still carries it if a stronger home currency lets importers undercut its prices. Because it works through volumes and margins rather than a fixed receivable, it is estimated by regressing operating cash flows on currency moves and managed by shifting production, sourcing or pricing rather than by a single hedge.

Electronic Payments NetworkStocks

The privately operated automated clearing house in the United States, run by The Clearing House, which processes batched credit and debit transfers between banks alongside the Federal Reserve's FedACH service. Originating institutions submit files of payment instructions, the operator sorts and delivers them to receiving institutions, and settlement occurs across accounts at the Federal Reserve. Direct deposit of payroll and recurring bill payments make up typical volume.

Equity Capital MarketOptionsStocks

The part of the financial system through which companies raise money by selling ownership stakes, and where those shares later change hands. The primary side covers initial public offerings, follow-on issues, rights offerings and convertible sales, usually arranged by investment banks that price, underwrite and distribute the deal. The secondary side is exchange and over-the-counter trading among investors, which supplies the price reference and the liquidity that make primary issuance possible.

Equity AnalystStocks

A researcher who studies listed companies and publishes a view on their shares, typically covering one sector. The work involves modeling revenue, margins and cash flow, meeting management, and translating those forecasts into a valuation and a rating. Sell-side analysts at brokers distribute research to clients and are subject to rules separating them from investment banking, while buy-side analysts produce the same work internally for their own firm's portfolios.

Economic CalendarStocksCrypto

A schedule of upcoming data releases, central bank meetings and official events, listing the time of each, the prior reading and the consensus forecast. Traders use it to know when liquidity is likely to thin and prices to gap, and to compare the released figure against the expectation, since markets generally respond to the surprise rather than the level. Entries are usually ranked by expected market impact, and revisions to earlier data can matter as much as the new print.

Equity MarketOptionsStocks

The market in which ownership shares of companies are issued and traded. Prices come from the orders investors submit, and reflect expectations about future earnings, the rate at which those earnings are discounted, and the risk premium demanded for holding equity. Trading takes place on exchanges and on alternative venues, with market makers or a central limit order book matching buyers and sellers, and shareholders rank behind all creditors if the company fails.

Equity-Linked NoteStocks

A debt instrument whose repayment depends on the performance of a share, basket or index rather than on a fixed coupon alone. The issuer combines a zero coupon bond with an option position, so the note can offer capped upside participation, a buffer against a first slice of losses, or an enhanced coupon in exchange for downside exposure. The holder takes the issuer's credit risk on the whole amount, and secondary prices reflect issuer funding levels and option values, not the underlying alone.

Economic IndicatorsStocks

Published statistics that describe the condition of an economy and are used to judge where it sits in the cycle. Leading indicators such as new orders, building permits and yield curve slope tend to move before output does. Coincident indicators such as industrial production and payroll employment move with it. Lagging indicators such as the unemployment rate and unit labor costs confirm turns after the fact. Most are revised after first publication, so the initial print is an estimate.

ELEPHANTStocks

Market slang for an institution large enough that its orders move prices, typically a major pension fund, sovereign wealth fund or asset manager. Brokers court this business because a single mandate can generate substantial commissions, a pursuit known as elephant hunting. The size that makes such a client valuable also makes execution difficult: the order must be worked in pieces over time to avoid signalling and pushing the price away before it is filled.

EPS BootstrappingOptionsStocks

The mechanical rise in an acquirer's earnings per share when a company trading on a high price to earnings multiple issues its own shares to buy one trading on a lower multiple. Because the target's earnings are bought for fewer shares than the acquirer's own multiple implies, the combined earnings spread over the enlarged share count come out higher with no operating improvement behind it. The effect stops as soon as the acquirer's multiple falls toward the target's, which is why accretion alone is a poor test of a deal.

EBITDA-to-Sales RatioStocks

Earnings before interest, taxes, depreciation and amortization divided by revenue, expressed as a percentage. It shows operating profitability before financing decisions, tax position and non-cash charges for past capital spending, which makes it easier to compare companies with different capital structures and asset ages. The same exclusions are its weakness: a capital-intensive business with heavy ongoing reinvestment can look far more profitable on this measure than its free cash flow supports.

Emerging Markets Bond Index(EMBI) Stocks

A family of benchmarks published by J.P. Morgan tracking United States dollar denominated sovereign and quasi-sovereign debt issued by developing countries, most commonly referenced through the EMBI Global and its diversified variant. Constituents must meet liquidity and size criteria, and the diversified version caps the weight of the largest borrowers so a few heavily indebted countries do not dominate. Returns are usually discussed as a spread over United States Treasuries, which isolates the credit and country risk being compensated.

Eurocurrency MarketStocks

The market for bank deposits and loans denominated in a currency outside the country that issues it, such as dollar deposits held at banks in London or Singapore. The name predates the euro and has nothing to do with it. Because these deposits sit beyond the domestic reserve and deposit insurance framework, banks historically offered finer rates on them, and the market became the main channel for wholesale international lending and for syndicated cross-border credit.

Exempt-Interest DividendStocks

A distribution from a mutual fund or exchange-traded fund that passes through interest the fund earned on municipal bonds, which is generally excluded from federal income tax for United States holders. The fund reports the amount separately on the annual dividend statement, and the portion attributable to bonds issued in the holder's own state is often exempt from that state's tax as well. Part of it can be a preference item for alternative minimum tax purposes, and capital gains the fund distributes remain taxable.

efficient diversificationStocksCrypto

Efficient diversification is the construction of portfolios that carry the least variance available for each level of expected return, by combining assets whose returns are less than perfectly correlated. Because the variance of a combination depends on covariances as well as individual volatilities, adding an imperfectly correlated holding lowers portfolio risk without a matching cut in expected return. The set of portfolios achieving this forms the efficient frontier in the mean-variance framework.

EAFE IndexStocks

The EAFE index is a market capitalization weighted equity index published by MSCI covering large and mid-sized companies in developed markets across Europe, Australasia and the Far East. It deliberately excludes the United States and Canada, which makes it the standard benchmark for the international developed-market portion of a North American investor's equity allocation. Returns are quoted with or without currency hedging, and the difference between the two can be large in a single year.

Earned Income CreditStocks

The earned income credit is a refundable United States federal tax credit for workers with low to moderate earnings, worth more to those with qualifying children. It rises with earned income across a phase-in range, holds at a maximum, then tapers off as income passes a threshold, and because it is refundable it can produce a payment even when no tax is owed. Income limits, credit amounts and the investment income cap are adjusted annually by the Internal Revenue Service.

Earnings Before Interest After TaxesStocks

Earnings before interest after taxes measures the operating profit a company would report if it carried no debt, calculated as operating profit multiplied by one minus the tax rate. Removing interest while keeping a tax charge isolates performance from capital structure, so businesses with different leverage can be compared. It is the starting point for free cash flow to the firm in a discounted cash flow valuation, where the tax benefit of debt is handled in the discount rate instead.

Earnings EstimateOptionsStocks

An earnings estimate is an analyst's forecast of what a company will report for a future period, usually stated as earnings per share. Estimates are collected by data providers and averaged into a consensus, which becomes the reference point the market compares the actual result against, so a share can fall on rising profits that came in below expectations. Estimates are revised as guidance, industry data and macro conditions change, and the direction of revisions is itself watched.

Earnings Power ValueOptionsStocks

Earnings power value estimates what a business is worth on the assumption that its current sustainable earnings continue indefinitely with no growth. Reported operating profit is adjusted for one-off items, for the cycle, and for the difference between depreciation and the capital spending needed simply to maintain the asset base. The adjusted figure after tax is then divided by the cost of capital, and comparing the result with asset value shows how much comes from competitive advantage.

Economic IntegrationStocksCrypto

Economic integration is the process by which countries reduce the barriers separating their markets, moving through progressively deeper arrangements: a free trade area removing tariffs among members, a customs union adding a common external tariff, a common market allowing labor and capital to move freely, and an economic and monetary union coordinating policy and sharing a currency. Deeper stages raise trade and investment flows but require members to surrender more policy autonomy.

Emerging Markets IndexStocks

An emerging markets index tracks listed equities in countries a provider classifies as developing, using tests of income level, market size, liquidity, foreign ownership rules and settlement infrastructure. Constituents are weighted by market capitalization adjusted for the shares actually available to foreign investors. Reclassifying a country into or out of the category forces large mechanical flows from the funds that track the index, which is why provider review decisions are closely watched.

Employee Stock Ownership PlanStocks

An employee stock ownership plan is a qualified retirement plan in the United States that invests primarily in shares of the sponsoring employer. The company contributes stock or cash to a trust that allocates shares to employee accounts, and a leveraged version borrows to buy a block of shares and repays the loan from future contributions. Employees receive their vested shares or cash value on leaving, and owners of private companies use the structure to sell a stake.

EnronStocks

Enron was a Houston energy trading company that collapsed into bankruptcy in 2001 after it emerged that reported profits had been inflated and debts hidden in off-balance-sheet partnerships. Its auditor, Arthur Andersen, was destroyed by the fallout, executives were prosecuted, and employees lost retirement savings concentrated in company stock. The failure prompted the Sarbanes-Oxley Act, which tightened auditor independence, internal control reporting and executive certification of financial statements in the United States.

Equity AccountingOptionsStocks

Equity accounting, or the equity method, is how an investor reports a stake that gives significant influence but not control, presumed when it holds roughly twenty to fifty percent of the voting rights. The investment starts at cost and is then increased or decreased by the investor's share of the investee's profit or loss, with dividends received reducing the carrying amount rather than being recorded as income. One line appears on the balance sheet and one in the income statement.

Equity CompensationOptionsStocks

Equity compensation pays employees in ownership of the employer rather than in cash: stock options exercisable at a set price, restricted stock units delivering shares once vesting conditions are met, performance shares tied to targets, and discounted purchase plans. Awards vest over time to encourage retention, are recorded as an expense at grant-date fair value, and dilute existing shareholders when the shares are issued. Tax treatment depends on the award type and the jurisdiction.

Equivalent Annual Annuity ApproachStocks

The equivalent annual annuity approach compares projects with different lives by converting each project's net present value into the constant annual cash flow that would have the same present value over that project's life. Dividing net present value by the annuity factor for the project's life and discount rate gives the figure, and projects can then be ranked on a common annual basis. It assumes each project could be repeated indefinitely on the same terms.

Euro Medium Term NotesStocks

Euro medium term notes are debt securities issued continuously under a standing program rather than in a single dated offering. The issuer prepares documentation once, then draws down tranches as funding is needed, choosing size, currency, maturity and coupon structure to match what investors want at that moment. Maturities typically run from about one year out to a decade or more. The program is arranged outside the issuer's domestic market and sold to international investors.

EurobondStocks

A eurobond is issued outside the jurisdiction of the country whose currency it is denominated in, so a dollar bond sold to international investors through a London syndicate is a eurobond regardless of where the issuer is based. The market grew because these issues escaped domestic registration requirements and withholding taxes, and settlement runs through international clearing systems. The prefix has nothing to do with the euro currency and predates it by decades.

European Central BankStocks

The European Central Bank sets monetary policy for the countries that use the euro, with the primary objective of maintaining price stability as defined by its own inflation target. Its Governing Council decides policy rates and asset purchase programs, and implementation runs through the national central banks of the euro area. It also supervises the largest banks in participating countries under the single supervisory mechanism, and authorizes issuance of the currency's banknotes.

European Monetary SystemStocks

The European Monetary System was an arrangement launched in 1979 to limit exchange rate fluctuations among European Community members ahead of monetary union. Its core was the exchange rate mechanism, under which each currency held a central rate against the European Currency Unit and traded within agreed margins, defended by central bank intervention and periodic realignments. Pressure on several currencies in 1992 and 1993 forced sterling and the lira out and led to much wider bands.

European Sovereign Debt CrisisStocks

The European sovereign debt crisis was the period from about 2009 in which several euro area governments faced sharply higher borrowing costs and doubts about their ability to refinance debt. Greece, Ireland, Portugal, Spain and Cyprus took assistance programs tied to fiscal and structural conditions. Because member states borrow in a currency they do not individually control, and their banks held large amounts of their own government's debt, sovereign and banking stress reinforced each other.

Evergreen LoanStocks

An evergreen loan is a revolving credit line with no fixed repayment schedule that is renewed at each review rather than amortized to zero. The borrower draws, repays and redraws within a limit, paying interest on the balance and a fee on the unused portion, while the lender reassesses the facility periodically and sometimes requires a short annual clean-down to zero. It suits recurring working capital needs but leaves refinancing risk at each renewal date.

Excess ReservesStocks

Excess reserves are the balances a bank holds at the central bank above whatever minimum requirement applies to it. They are the most liquid asset a bank can hold and can be lent overnight to other banks, so the rate the central bank pays on them sets a floor under short-term money market rates. Large-scale asset purchases create them in quantity, since the central bank pays for securities by crediting reserve accounts.

Exchange Rate MechanismStocks

An exchange rate mechanism is a system that keeps participating currencies within agreed margins around central rates, with authorities intervening or adjusting policy when a rate approaches the edge of its band. The most widely cited example operated in Europe from 1979 as part of the European Monetary System and later as a convergence test for euro membership. Such a mechanism constrains monetary policy, because defending the band takes priority over domestic conditions.

Exchange of Futures for PhysicalStocksFutures

An exchange of futures for physical is a privately negotiated transaction in which one party's futures position is swapped for an equivalent quantity of the underlying commodity or instrument held by the other, with both legs reported to the exchange for clearing. It lets a hedger convert a futures hedge into the physical goods, or the reverse, at a price the two sides agree rather than on the central order book. Exchanges set eligibility rules and require documentation.

Export Credit AgencyStocks

An export credit agency is a public or publicly backed institution that supports a country's exporters by insuring, guaranteeing or directly financing sales to foreign buyers. It covers risks commercial lenders are reluctant to take, such as a buyer defaulting, a government blocking currency transfers, or expropriation, and it typically requires that the goods and services carry significant domestic content. Support terms among participating countries follow an international arrangement intended to limit subsidy competition.

EBITAStocks

EBITA is earnings before interest, taxes and amortization: operating profit with amortization of intangible assets added back, while depreciation of physical assets remains deducted. It sits between operating profit and EBITDA. Analysts use it where acquisitions have created large intangible balances whose amortization reflects purchase accounting rather than ongoing economics, but where the business still consumes real equipment that depreciation properly charges. It is not defined by accounting standards, so the calculation has to be shown.

Earnings Before Interest, Depreciation and Amortization(EBIDA) Stocks

Earnings before interest, depreciation and amortization is a profit measure that adds depreciation and amortization back to earnings but leaves tax expense deducted, unlike EBITDA. Keeping tax in the figure acknowledges that tax is a genuine cash cost the business cannot avoid, which makes the measure more conservative. It appears in credit analysis of entities whose tax position is stable and material, and like other measures outside accounting standards it must be reconciled to a reported figure to be comparable.

Economic DepreciationStocks

Economic depreciation is the actual decline in an asset's market value or service capacity over a period, driven by wear, aging, obsolescence and changes in what buyers will pay. Accounting depreciation instead allocates historical cost over an estimated life on a chosen schedule, and the two rarely coincide: an asset can be fully written off in the books while still commanding a price, or lose value quickly while the schedule spreads the charge evenly. Valuation and capital budgeting use the economic measure.

Economic Recovery Tax Act of 1981Stocks

The Economic Recovery Tax Act of 1981 was a United States law that cut individual income tax rates across brackets over three years, reduced the top marginal rate, introduced the Accelerated Cost Recovery System for faster write-off of business assets, indexed tax brackets to inflation from the mid-1980s, and widened eligibility for individual retirement account deductions. It is the reference point for supply-side tax policy, and later legislation reversed or modified many of its provisions, so its terms do not describe current law.

Effective Annual Interest Rate(effective annual rate) Stocks

The effective annual interest rate converts a rate quoted with intra-year compounding into the single annual rate that would produce the same result, making offers with different compounding frequencies comparable. It equals one plus the nominal annual rate divided by the number of compounding periods, raised to the power of that number of periods, minus one. Compounding more often at the same nominal rate raises it, approaching a limit as the interval shrinks toward continuous compounding.

Effective YieldStocks

Effective yield is the annual return on a bond assuming each coupon received is reinvested at the same rate until maturity, so it captures interest earned on interest that a simple coupon rate ignores. For a bond paying twice a year it equals one plus the semiannual yield, squared, minus one. It exceeds the nominal coupon yield whenever coupons arrive more than once a year, and it is only achieved if reinvestment actually happens at the assumed rate.

Efficiency RatioStocks

The efficiency ratio measures what a bank spends to generate a unit of revenue, dividing non-interest expense by the sum of net interest income and non-interest income. A lower figure means more revenue survives the cost base, and the number is watched closely because banks compete on cost as much as on pricing. Outside banking the term is used loosely for asset turnover measures, so the formula in use has to be stated before figures are compared across sources.

EncumbranceStocks

An encumbrance is any claim, restriction or liability attached to property that limits its transfer or reduces its value while ownership remains with the holder. Mortgages and tax liens secure money owed, easements grant another party a right of use, and restrictive covenants and zoning limit what may be done with the land. A title search is what reveals them, and unresolved encumbrances either block a sale or are settled out of the proceeds at closing.

EndowmentStocks

An endowment is a permanent pool of donated assets held by an institution such as a university, hospital or foundation, invested to generate income that supports operations while the capital is preserved for future years. A spending policy governs withdrawals, commonly a percentage of a multi-year average of market value, which smooths the amount released when markets move. Donor restrictions on individual gifts limit what the income may fund, so the pool is tracked as many separate funds.

Equated Monthly Installment(EMI) Stocks

An equated monthly installment is the fixed payment a borrower makes each month on an amortizing loan, covering both interest and principal so the balance reaches zero at the end of the term. It equals the principal multiplied by the monthly rate and by one plus that rate raised to the number of months, divided by the quantity one plus the rate raised to the number of months, minus one. Early payments are mostly interest and later ones mostly principal.

Equity FinancingStocks

Equity financing raises money by selling an ownership stake rather than by borrowing, so the provider receives a claim on residual profits and usually voting rights, instead of a contractual right to interest and repayment. There is no repayment schedule and no default risk from the funding itself, which suits businesses with uncertain cash flows. The cost is dilution of existing owners' proportionate claim and, because equity ranks last in insolvency, a higher required return than lenders demand.

Equity MethodStocks

The equity method accounts for an investment where the investor has significant influence over the investee but does not control it, a threshold usually presumed between twenty and fifty per cent of voting rights. The investment starts at cost and is then increased by the investor's share of the investee's profit and decreased by dividends received and by its share of losses. Only that single share of profit reaches the income statement; the investee's revenues, costs and debt are not consolidated.

Estate PlanningStocks

Estate planning is the process of arranging in advance how a person's assets, obligations and dependants will be handled at incapacity and at death. Components typically include a will, beneficiary designations on retirement accounts and insurance, ownership titling, trusts where continuing control or probate avoidance matters, and powers of attorney for financial and healthcare decisions. Rules on validity, probate and transfer taxes are set by jurisdiction and change, which is why documents are periodically reviewed rather than written once. Full guide →

EuroclearStocksCrypto

Euroclear is an international central securities depository, based in Brussels, that holds securities in book-entry form and settles trades between its participants by moving entries between accounts rather than moving certificates. It settles international bonds, equities and funds across many markets and currencies, provides collateral management and securities lending, and operates national depositories in several European countries. Its main competitor in international debt settlement is Clearstream, and links between the two allow positions to move across.

Excess Cash FlowStocks

Excess cash flow is a defined term in a credit agreement measuring cash the borrower generated beyond what it needed for operations, interest, scheduled debt payments, taxes and permitted capital spending. The agreement requires a stated percentage of it to be applied to prepaying the loan, a mechanism known as a cash sweep, with the percentage often falling as leverage declines. Because everything turns on the definition, negotiation focuses on which deductions and add-backs the calculation allows.

ExecutionStocksCrypto

Execution is the completion of an order to buy or sell, the point at which a trade is agreed and becomes binding on both sides. Quality is measured against benchmarks such as the price at the moment of arrival, the volume-weighted average price over the interval, or the best quote available across venues, and the shortfall between the decision price and the achieved price is implementation shortfall. Brokers handling client orders carry a regulatory duty to seek the best available terms.

Expiration TimeOptionsStocks

Expiration time is the point on the expiration date after which an option can no longer be exercised. It is not the same as the close of trading: an option may stop trading at the market close while the clearing house still accepts exercise instructions from brokers for a period afterward, which lets holders act on news released after the bell. Contract specifications and clearing house rules set both cut-offs, and they differ between equity, index and futures options.

External DebtStocks

External debt is the portion of a country's borrowing owed to non-residents, covering government, bank and corporate obligations, whether denominated in a foreign currency or in the local one. It matters more than total debt for crisis analysis because repayment requires foreign exchange, which the borrower's own central bank cannot create. Standard warning measures compare it with exports, with gross domestic product, and with reserves, and separate short-term maturities falling due within a year from longer obligations.

Edge Act BankStocks

An Edge Act bank is a United States banking corporation chartered by the Federal Reserve under the Edge Act to conduct international banking and financing operations. The charter lets a domestic bank hold a subsidiary that finances trade, takes deposits related to international transactions, and holds equity stakes in foreign companies, activities United States banks are otherwise restricted from undertaking directly. Edge corporations may operate across state lines for international business, which mattered more before interstate branching was liberalized. They remain supervised by the Federal Reserve.

Efficient PortfolioStocksCrypto

An efficient portfolio offers the highest expected return available for its level of risk, or equivalently the lowest risk for its expected return. Plotting every attainable combination of assets in expected return and standard deviation space produces a region whose upper-left boundary is the efficient frontier, and only portfolios sitting on that boundary are efficient. Anything below it is dominated, since another mix delivers more return for the same risk. The inputs are expected returns, variances and covariances, and small errors in those estimates move the frontier substantially.

Electronic BankingStocks

Electronic banking is the delivery of banking services through digital channels rather than at a branch counter: online and mobile account access, electronic funds transfer, direct debits, card networks, automated teller machines, and application programming interfaces that let third-party services initiate payments. It cuts the cost per transaction sharply, which changes bank economics and competitive structure. It also shifts the risk profile toward fraud, authentication failure, operational outage and cyber attack, and supervisors set specific expectations for resilience and customer authentication.

Eligible SecuritiesStocks

Eligible securities are instruments that satisfy the criteria of a specific rule or facility and may therefore be used for a defined purpose. A central bank publishes a list of collateral eligible for its lending operations, defined by issuer type, credit quality, currency and maturity, with haircuts by category. Money market fund rules define which short-term instruments a fund may hold by credit quality and maturity. Because eligibility determines demand, a decision to add or remove a class of assets from such a list moves the price of those assets.

EmbargoStocksCrypto

An embargo is a government prohibition on trade with a particular country or entity, or in a particular category of goods, imposed for foreign policy or national security reasons. It can be comprehensive, blocking nearly all commerce with a target, or targeted at specific sectors such as arms, energy technology or financial services. Companies must screen counterparties against sanctions lists, and breaches carry substantial penalties. In publishing, the same word describes an agreed time before which information such as an economic release may not be reported.

Employee BuyoutStocks

An employee buyout is a transaction in which a company's workforce acquires a controlling stake in the business. It is commonly structured through an employee stock ownership plan, a trust that borrows to buy the shares and repays the loan from company cash flow while allocating shares to employee accounts over time, or through an employee ownership trust holding the stake indefinitely. Owners of private companies use it as a succession route. United States tax rules give qualifying plans specific treatment, and the leverage taken on is a genuine risk to the business.

EntrepreneurStocksCrypto

An entrepreneur is a person who organizes capital, labor and ideas into a new venture and bears the residual risk of the outcome. The return is whatever remains after contracted claims such as wages, rent, supplier invoices and interest have been paid, which is why the position is described as the residual claimant. That structure explains both the concentration of wealth in successful ventures and the high failure rate, since the entrepreneur absorbs losses first. Venture capital and angel investing exist to share that risk for a share of the equity.

Equitable InterestStocks

An equitable interest is a beneficial right in property recognized by principles of equity rather than by legal title. Where assets are held in trust, the trustee holds legal title while the beneficiary holds the equitable interest and is entitled to the benefit of the property. The distinction matters in insolvency, because assets held on trust for someone else are generally not available to the trustee's own creditors, and it underpins custody arrangements in which a custodian holds securities that legally belong to its clients.

equity riskStocksCrypto

Equity risk is the chance that the market value of shares falls, reducing the value of a holding. It arises from changes in expected corporate earnings, in the discount rate investors apply to those earnings, and in sentiment, and it cannot be removed by simply holding more stocks, because a common market component affects nearly all of them at once. Analysts measure it with the standard deviation of returns, with beta against a broad index, or with a drawdown statistic. It is the exposure for which the equity risk premium is the expected compensation.

Euro Overnight Index AverageStocks

The Euro Overnight Index Average, known as EONIA, was the benchmark for unsecured overnight lending between euro area banks, calculated as a volume-weighted average of the rates a panel of banks reported on their overnight loans. The European Central Bank computed and published it each business day, and it served as the floating reference for euro overnight index swaps and for discounting euro derivative cash flows. Administration later changed so that it was derived from the euro short-term rate plus a fixed spread, and the benchmark was discontinued once contracts had migrated to that replacement rate.

ex-allStocks

A share quoted ex-all trades without any of the benefits currently attached to it, so the buyer receives none of the pending dividend, rights entitlement, capitalisation issue or other distribution. The seller keeps every one of them. Exchanges mark a line ex-all on the first day the shares change hands under those terms, and the quoted price normally falls by roughly the combined value of what has been stripped out. It is the broadest of the ex markers: ex-dividend, ex-rights and ex-capitalisation each remove only one entitlement, while this removes all of them together.

ExchequerStocks

The Exchequer is the United Kingdom government's central account, held at the Bank of England, into which tax receipts are paid and out of which public spending is met. The Chancellor of the Exchequer is the minister responsible for it and for fiscal policy generally, while day to day management of receipts, borrowing and cash balances runs through HM Treasury and the Debt Management Office. The name survives from the chequered cloth medieval officials used as a counting board when reckoning royal accounts.

exempt securityStocksCrypto

An exempt security may be offered and sold without registration under the Securities Act of 1933, because the statute or a rule places it outside the registration requirement. United States examples include Treasury and agency obligations, municipal bonds, most bank-issued securities and certain insurance contracts. The exemption is narrower than it looks: antifraud provisions still apply, brokers still owe suitability and disclosure duties, and a security exempt from one statute may still be regulated under another. Exempt status attaches to the instrument itself, unlike an exempt transaction, which depends on how a particular sale is conducted.

exogenous liquidityStocks

Exogenous liquidity is the part of an asset's trading liquidity set by the market as a whole and faced identically by every participant: the typical bid-ask spread, the quoted depth and the turnover available in normal conditions. It contrasts with endogenous liquidity, the extra cost a specific investor creates by trying to move a position that is large relative to normal volume. Liquidity-adjusted risk models add an exogenous cost term built from the average and volatility of the spread, then add an endogenous term only for positions big enough to move prices themselves.

expected valueOptionsStocks

Expected value is the probability-weighted average of every possible outcome of an uncertain quantity. For a discrete set of outcomes it is the sum of each outcome multiplied by its probability, so a payoff of 100 with probability 0.3 and nothing otherwise has an expected value of 30. It describes the long-run average over many repetitions rather than what happens once, and it says nothing about dispersion, which is why measures such as variance are reported alongside it. In derivatives pricing the expected payoff is taken under a risk-neutral probability measure and then discounted to today.

expense loadingStocks

Expense loading is the portion of an insurance premium added to cover the insurer's cost of doing business rather than expected claims. It absorbs commissions, underwriting and policy issue costs, premium taxes, general overhead and a margin for profit and contingencies. Actuaries usually apply it by dividing the pure premium, which is the expected loss cost per unit of exposure, by one minus the expense ratio, grossing the rate up so expenses are recovered as a percentage of the final premium. A higher loading raises the price a policyholder pays without changing expected claims.

Export-Import BankStocks

The Export-Import Bank of the United States is the federal export credit agency, supporting sales of American goods and services abroad by guaranteeing or insuring loans to foreign buyers and by lending directly where private financing is unavailable. It charges fees and interest, and its exposure is backed by the United States government, so it acts as a financier of last resort for exports rather than a competitor to commercial banks. Congress periodically reauthorises the institution and sets limits on its total exposure. Most large exporting countries operate a comparable agency.

exposed to the marketStocksCrypto

An order is exposed to the market when it is displayed or offered to other participants so they have a chance to trade with it or to improve its price, rather than being matched immediately against a broker's own inventory or a paired customer order. Exchange rules and best-execution duties require exposure in defined cases, for example before a broker crosses two of its own customer orders. Exposure gives the order a chance at price improvement and gives the market information, at the cost of revealing trading intent to others.

extendible swapOptionsStocks

An extendible swap is an interest rate swap in which one party holds the right to extend the contract beyond its original maturity on terms fixed at the outset. The holder of that right will use it only when the original fixed rate has become favourable compared with rates available at the extension date, so the option has value and is paid for through an off-market fixed rate during the initial period. It is priced as a plain swap plus a swaption on a forward-starting swap, and it lets a borrower lock a rate for a core period while keeping the choice to hold it longer.

economic sanctionsStocksCrypto

Economic sanctions are restrictions one government or group of governments places on trade, financial transactions or asset ownership involving a targeted country, entity or individual, used as an instrument of foreign policy. Typical measures include asset freezes, bans on dealing with named parties, export controls on specific goods and restrictions on access to payment systems. In the United States the Treasury's Office of Foreign Assets Control administers most programmes and publishes lists of blocked persons. Financial firms screen clients and payments against those lists, and breaches can bring penalties regardless of intent, so screening is a standing control rather than a one-off check.

exercise multipleOptionsStocks

The exercise multiple is the ratio of a company's share price at the moment an employee exercises a stock option to the option's exercise price. A multiple of two means employees have historically exercised once the shares were worth twice what they pay for them. Companies estimate it from their own exercise history and feed it into lattice models used to value share-based payments, because it captures early exercise behaviour that a standard closed-form calculation assumes away. A higher assumed multiple implies employees hold longer, which raises the reported grant-date fair value of the award.

export creditStocks

Export credit is financing arranged to support a cross-border sale, either as a loan to the foreign buyer so it can pay the exporter promptly, known as buyer credit, or as payment terms the exporter grants the buyer that are then financed or insured at home, known as supplier credit. Government export credit agencies guarantee or insure much of it, covering commercial default and political risks such as expropriation or currency transfer restrictions. Officially supported credit is constrained by an OECD arrangement setting minimum premium rates and maximum repayment periods, which limits subsidy competition between exporting countries.

Earned PremiumStocks

The share of an insurance premium that corresponds to coverage the insurer has already provided. Premiums are collected in advance and first recorded as an unearned premium liability, then recognized as revenue in proportion to the time elapsed or the exposure run off, so half a one-year policy's premium is earned at the six-month point. It is the denominator of the loss ratio, since incurred losses must be compared with the premium for the same period of coverage rather than with cash received.

Earnings Credit RateStocks

A notional rate a bank applies to a business customer's collected balances to offset account service charges instead of paying interest in cash. The bank multiplies qualifying balances by the rate over the statement cycle, and the resulting soft-dollar credit is set against fees billed for services such as wires, lockbox, and account maintenance. Any credit beyond the fee total is normally forfeited rather than carried forward or paid out. Banks set the rate at their own discretion, and it typically moves with short-term money market yields.

Eclectic Paradigms(eclectic paradigm, OLI framework) Stocks

A framework developed by John Dunning explaining when a firm will serve a foreign market through direct investment rather than by exporting or licensing. Three advantages must be present together: ownership, meaning a proprietary asset such as a brand, patent, or process; location, meaning something about the host country such as market access, input costs, or trade barriers; and internalization, meaning the activity is worth more kept in-house than sold to a local partner. Where ownership advantages exist but internalization does not, licensing is the predicted route.

Economic ValueOptionsStocks

The measure of benefit a good, service, or asset delivers to a person or business, usually expressed as the most they would be willing to give up to obtain it. It differs from market price, which is where the marginal buyer and seller happen to meet, and the gap between the two is consumer surplus. In corporate finance the phrase also describes the present value of the future cash flows an asset is expected to produce, which is why a business can be worth materially more or less than the book value of its net assets.

Economic goodStocksCrypto

Any item that is scarce, meaning people would want more of it at a price of zero than exists, so acquiring it requires giving something else up. That scarcity is what gives it both a price and an opportunity cost. It contrasts with a free good such as air in open space, which is abundant enough that no one need be denied it. Economic goods include physical products, services, and rights, and they may be private, meaning one person's use excludes another's, or shared to varying degrees.

EconomicsStocksCrypto

The study of how people, firms, and governments allocate scarce resources among competing uses, and of what follows from those choices. It divides into microeconomics, which examines individual decisions, prices, and the behaviour of particular markets, and macroeconomics, which examines aggregates such as output, employment, inflation, and interest rates. Its recurring tools are opportunity cost, marginal analysis, and equilibrium: weighing what one more unit of something costs against what it delivers, and asking what condition leaves no participant wanting to change behaviour.

EconomyStocksCrypto

The system through which a population produces, distributes, and consumes goods and services, usually bounded by a country and summarized by aggregates such as output, employment, prices, and trade. Systems differ mainly in how resources get allocated: by prices arising from voluntary exchange in a market economy, by administrative direction in a command economy, or by some mixture, which describes nearly every real case. Gross domestic product is the standard size measure, and its growth rate, together with unemployment and inflation, is how condition is judged.

Effective DatesStocksCrypto

The date from which a registration statement, contract, insurance policy, regulation, or corporate action carries legal force. For a securities offering it is the date the Securities and Exchange Commission declares the registration statement effective, after which sales may be confirmed. For insurance it is when cover begins, regardless of when the application was signed. It is deliberately separate from the announcement date, the signature date, and the settlement date, because rights and obligations often start on a different day from the one on which the document was agreed.

Effective Interest MethodStocks

An amortization technique that spreads a bond's discount or premium across its life so that recorded interest in each period equals the carrying amount at the start of that period multiplied by the market yield at issue. The difference between that interest expense and the cash coupon adjusts the carrying amount toward par. Because the carrying amount changes every period, so does the expense, unlike straight-line amortization which books an identical figure each time. Both US GAAP and IFRS require it for most debt instruments precisely because it holds the yield constant.

Elastic currencyStocksFutures

A money supply able to expand and contract with the economy's demand for currency and credit rather than being fixed by a rigid reserve formula. Providing one was a stated purpose of the Federal Reserve Act of 1913, after seasonal demand for cash to move crops and periodic bank runs repeatedly drained reserves under the earlier national banking system and turned local shortages into panics. Elasticity comes from a central bank able to lend against collateral and to buy and sell securities, adding or draining reserves as conditions require.

Electronic FilingStocks

Submitting a tax return or regulatory report to an authority in a structured digital format rather than on paper. The filer transmits through approved software, the receiving system validates the file's structure and arithmetic, and it returns an acceptance or rejection notice that serves as the record of filing. Faster processing, quicker refunds, and fewer transcription errors are why authorities encourage it, and many filers above a size threshold are required to use it. Corporate disclosure works the same way through the SEC's EDGAR system.

Equation of ExchangeCrypto

An accounting identity linking money to spending: M times V equals P times Q, where M is the quantity of money, V is velocity, meaning how many times an average unit is spent in a period, P is the price level, and Q is real output. It holds by construction, since every payment is also a receipt. It becomes the quantity theory of money only when velocity and real output are treated as roughly stable, which turns it into the claim that money growth passes through to prices. Token valuation models borrow the same identity to relate network transaction volume to token price.

ErosionStocks

A gradual loss of value, sales, or taxable income to a competing force. In capital budgeting it names the cash flow an existing product loses when the same company launches a new one, and that lost cash flow must be charged against the new project rather than ignored, otherwise the project looks better than it is. In tax policy, base erosion describes profit shifted out of a jurisdiction through interest, royalties, or transfer pricing. In funds, the word describes value steadily consumed by fees, spreads, or decay.

EscrowStocks

An arrangement in which a neutral third party holds money, documents, or assets and releases them only when conditions agreed in advance by both sides are met. Because the holder is bound by written instructions rather than by either party's wishes, neither side can seize the asset unilaterally, which lets strangers transact without trusting each other. It is standard in property sales, where funds and title documents change hands simultaneously, in mergers, where part of the price is held back against later claims, and in online marketplaces.

Escrowed SharesStocks

Shares placed with an independent agent and barred from sale until conditions in the escrow agreement are met, such as a lock-up period after a listing, achievement of performance milestones by founders, or resolution of indemnity claims following an acquisition. The registered holder usually keeps voting rights and dividends while the shares sit there. Because they cannot be sold, they are excluded from the freely tradable float, so float-adjusted index weights and reported liquidity can differ sharply from total shares outstanding.

Euro Interbank Offer Rate(Euribor) Stocks

A daily benchmark, known as Euribor, showing the rate at which a panel of European banks indicates it can borrow unsecured euro funds from other banks, published for several maturities. The highest and lowest contributions are discarded and the rest averaged. It is administered by the European Money Markets Institute under EU benchmark regulation and has been reformed so that contributions are anchored in actual transactions wherever any exist. It is the reference rate embedded in a large share of euro mortgages, corporate loans, and interest rate swaps.

European Currency UnitStocksFutures

A basket unit of account used by the European Community before the euro, composed of fixed amounts of member state currencies weighted roughly by economic size, so its daily value was the sum of those amounts converted at market exchange rates. It served as the denominator of the exchange rate mechanism, as the unit for the Community budget, and as a denomination for bond issues that spread currency risk across the basket. It was replaced by the euro at a one-for-one conversion when the single currency was introduced in 1999.

Ex-AnteOptionsStocks

Latin for before the event, describing a figure that is a forecast formed before an outcome is known, such as an expected return, expected inflation, or planned investment. Its counterpart, ex-post, is the realized figure measured afterwards. The distinction matters because portfolio models, risk limits, and policy rules are built from ex-ante expectations while results are judged on ex-post outcomes, and the two routinely diverge. Confusing them produces the error of treating a realized average as though it had been the expectation all along.

Exchange Stabilization FundStocks

A reserve account of the United States Treasury, created by the Gold Reserve Act of 1934, that the Secretary of the Treasury may use to buy and sell foreign currencies, gold, and certain securities in order to influence exchange rates and counter disorderly market conditions. It operates without a congressional appropriation, which is what makes it usable at short notice. It has also been used to extend short-term credit to foreign governments and, at times, to provide the loss-absorbing layer behind emergency domestic lending facilities.

Expansionary PolicyStocksCrypto

A policy stance intended to raise aggregate demand, output, and employment. On the monetary side a central bank lowers its policy rate, buys securities, or otherwise adds reserves so credit is cheaper and more plentiful. On the fiscal side a government raises spending or cuts taxes, widening the deficit and putting money into private hands. It is typically used when output sits below potential and unemployment is elevated, and its costs are upward pressure on inflation and, for the fiscal version, a larger public debt to service later.

ExpectationsStocks

Beliefs held by households, firms, and investors about future values of variables such as inflation, interest rates, earnings, or exchange rates, which shape the decisions they take today. Under adaptive expectations people extrapolate from recent experience; under rational expectations they use all available information and err only randomly. Expectations can be self-fulfilling, because wage bargains and price lists set in anticipation of inflation help produce it. Central banks therefore treat survey measures and the inflation compensation priced into index-linked bonds as objects of policy in their own right.

Expenditure MethodStocksCrypto

The route to measuring gross domestic product that adds up spending on final goods and services: household consumption, plus gross private investment, plus government purchases, plus exports minus imports. Imports are subtracted because they already appear inside the other categories but were produced elsewhere. Only final purchases count, so intermediate inputs are excluded to avoid double counting. It is one of three ways of reaching the same total, the others being the income method and the production or value-added method, and gaps between them are reported as statistical discrepancy.

Extraordinary ItemStocks

A gain or loss that was both unusual in nature and infrequent in occurrence, and which accounting rules once required to be shown on its own line, net of tax, below income from continuing operations so readers could exclude it from recurring results. United States standards eliminated the category in 2015 and international standards never permitted it, so such amounts now sit within continuing operations with disclosure of their nature and size instead. Analysts still make the same adjustment informally when normalizing earnings for valuation.

EDS(Equity Default Swap) Stocks

Equity default swap, a credit-style contract whose payout is triggered by a large fall in a company's share price rather than by a bond default. The buyer pays a periodic premium, and if the stock closes below a stated barrier, commonly a set fraction of its level at inception, the seller pays a fixed recovery-style amount. It was marketed as a way to express deep equity downside in a format that structured credit desks could model, rate and tranche alongside credit default swaps.

ElbowStocks

The maturity point at which a yield curve's slope changes most sharply, marking the transition between the steeper short end and the flatter long end. Traders identify it by maturity and structure curve trades around it: barbell and butterfly positions are set relative to that point, and hedge ratios calculated on a parallel-shift assumption break down when the curve pivots there instead of moving uniformly. Its location shifts with policy expectations, so it is an observation about the current curve rather than a fixed feature.

Emissions TradingStocksCrypto

A regulatory system in which an authority caps total permitted emissions, issues or auctions allowances covering that cap, and lets participants buy and sell them. Each covered entity must surrender allowances matching its measured emissions for the compliance period, so a firm that can abate cheaply sells surplus allowances to one facing higher abatement costs. The traded allowance price signals the marginal cost of abatement across the covered sector, and tightening the cap over time is the mechanism intended to reduce total emissions.

Equity TrancheStocks

The most junior claim in a securitisation or collateralised debt structure, absorbing the first losses on the underlying pool before any other tranche is affected. It receives whatever cash remains after senior and mezzanine claims are paid, so its return is highly leveraged to the pool's default and recovery experience. It usually carries no rating, is often retained by the sponsor to align incentives, and can be written down to nothing while the senior notes above it still pay in full.

Errors and OmissionsStocksCrypto

Professional liability insurance covering claims that a firm or individual gave faulty advice, made a mistake, or failed to perform a professional duty, causing a client financial loss. Policies are usually written on a claims-made basis, so cover responds to claims reported during the policy period rather than to when the work was done, and a retroactive date limits how far back covered work extends. Defence costs are frequently paid from within the limit rather than in addition to it.

EURONIAStocks

A euro overnight interest rate benchmark calculated as the weighted average of unsecured euro overnight deposit trades arranged through London wholesale money brokers. It was compiled by the brokers' association as the euro counterpart to the sterling SONIA measure, using actual brokered transactions rather than submitted quotes. Euro overnight benchmarking has since consolidated around the European Central Bank's own transaction-based rate, so this measure now matters mainly for interpreting legacy contracts that still reference it.

European TermsStocksFutures

A foreign exchange quoting convention stating the number of units of another currency per one United States dollar. A quote of 1.35 in this convention means 1.35 units of the other currency buy one dollar. It is the opposite of American terms, which price one unit of the foreign currency in dollars, and the two are reciprocals of one another. Most interbank pairs are quoted this way, with sterling, the euro, the Australian dollar and the New Zealand dollar as the usual exceptions.

Ex-WarrantStocks

A trading status meaning the buyer of a security does not receive an attached warrant that is being detached or distributed; the seller keeps it. Quotation systems often flag it with the marker XW. From the ex-warrant date onward the quoted price reflects only the underlying security, so it typically falls by roughly the market value of the detached warrant. The opposite status, cum warrant, means the warrant transfers with the security to the buyer.

ExecutorStocks

The person or institution named in a will to administer a deceased person's estate. Duties typically include obtaining legal authority from the probate court, identifying and safeguarding assets, notifying account providers and transfer agents, settling debts and taxes owed by the estate, and distributing what remains to the beneficiaries named in the will. Brokerage and retirement accounts are retitled or transferred on that authority, except where a beneficiary designation causes the asset to pass outside the will entirely.

Experience RefundStocks

A return of part of the premium to a policyholder or ceding insurer when actual claims over the contract period come in below the level assumed in pricing. The contract sets the formula: premium less incurred losses and an agreed expense allowance, with a stated share of any remainder returned. It is common in group insurance and in reinsurance treaties, and it converts part of the arrangement into profit sharing rather than pure risk transfer, which reduces the insurer's upside as well as the buyer's cost.

Extendible OptionOptionsStocks

An option giving one party the right to extend the contract beyond its original expiry, usually for a further fixed period and often at a revised strike or for an additional fee. The holder version lets a buyer keep exposure alive when the contract is near the money at first expiry instead of letting it lapse. Because the extension right is itself optionality, the structure is valued as a compound option and costs more than the equivalent single-expiry contract.

European optionOptionsStocks

An option that can be exercised only at expiry, not on any earlier date. The restriction makes valuation tractable: the closed-form Black-Scholes formulas describe this exercise style, and the price equals the discounted expected payoff under a risk-neutral measure. Because early exercise is impossible, such an option is never worth more than an otherwise identical American-style contract, and the gap between them widens with dividends or carry. Most cash-settled index options and interbank currency options use this style.

Exchange OptionOptionsStocks

An option to swap one asset for another rather than to buy or sell an asset for cash. The payoff at expiry is the greater of zero and the value of the asset received minus the value of the asset given up. Margrabe showed it can be valued with a Black-Scholes-style formula in which the relevant volatility is that of the ratio of the two assets, so the correlation between them drives the price directly. Stock-for-stock merger terms and best-of structures embed this payoff.

ExogenousStocksCrypto

Determined outside the model rather than by it. An exogenous variable is taken as a given input, while an endogenous variable is solved for within the system. The distinction matters for inference: treating something as external when it actually responds to the modelled outcome biases the estimated relationship, which is why instrumental variables and natural experiments are used to isolate variation that is plausibly independent. In risk work, a shock imposed on a model from outside its historical data is described the same way.

Expenditure taxStocks

A tax whose base is what a person consumes rather than what they earn. In its direct form the base is income less net saving, so amounts set aside and the returns on them are untaxed until spent; in indirect form the same aim is pursued through sales taxes or value added tax. Removing saving from the base is what avoids taxing the return to deferred consumption. Rates, thresholds and exemptions are set by the relevant national legislature and revised periodically.

eCashStocks

An electronic payment system devised by the cryptographer David Chaum and commercialized through DigiCash in the 1990s, in which a bank issued digital tokens that could be spent without revealing the payer's identity. Blind signatures let the bank certify a token as valid while remaining unable to link it to the account that withdrew it. The company failed commercially, but the design influenced later work on digital cash and privacy-preserving cryptocurrency.

Early AdopterStocks

A customer or investor who takes up a product or technology soon after launch, before mainstream evidence of its value exists. In diffusion of innovation models this group follows the small innovator segment and matters disproportionately because its endorsement legitimises the product for the larger market behind it. Early adopters accept higher prices, immature features and the risk that the product is withdrawn, in exchange for the advantage of using it first.

EarmarkingStocks

Designating revenue for a specific purpose so it cannot be spent on anything else, as with fuel duty allocated to road maintenance or a levy dedicated to a health fund. It builds political support for a tax by naming the beneficiary and shields a programme from annual budget competition. The cost is rigidity: dedicated funds can accumulate unspent while other priorities go short, and governments often blunt the effect by cutting general funding to the same programme.

Earned IncomeStocks

Compensation received for personal services, including wages, salaries, tips, commissions, bonuses and net earnings from self-employment. The distinction matters because payroll taxes apply to it, contributions to individual retirement accounts require it, and several credits are calculated from it. Investment returns, pensions, annuities, unemployment benefits, alimony and rental income are unearned. United States rules define the boundary separately for each provision, so an item can count for one rule and not another.

Earnings ManagementStocks

The use of accounting judgement and transaction timing to steer reported profit toward a desired figure. Accrual-based techniques adjust provisions, revenue cut-off, reserve releases and impairment timing. Real activities management shifts actual decisions instead, cutting discretionary research or marketing spending, or offering end-of-quarter discounts to pull sales forward. Some of it stays within reporting standards and some crosses into fraud, and both distort the earnings series analysts extrapolate from.

Economic CycleStocksCrypto

The recurring pattern of expansion and contraction in aggregate output, employment and income around a longer-term trend, with phases labelled expansion, peak, contraction and trough. Cycles are irregular in length and depth rather than periodic, and are dated after the fact by committees examining production, employment and income data. Sectors respond differently: consumer staples and utilities stay comparatively stable while capital goods, housing and advertising swing hardest.

Economic GrowthStocksCrypto

The increase in an economy's output of goods and services over time, measured as the percentage change in real gross domestic product, or per head when comparing living standards. Growth accounting attributes it to more labour, more capital per worker, and total factor productivity, which captures improvements in how inputs are combined. Only productivity gains raise output per hour indefinitely, since adding capital to a fixed workforce runs into diminishing returns.

Economic Order Quantity(EOQ) Stocks

The order size minimising the combined ordering and holding costs for an item with steady demand. It equals the square root of two times annual demand times the cost per order, divided by the annual holding cost per unit. Larger orders spread fixed ordering cost over more units but tie up more capital in stock, and the formula locates where the two cost curves cross. It assumes constant demand, fixed lead time and no quantity discounts.

Economic RentStocksCrypto

Payment to a factor of production above the minimum needed to keep it in its current use, which is its opportunity cost. Land earns it because supply is fixed, and it also arises from scarce talent, licences, patents and network positions. Because the payment calls forth no extra supply, taxing pure rent does not reduce output, which is the argument behind land value taxation. Rent-seeking describes effort spent capturing such payments rather than producing output.

Economic ShockStocks

An unexpected event that pushes output, prices or employment away from their prior path. Supply shocks such as an oil embargo, a harvest failure or a pandemic disrupting production raise prices while reducing output, forcing a policy trade-off. Demand shocks such as a collapse in confidence or a sudden fiscal expansion move output and prices in the same direction. Shocks are classified by persistence, since a temporary disturbance calls for a different response than a permanent one.

Economic StimulusStocks

Deliberate government action to raise aggregate demand when output sits below capacity, using fiscal tools such as spending increases, transfers and tax cuts, or monetary tools such as lowering policy rates and purchasing assets. Effectiveness depends on the multiplier, on how much of the money is saved or spent on imports, and on how quickly measures reach recipients. Stimulus delivered when an economy is already near capacity tends to raise prices rather than real output.

Economic equalityStocksCrypto

A distribution in which incomes, wealth or consumption are spread evenly across a population. It is measured by summary statistics such as the Gini coefficient, the income shares held by the top and bottom deciles, and ratios between percentiles. It differs from equality of opportunity, which concerns whether starting position determines outcome, and it can be measured before or after taxes and transfers, which usually produces very different pictures of the same country.

Economic equityStocksCrypto

A judgement about whether a distribution or a policy is fair, as opposed to whether it is efficient. Horizontal equity requires people in similar circumstances to be treated alike, and vertical equity requires those with greater capacity to contribute more, which is the reasoning behind progressive taxation. Because fairness is a normative standard rather than a measurable quantity, economists analyse the trade-off against efficiency without claiming to settle where the balance should sit.

Economic stabilityStocksCrypto

A condition in which output grows near potential, inflation stays low and predictable, employment is steady, and the financial system functions without disruption. It is a policy objective rather than a single measurement, tracked through the variance of growth and inflation, the credibility of the monetary anchor, and indicators of financial stress. Stabilisation policy uses interest rates, fiscal settings and macroprudential tools, and stability in one dimension is sometimes bought at the cost of another.

Electronic Bill Payment and Presentment(EBPP) Stocks

A service delivering a bill to a customer electronically and collecting the payment through the same channel. In the biller-direct model the customer views and pays on the biller's own site. In the consolidator model a bank or aggregator gathers bills from many billers into one place. It removes print and postage cost, shortens the collection cycle by eliminating mail float, and produces structured remittance data that reconciles automatically against receivables.

Electronic Fund Transfer Act(Regulation E) Stocks

A United States federal law setting the rights and liabilities of consumers using electronic payment services, including debit cards, direct deposits, automated teller machines and automated clearing house transfers. Implemented through Regulation E, it requires disclosure of terms, receipts and periodic statements, sets procedures and deadlines for investigating claimed errors, and caps a consumer's liability for unauthorised transfers on a sliding scale that depends on how quickly the loss is reported.

Electronic MoneyStocksFutures

Monetary value stored electronically, issued on receipt of funds, redeemable at par, and accepted as payment by parties other than the issuer. In the European Union and United Kingdom, electronic money institutions are licensed separately from banks and must safeguard customer funds rather than lend them, so balances are not deposits and carry no deposit insurance. Prepaid cards and many payment app balances are issued under this framework rather than by a bank.

Elements of a contractStocksCrypto

The components a common law court requires before treating an agreement as binding: an offer, an acceptance matching that offer, consideration moving each way, an intention to create legal relations, certainty of terms, and capacity of the parties. Some agreements additionally require writing and signature under statute, such as transfers of land and guarantees. An agreement failing one element may still create obligations through other doctrines, but it is not enforceable as a contract.

Emergency Banking Act of 1933Stocks

United States legislation passed within days of the bank holiday declared in March 1933. It validated the closures, gave the Treasury authority to reopen banks only after examiners found them sound, allowed the Reconstruction Finance Corporation to inject capital by buying preferred stock, and widened Federal Reserve lending against additional collateral. Reopening only solvent institutions restored confidence quickly and deposits returned. The Banking Act later that year added federal deposit insurance.

EncroachmentStocks

A physical intrusion of one owner's structure onto neighbouring land, such as a fence, wall, roof overhang, driveway or tree. It clouds title because the affected owner can sue for removal or damages, and a long-standing intrusion may ripen into a prescriptive easement or, in some jurisdictions, adverse possession. A boundary survey is what reveals it, which is why lenders and title insurers require one and why such problems usually surface during a sale.

Energy Return on Investment(EROI) FuturesStocks

The ratio of usable energy delivered by an energy source to the energy consumed in obtaining and delivering it. A ratio of one means the process merely breaks even, and a society needs a surplus well above that to support activity beyond energy production itself. Measurement boundaries drive the number: including refining, transport and the energy embodied in equipment lowers the ratio, so figures computed on different boundaries cannot be compared.

Enterprise Resource PlanningStocks

Integrated software running a company's core transactional processes on one shared database, spanning finance, procurement, inventory, manufacturing, order management, projects and human resources. A single record means an order updates stock, receivables and the general ledger simultaneously, removing reconciliation between separate systems. Implementations are costly and disruptive because they force process standardisation, and heavy customisation is what makes later upgrades expensive.

Equal Credit Opportunity Act(ECOA) Stocks

A United States federal law prohibiting creditors from discriminating in any part of a credit transaction on the basis of race, colour, religion, national origin, sex, marital status, age, or because income comes from public assistance or the applicant has exercised rights under consumer credit law. Implemented through Regulation B, it requires creditors to give applicants a specific statement of reasons for an adverse action and restricts what information may be requested.

Equilibrium QuantityStocks

The amount bought and sold where quantity demanded equals quantity supplied, so no pressure remains for price to change. It is read off the intersection of the demand and supply curves together with the equilibrium price. A shift in either curve moves it: an increase in demand raises both quantity and price, while an increase in supply raises quantity and lowers price, which is how the direction of a shift can be inferred from observed data.

Equity-Efficiency TradeoffStocksCrypto

The tension between distributing economic output more evenly and maximising its total size. Redistribution through progressive taxes and transfers reduces inequality but can weaken incentives to work, save and invest, so the pie may shrink as it is shared more evenly. Arthur Okun described the transfer mechanism as a leaky bucket, since administration and behavioural responses mean less arrives than departs. How large that leak actually is remains an empirical dispute.

Equivalent Annual Cost(EAC) Stocks

The constant annual charge having the same present value as owning and operating an asset over its whole life, found by dividing the present value of all costs by the annuity factor for that life and discount rate. It makes assets with different lifespans comparable, since a cheap machine replaced every three years can cost more per year than an expensive one lasting ten. It also identifies when replacing an ageing asset becomes cheaper than keeping it.

EscheatStocks

The transfer of property to the state when no owner or heir can be found. In modern practice it mainly covers unclaimed financial property: dormant bank accounts, uncashed checks, unclaimed insurance proceeds and abandoned securities positions must be reported and remitted to a state after a dormancy period fixed by statute. Owners can usually reclaim the value indefinitely from the state's unclaimed property office, though shares are often liquidated before transfer.

Event StudyStocks

An empirical method measuring the effect of a specific event on a security's price by comparing actual returns around the event with the returns a model predicts would have occurred without it. The difference is the abnormal return, cumulated across a defined window and averaged across many events to separate signal from noise. It is used to test market efficiency and to quantify how markets react to earnings, merger announcements, regulation and litigation.

Ex-PostStocksCrypto

Measured after the fact, using outcomes that have actually been realised, as opposed to ex-ante, which refers to expectations formed beforehand. Realised return, realised volatility and realised correlation are all quantities computed from a price history, and they can differ substantially from the expected values used in the original allocation decision. Judging a decision purely on its realised result confuses the quality of the reasoning with the outcome that happened to occur.

Excess of Loss ReinsuranceStocks

A contract under which the reinsurer pays the portion of a loss above an agreed retention up to a stated limit, so the ceding insurer keeps everything below the attachment point. It can apply per risk, per occurrence such as a single windstorm, or in aggregate across a period. Premium is a negotiated amount rather than a share of the original premium, which distinguishes it from proportional treaties where losses and premiums are split by fixed percentage.

Exchange RateStocksFutures

The price of one currency in terms of another, quoted as the amount of the quote currency needed to buy one unit of the base currency. Spot rates settle within the market's standard cycle, and forward rates for later dates are derived from the spot rate and the interest rate differential between the two currencies. Regimes range from free floating, where the market clears, to pegged and managed arrangements maintained by central bank intervention.

Exchange RatioStocksCrypto

The number of acquirer shares offered for each target share in a stock-financed merger. A fixed ratio locks the share count, so the value received moves with the acquirer's price between announcement and closing, leaving the target's holders exposed to that price. A fixed value structure instead adjusts the ratio at closing to deliver an agreed amount, shifting dilution risk to the acquirer. Collars cap how far either arrangement can move.

ExemptStocks

Not subject to a tax, registration requirement or regulatory obligation that would otherwise apply. Municipal bond interest can be free of federal income tax, a charitable organisation can be outside tax on its qualifying activity, and a securities offering can avoid registration where it meets conditions on investor type, amount and solicitation. The status always comes from a specific statutory provision, so it applies only to the obligation that provision names and not to others.

Exempt TransactionStocks

A securities sale that does not require registration with the regulator because it falls inside a statutory exemption, such as a private placement to accredited investors, an intrastate offering, a limited offering under a small-issue rule, or ordinary secondary trading by someone who is not an issuer, underwriter or dealer. Antifraud provisions still apply in full, resale is usually restricted, and the issuer normally must file a notice of the offering.

Exempt propertyStocks

Assets a debtor may keep out of reach of creditors in bankruptcy or judgment enforcement. United States debtors use either a federal list or their state's list where the state has opted out, typically protecting equity in a home up to a homestead limit, a vehicle, tools of a trade, household goods, and most retirement accounts. Categories and amounts are set by statute, differ sharply between states, and are periodically adjusted for inflation.

Expanded Accounting EquationStocks

A restatement of assets equals liabilities plus equity that breaks the equity term into its sources: contributed capital, plus revenue, minus expenses, minus dividends or owner withdrawals, plus retained earnings brought forward. Writing it this way shows why income statement accounts are temporary, since they feed equity and are closed into retained earnings at period end. It is the structure behind the double-entry rules for which accounts increase with a debit and which with a credit.

Expedited Funds Availability Act(Regulation CC) Stocks

A United States law requiring depository institutions to make deposited funds available within set timeframes and to disclose their availability policy. Implemented through Regulation CC, it separates cash, government checks and electronic payments, which clear fastest, from other checks carrying longer holds, and permits extended holds in defined exception cases such as new accounts, unusually large deposits and repeated overdrafts. The dollar thresholds are adjusted for inflation by the Federal Reserve.

Explicit CostCrypto

A cost involving an actual payment recorded in the accounts, such as wages, rent, materials, interest and taxes. It contrasts with implicit cost, the value of resources the owner already controls and gives up by using them in the business, such as the salary a founder could earn elsewhere or the return on capital tied up in the firm. Accounting profit deducts only the first kind while economic profit deducts both, so a business can be accounting-profitable and economically unprofitable.

Economic CostStocksCrypto

The total cost of a decision including both the money actually spent and the value of the next best alternative given up. Explicit costs are the payments recorded in the accounts; implicit costs are the returns forgone on resources the owner already controls, such as their own labour or capital. Because economic cost includes the implicit part, economic profit is smaller than accounting profit, and a business can be profitable in the accounts while destroying value on this measure.

EIB(European Investment Bank) Stocks

The European Investment Bank, the European Union's long-term lending institution, owned by the member states. It borrows in international capital markets on the strength of its shareholders and lends the proceeds to infrastructure, energy, transport, environmental and small business projects that support EU policy objectives. Because it is a supranational issuer with a very high credit rating, its bonds are widely held as high-quality liquid assets and its issuance is a benchmark for other supranational borrowers.

Electronic Funds TransferStocks

Movement of money between accounts through a computer network rather than by cheque or cash. It covers card payments, direct debits and credits, wire transfers and instant payment schemes. Each transfer carries an instruction identifying the accounts, the amount and the value date, and it settles through a clearing system that nets or individually settles the resulting obligations between the banks. Consumer protection rules in many jurisdictions govern error resolution and liability for unauthorised transfers.

Eligible ReservesStocks

The assets a bank is permitted to count toward a reserve requirement set by its central bank, normally vault cash plus balances held in its account at the central bank. Assets that earn a return but cannot be paid out instantly, such as government securities, are usually excluded, because the requirement exists to ensure immediately available settlement money. Central banks that pay interest on these balances use the rate as a policy tool influencing the whole short-term money market.

EmbezzlementStocks

The fraudulent taking of money or property by someone who was lawfully entrusted with it, such as an employee, trustee or agent. The distinguishing element is that possession was legitimate at the start and the conversion to personal use came afterwards, which separates it from theft. Typical mechanisms include fictitious vendors, payroll ghosts and lapping of customer receipts. Segregation of duties, mandatory leave, independent reconciliation and fidelity bonding are the standard controls against it.

Endowment Assurance PolicyStocks

A life insurance contract that pays out either on the death of the life assured during the term or as a maturity sum if they survive to the end of it. Premiums fund both the death benefit and an investment element, and with-profits versions add periodic bonuses that cannot subsequently be removed plus a possible terminal bonus. Surrendering early usually returns substantially less than the premiums paid, because acquisition costs are front-loaded into the early years.

Endowment MortgageStocks

A United Kingdom home loan arrangement in which the borrower pays only interest to the lender and separately funds an endowment policy intended to repay the capital at the end of the term. Repayment therefore depends on investment returns rather than on scheduled amortisation. Many policies sold in the 1980s and 1990s fell short of the mortgage balance when returns proved lower than the illustrations assumed, producing a large mis-selling redress programme and effectively ending sales of the structure.

Enterprise ZoneStocks

A geographically defined area in which government offers tax and regulatory incentives to attract business investment and employment, typically including relief from property or business rates, allowances for capital spending, credits tied to hiring local workers, and simplified planning rules. Programmes are established by statute with a fixed designation period. Evaluations consistently find part of the reported gain reflects activity relocated from just outside the boundary rather than newly created, which is why designations are usually time-limited and reviewed.

Equity ValuationStocks

Estimating what a company's shares are worth, as distinct from what they currently trade at. Three families of method dominate: discounted cash flow, which projects free cash flow and discounts it at the cost of capital before subtracting net debt; relative valuation, which applies multiples of earnings, book value, sales or cash flow drawn from comparable companies and transactions; and asset-based approaches used where the balance sheet holds the value. Each depends heavily on its assumptions, so results are usually presented as a range.

Early-Stage InvestingStocks

Investment in companies that have a product and some customers but have not yet reached predictable growth, typically the Series A and Series B rounds following seed funding. Capital funds the search for a repeatable sales process and the building of a team rather than initial product discovery. Returns are highly skewed, so investors build portfolios expecting most holdings to fail and a small number to account for the whole result, and their protection comes through liquidation preferences, pro rata rights and board representation rather than through collateral.

Equipment Trust CertificateStocks

A debt security secured by specific movable equipment, historically railcars and locomotives and now most often aircraft. Legal title to the equipment is held by a trustee for the certificate holders while the operator leases and uses it, so on default the trustee can repossess without the delays of a general insolvency claim. In the United States this treatment is reinforced by a statutory provision limiting the automatic stay for qualifying aircraft and rolling stock, which is why these certificates have historically priced tighter than an airline's unsecured debt.

Expectations Hypothesis of Interest RatesOptionsStocks

The proposition that long-term interest rates are the average of the short-term rates market participants expect over the life of the instrument, so the shape of the yield curve reflects expected policy alone. In its pure form it implies that forward rates are unbiased forecasts of future spot rates and that expected holding period returns are equal across maturities. Evidence is mixed: long yields do carry information about future short rates, but realised returns show a term premium that varies over time, which the pure form rules out.

ESOT(Employee Share Ownership Trust) Stocks

Abbreviation for employee share ownership trust, a United Kingdom trust a company establishes to buy and hold its own shares on behalf of employees. The company lends or gifts money to the trustees, who acquire shares in the market or from existing holders and warehouse them until they are released through share incentive plans, option exercises or profit-sharing awards. In a private company the trust also gives departing employees a ready buyer for shares that have no public market.

Euro DepositStocksFutures

A time deposit of a currency placed with a bank located outside the country that issues that currency, so a dollar deposit booked in London or a yen deposit booked in Singapore both qualify. The prefix refers to the offshore location, not to the euro currency. Because these deposits sit outside the domestic reserve and deposit insurance regime, banks can quote finer rates on them, and the interbank rates for such deposits historically set the reference for floating-rate loans.

European Development Fund(EDF) Stocks

The European Union instrument that has financed development aid and cooperation with African, Caribbean and Pacific countries and with overseas territories. It was funded by direct contributions from member states under multi-year replenishments, sat outside the general Union budget and carried its own governance and allocation rules, before its resources were folded into the Union's multiannual budget framework. It provided grants, budget support and risk capital rather than borrowing in the bond market.

Ex-Ante Portfolio ReturnStocksCrypto

The return a portfolio is expected to produce over a future period, calculated before the fact from forecast inputs rather than from realised prices. It is the weighted average of the expected returns on the holdings, each weighted by its share of portfolio value. Because every input is an estimate, the figure is a planning and risk-budgeting number, and the realised return will differ by the forecast error on each holding.

Ex-RightsStocks

The status of a share that trades without the entitlement to subscribe for new shares in a rights issue, because the buyer purchases after the record date. On the ex-rights date the share price typically falls by roughly the value of the detached right, since the right now trades separately or has been exercised. Buying cum-rights carries the entitlement, buying ex-rights does not, which is why price comparisons across that date need adjusting.

Excess SharesStocks

Shares available beyond a holder's basic entitlement in a rights or subscription offering, allocated through an oversubscription privilege to shareholders who apply for more than their pro rata allowance. They exist because some holders let their rights lapse, leaving unsubscribed stock the issuer can place with willing takers. The term is also used in some company charters for shares held above an ownership ceiling, which the charter may strip of voting and dividend rights.

ExclusionStocks

A clause in an insurance policy that removes a stated peril, property, activity or circumstance from cover that the insuring agreement would otherwise provide. Common examples are war, nuclear risk, wear and tear, deliberate acts and losses already covered elsewhere. Exclusions define the boundary of the contract, letting the insurer price a narrower and more predictable set of losses, so reading them is how a buyer discovers what a policy will not pay for.

Execution OnlyStocksCrypto

A dealing service in which a broker takes and carries out a client's instruction without giving advice or assessing whether the trade suits that client. The client chooses the instrument, size and timing, and the firm's duty is limited to handling the order properly and seeking a good result on price and cost. Fees are lower than for advised or discretionary services because no suitability assessment or recommendation is provided.

Exercise NoticeOptionsStocks

The formal instruction an option holder gives to exercise the contract, delivered to the broker and passed to the clearing house before the exercise deadline. The clearing house then assigns the obligation to a short position through a random or pro rata allocation, and that writer must deliver or receive the underlying, or pay cash settlement. Missing the deadline usually means the option expires unexercised even if it holds intrinsic value.

Expected UtilityStocksCrypto

The probability-weighted average of the satisfaction a decision maker attaches to each possible outcome, used instead of expected money value to explain choices under uncertainty. Each outcome's wealth is passed through a utility function, then multiplied by its probability and summed. A concave utility function makes the same gain worth less than the same loss hurts, which is how the framework represents risk aversion and explains why people insure and diversify.

Experience Rated PolicyStocks

An insurance contract whose premium is adjusted to reflect the buyer's own claims record rather than the average of the class. The insurer blends the account's loss experience over several years with the manual rate, applying a credibility weight that rises with the size and stability of the exposure. Good experience lowers the renewal premium, poor experience raises it, which gives the insured a direct financial reason to control losses.

Exploding OptionOptionsStocks

An option that terminates automatically and pays out its maximum value as soon as the underlying touches a preset trigger level, rather than running to expiry. It behaves like a capped spread with immediate settlement: the payoff is fixed at the cap, so the buyer gives up any further upside in return for a lower premium and early receipt of cash. The trigger removes the time value that would otherwise remain.

Exponential InterpolationStocks

A method for estimating a rate or price between two known points by interpolating on the logarithms of the values rather than on the values themselves, so growth is treated as compounding smoothly rather than as a straight line. Applied to a yield curve it keeps forward rates positive and produces constant continuously compounded rates between nodes. Linear interpolation on the same points gives slightly different intermediate values and can create small kinks in implied forwards.

Exponential SmoothingStocksCrypto

A forecasting technique that produces a smoothed series as a weighted average of the newest observation and the previous smoothed value, where the smoothing constant sets how quickly older data fade. Weights decline geometrically into the past, so no observation is ever fully discarded but distant ones count for little. A higher constant tracks turning points faster and admits more noise, while a lower one produces a steadier but slower-moving estimate.

Economic Man(homo economicus) StocksCrypto

The modelling assumption that a decision maker has complete and consistent preferences, knows the options and their consequences, and chooses whatever maximises personal payoff. It underpins much of neoclassical economics because it makes behaviour tractable and lets demand curves be derived from optimisation. Behavioural research documents systematic departures from it, including limited attention, reference dependence, loss aversion and concern for fairness, so it is treated as a benchmark rather than a description.

Effective Federal Funds Rate(EFFR) Stocks

The rate at which banks and other eligible institutions actually lend reserve balances to one another overnight without collateral, published each business day as a volume-weighted median of the previous day's transactions reported by the Federal Reserve Bank of New York. It contrasts with the target range set by the Federal Open Market Committee, which the effective rate is steered toward using administered rates on reserves and overnight reverse repurchase agreements.

Effective Exchange RateStocksFutures

An index measuring a currency's value against a basket of trading partners' currencies rather than against any single one, with each partner weighted by its share of the country's trade. It answers whether a currency has strengthened overall when it has risen against some currencies and fallen against others. The nominal version tracks market rates alone, while the real version adjusts for relative inflation and so proxies international competitiveness.

Efficiency WagesStocksCrypto

Pay set deliberately above the market-clearing level because doing so raises worker productivity enough to lower unit labour costs. Higher pay reduces quitting and hiring costs, attracts stronger applicants, discourages shirking by making dismissal expensive for the employee, and can improve morale and health. Because employers choose not to cut pay to the level that would clear the market, the theory offers one explanation for persistent involuntary unemployment.

Eurozone(euro area) StocksFutures

The group of European Union member states that have adopted the euro as their currency and share a single monetary policy set by the European Central Bank. Members give up an independent policy rate and their own exchange rate, while fiscal policy stays national and is constrained by common budget rules. Membership requires meeting convergence criteria on inflation, public deficits and debt, long-term interest rates and exchange rate stability.

Exponentially Weighted Moving Average Model(EWMA model) StocksCrypto

A volatility estimator that updates today's variance forecast as a weighted blend of yesterday's forecast and yesterday's squared return, with a decay factor controlling how fast old observations lose influence. Unlike an equally weighted sample variance it reacts quickly to a change in market conditions and avoids the abrupt drop that occurs when a large return leaves a fixed window. It is a restricted form of a GARCH model with no long-run average level.

Extendable BondStocks

A bond that gives the holder, or in some structures the issuer, the right to extend the maturity date by a further stated period on preset terms. The embedded option has value when rates at the decision date make the existing coupon attractive relative to the market, so a holder extension option raises the price the investor will pay and an issuer extension option lowers it. Valuation treats the bond as a straight bond plus that option.

Extendable SwapOptionsStocks

An interest rate swap in which one counterparty holds the right to extend the contract beyond its scheduled maturity for an agreed further term at the original fixed rate. It is economically a swap combined with a swaption written on the extension period, so the party granting the right is compensated through a less favourable fixed rate. Extension is exercised when the original fixed rate has become advantageous relative to market rates at the decision date.

easing of monetary policyStocks

A shift by a central bank toward looser financial conditions in order to support demand and lift inflation toward its target. The conventional instrument is a cut in the policy rate, which lowers short-term borrowing costs and, through expectations, longer rates as well. When the policy rate is close to its lower bound, the same aim is pursued through asset purchases that compress term premiums, lending schemes for banks, and guidance about how long rates will stay low. Tightening reverses the sequence.

economic earningsStocks

The amount a company could pay out each year indefinitely without reducing its productive capacity, in contrast to accounting net income, which follows recognition and allocation rules. Deriving it means replacing book depreciation with the true cost of maintaining assets, stripping out one-off gains and losses, and adjusting for spending expensed in one period that builds value over several, such as research. The result is the flow a valuation should capitalize, which is why analysts adjust reported profit before applying any multiple.

economic incomeStocks

The change in the economic value of a business or asset across a period, plus any cash distributed during it. Measuring it requires valuing the entity at the start and the end of the period, so unlike accounting profit it captures revaluations and shifts in expected future cash flows as they occur rather than when a transaction realizes them. The concept underlies residual income and economic profit measures, which charge the cost of capital against a period's return before treating anything as income.

endowment fundsStocks

Permanent pools of capital, usually held by universities, hospitals and foundations, invested to support the institution's spending indefinitely. A governing policy sets the spending rule, commonly a percentage of a multi-year average of market value, so distributions are smoothed against market swings while the real value of the corpus is preserved. Long horizons and the absence of a fixed liability allow more illiquid holdings than most investors can carry, and donor restrictions can require particular gifts to be held permanently or spent only for named purposes.

equity capitalStocks

The funds a business raises by selling ownership stakes, together with the profits it has retained rather than distributed. It carries no repayment date and no obligation to pay a return, which is exactly what makes it loss-absorbing: it stands behind every other claim and takes the first loss when asset values fall. Because holders are paid last in a liquidation and only from whatever remains, they require a higher return than lenders, so it is the most expensive form of finance on the balance sheet.

evergreen creditStocks

A revolving loan facility with no fixed final maturity, continuing until one party gives notice to end it, after which a stated notice period runs before repayment falls due. The structure gives the borrower long-term availability with the flexibility of a revolver, and gives the lender a regular opportunity to withdraw. Because the notice period rather than a maturity date determines how long the money is committed, the length of that period is the key term for both liquidity planning and accounting classification.

EV/2P RatioFuturesStocks

A valuation multiple for oil and gas producers that divides enterprise value by proven plus probable reserves, giving a value per unit of reserves still in the ground. Enterprise value is market capitalization plus net debt, and the reserve figure comes from the company's reserve report, where proven reserves carry high confidence of recovery and probable reserves are more likely than not. It allows comparison of producers with different capital structures, but it ignores extraction cost, reserve quality and the timing of production.

EconometricsStocksCrypto

The application of statistical methods to economic and financial data in order to estimate relationships, test hypotheses and forecast. Its distinctive problems come from the data rather than the mathematics: observational rather than experimental samples, variables determined jointly, omitted factors correlated with the ones measured, and time series whose properties change. Techniques such as instrumental variables, panel methods and time series models exist to address those problems, and the credibility of any estimate rests on whether its identifying assumptions hold.

Economic EquilibriumStocksCrypto

A state in which the forces acting on a market or an economy are balanced, so there is no tendency for prices or quantities to change until something outside the system shifts. In a single market it is the price at which the quantity buyers want equals the quantity sellers offer. In the general case it is the set of prices clearing all markets at once. It is a reference point rather than a description of the moment: real markets are usually adjusting toward one that is itself moving.

Economic ForecastingOptionsStocks

The practice of estimating future values of economic variables such as output, inflation, employment and interest rates, using statistical models, surveys, leading indicators and judgment. Estimates are conditional on assumptions about policy and outside shocks, which is why they are usually presented as a central case with a range around it. Accuracy declines quickly with horizon and is weakest exactly at turning points, so the useful output is often the set of scenarios and their drivers rather than the single headline number.

Economic LifeStocksCrypto

The period over which an asset is expected to remain useful and productive to its owner, which may be shorter than how long it could physically operate. It ends when running the asset costs more than replacing it, when it no longer meets requirements, or when technology or regulation makes it obsolete. It sets the depreciation schedule in accounting and the horizon in an investment appraisal, and it is an estimate that must be revisited, since residual value and the annual charge both depend on it.

Economic RecoveryStocksCrypto

The phase of the business cycle following a trough, in which output begins expanding again, unemployment starts falling and capacity utilization rises. Dating it is retrospective: the National Bureau of Economic Research committee identifies United States turning points well after the fact, using a range of monthly indicators. Such phases differ in shape and speed, and employment typically lags output because firms first restore hours and productivity before hiring, which is why an early upturn can feel weak in the labor market.

Economic surplusStocks

The total gain from trade in a market, equal to consumer surplus plus producer surplus. Consumer surplus is the value buyers place on what they bought above what they paid, and producer surplus is the revenue sellers received above the minimum they would have accepted. The total is maximized at the competitive quantity where marginal benefit equals marginal cost. Interventions that move quantity away from that point, such as taxes, price controls or monopoly restriction, reduce it, and the reduction is deadweight loss.

Economies of ScopeStocksCrypto

Cost savings that arise from producing several different products together rather than separately, because they share inputs, facilities, distribution, brand or research. A bank offering deposits, loans and payments to the same customer spreads the cost of that relationship and the compliance infrastructure across all three. It differs from economies of scale, which come from producing more of the same thing. Where the shared resource is limited or the businesses need different capabilities, the effect reverses and supports a case for separation.

Education LoanStocks

Borrowing used to pay tuition, fees and living costs while studying, repaid after or during the course. In the United States federal student loans are made under statutory terms with rates set annually by Congress, standardized repayment plans including income-driven options, and deferment and forgiveness provisions, while private loans are underwritten on credit and often need a co-signer. Such debt generally survives bankruptcy absent a showing of undue hardship, which is a material difference from most consumer credit.

Effective Gross IncomeStocks

A property's potential rental income at full occupancy plus other income such as parking and laundry, minus an allowance for vacancy and collection loss. It is the revenue line in a real estate operating statement, and subtracting operating expenses from it gives net operating income, which is what a capitalization rate is applied to for valuation. The vacancy allowance is an assumption, so two appraisals of the same property can differ materially at this line before any expense estimate is made.

Elastic demandStocks

Demand whose quantity responds more than proportionally to a change in price, so the price elasticity of demand is greater than one in absolute value. A 10 percent price rise cuts the quantity sold by more than 10 percent, which means total revenue falls when the seller raises price and rises when the seller cuts it. Goods with close substitutes, discretionary purchases and items absorbing a large share of a budget tend to behave this way, and elasticity usually increases as buyers get more time to adjust.

EmigrationStocksCrypto

The permanent departure of people from one country to settle in another, measured as a flow over a period rather than as a stock at a point in time. Net migration equals immigration minus emigration, and it feeds directly into population growth, labour force size and the dependency ratio. Sustained departure of working-age or skilled residents shrinks the tax base and the domestic labour supply, while remittances sent home by emigrants can become a large share of the origin country's foreign currency receipts.

Empire BuildingStocks

The tendency of managers to expand the size and scope of the business they control beyond what returns on capital justify, because pay, status and influence often scale with revenue, headcount and the number of divisions. It shows up as acquisitions that dilute returns, retained earnings reinvested below the cost of capital, and reluctance to divest weak units. It is a classic agency problem. Governance responses include tying incentives to return on invested capital, raising dividend or buyback payouts, and strengthening board oversight of large deals.

Employer Identification Number(EIN) Stocks

A nine-digit number the Internal Revenue Service assigns to a business entity so its federal tax filings, payroll deposits and information returns can be identified. Corporations, partnerships, most limited liability companies, estates and trusts apply for one; a sole proprietor with no employees may instead use a Social Security number. Banks and brokers generally require it before opening an account in an entity's name, and payers report it on information returns covering amounts paid to that entity.

Employment InsuranceStocks

Canada's federal programme paying temporary income benefits to workers who lose a job through no fault of their own, and also covering sickness, maternity, parental and caregiving leave. Employees and employers both pay premiums on insurable earnings up to an annual maximum. Benefits replace a percentage of average insurable weekly earnings for a number of weeks that depends on hours worked and the regional unemployment rate. The premium rate, maximum insurable earnings and benefit percentage are set each year by the responsible federal authorities.

Employment-to-Population RatioStocksCrypto

The share of the civilian working-age population currently employed, calculated as employed persons divided by the civilian noninstitutional population aged sixteen and over in United States data. Unlike the unemployment rate it does not depend on whether people are actively searching, so discouraged workers who stop looking pull it down instead of leaving it unchanged. Analysts read it alongside the labour force participation rate to separate changes in job availability from changes in willingness to work.

Energy SectorFuturesStocks

The group of listed companies whose primary business is producing, transporting, refining or servicing oil, natural gas and, under some classification schemes, coal and consumable fuels. Standard schemes such as the Global Industry Classification Standard place utilities and most renewable power generators in a separate sector. Earnings across the group move with commodity prices rather than with the general business cycle, which makes reported profits volatile and gives the group a different return pattern from parts of the market driven by consumer demand.

Enrolled Agent(EA) Stocks

A tax practitioner licensed by the United States Treasury with unlimited rights to represent taxpayers before the Internal Revenue Service in audits, collections and appeals. The credential is earned either by passing a three-part examination covering individual returns, business returns and representation, or through qualifying former employment at the agency, and it is kept current with continuing education and periodic renewal. Unlike a certified public accountant or an attorney, whose licences come from individual states, this authority is federal and applies in every state.

Enterprise Risk Management(ERM) StocksCrypto

A firm-wide approach to identifying, measuring and responding to risk across every business unit, rather than treating credit, market, operational and strategic exposures separately. The board approves a risk appetite, exposures are mapped against it, each material risk is assigned an owner and a control, and aggregate positions are reported upward on a regular cycle. Published frameworks such as the COSO enterprise risk management framework and ISO 31000 set out the structure. The purpose is to reveal correlated exposures that siloed reporting hides.

Entity TheoryStocksCrypto

An accounting view treating a business as a unit separate from the people who fund it, so assets belong to the entity and both creditors and shareholders hold claims against it. The balance sheet identity reads assets equal equities, with debt and equity counted alike as sources of finance. It contrasts with proprietary theory, which treats the firm as an extension of its owners and defines equity as assets minus liabilities. Consolidated group reporting rests on the entity view of the reporting unit.

Equilibrium priceStocks

The price at which the quantity buyers want to purchase equals the quantity sellers want to supply, so no residual pressure pushes the price in either direction. It sits at the intersection of the demand and supply curves, and the amount traded there is the equilibrium quantity. Above it, unsold surplus pushes sellers to cut. Below it, unmet demand lets them raise. A shift in either curve moves it, which is why supply shocks and demand shocks show up as price changes.

Escrow AgentStocks

A neutral third party holding money, securities or documents belonging to two other parties, releasing them only when the conditions written into the escrow instructions are met. In a property sale the agent holds the deposit and the deed, confirms that financing, title and inspection conditions are satisfied, then transfers each item to the correct side at closing. Banks, title companies, attorneys and specialist firms act in this role, and they owe duties to both parties rather than acting for either one.

European Banking Authority(EBA) Stocks

The European Union agency that writes the technical standards banks across the single market are supervised against, and tests the resilience of the sector. It drafts binding technical standards and guidelines implementing EU banking law, runs periodic union-wide stress tests with the European Central Bank and national supervisors, and publishes the resulting capital and asset quality data. It does not supervise individual banks day to day: that sits with national regulators and, for the largest euro area banks, with the Single Supervisory Mechanism.

European Union(EU) Stocks

A political and economic union of European member states operating a single market in which goods, services, capital and people move freely across internal borders. It sets common rules in areas members have delegated, including competition policy, financial regulation, trade negotiation and product standards, through the European Commission, the Council and the European Parliament. Membership is separate from membership of the euro area, since several members keep their own currency. Its rules shape reporting, disclosure and market structure for firms trading there.

Excess demandStocks

The amount by which the quantity buyers want at a given price exceeds the quantity sellers will supply at that price, also called a shortage. It appears whenever the prevailing price sits below the market-clearing level, whether because of a price ceiling, a sudden demand shock or a supply disruption. Where prices move freely, competition among unsatisfied buyers bids the price up until the gap closes. Where they cannot move, the shortage persists and is resolved through queues, rationing or informal markets.

Excess supplyStocks

The amount by which the quantity sellers want to sell at a given price exceeds the quantity buyers will take at that price, also called a surplus. It appears when the prevailing price sits above the market-clearing level, for example under a price floor such as a minimum wage or an agricultural support price. Free prices fall until the gap closes as sellers compete for scarce buyers. Where the price cannot fall, the surplus shows up as unsold inventory, idle capacity or, in labour markets, unemployment.

Excise TaxStocks

A tax charged on a specific good, service or activity rather than on income or on general consumption, commonly applied to fuel, tobacco, alcohol, airline tickets and certain financial transactions. It is usually levied per unit, such as an amount per gallon or per pack, though some are charged as a percentage of price, and it is collected from the producer or importer and embedded in the shelf price. The rate and the list of taxed items are set by legislation, so both vary by jurisdiction and change over time.

Exclusion principleFuturesStocks

The economic condition that an owner can prevent anyone who does not pay from consuming a good, which is what makes private markets workable. Where exclusion is feasible a seller can charge a price and withhold the good from non-payers, so willingness to pay reveals demand. Goods where exclusion is impractical, such as national defence or a lighthouse beam, invite free riding and are usually financed collectively instead. Excludability and rivalry together classify goods as private, club, common-pool or public.

ExpenseStocks

A cost recognised in the income statement in the period it is incurred, reducing reported profit for that period. Under accrual accounting, recognition follows the matching principle rather than the timing of cash payment: a cost is charged when the related revenue is earned or when the benefit is consumed, so prepaid rent sits on the balance sheet until the period it covers arrives. Costs creating a lasting benefit are capitalised as assets instead, then charged gradually through depreciation or amortisation.

ExpropriationStocks

The taking of private property by a government, with or without compensation, most often of land, natural resource concessions or foreign-owned subsidiaries. Where compensation is paid at assessed value the action is usually described as nationalisation or, in United States law, as a taking under eminent domain; where it is not, investors treat it as confiscation. It is a core component of political risk in cross-border investing, and exposure is mitigated through bilateral investment treaties, arbitration clauses and political risk insurance.

Externality of ProductionStocksCrypto

A cost or benefit created by a firm's production that falls on third parties and is not reflected in the price of the output. Factory emissions are a negative example: the private marginal cost the firm faces sits below the social marginal cost, so output exceeds the level that maximises social welfare. Research spilling over to rivals is a positive example. Policy responses try to internalise the gap through taxes, tradable permits, liability rules or direct regulation, so the producer faces the full cost.

Economic Vacancy(economic vacancy rate) Stocks

The gap between a property's gross potential rent and the rent actually collected, expressed as a percentage. It captures concessions, delinquency, non-revenue units and loss to lease as well as physically empty space.

Exit Cap Rate(terminal cap rate, reversion cap rate) Stocks

The capitalisation rate assumed when modelling the future sale of a property, applied to projected net operating income at the end of the holding period to estimate sale proceeds.