M: Glossary Terms

M

market capitalizationStocks

A token's or company's current price multiplied by its circulating supply or shares outstanding, used to compare the market value currently assigned to it.

mid capStocks

A company whose capitalization falls between the small and large tiers, often cited as roughly two to ten billion dollars in United States equities, though index providers set their own cutoffs and many rank by percentile instead of absolute size. Businesses in this band typically have established revenue but thinner liquidity and lighter analyst coverage than the largest names.

micro capStocks

A company valued below the small tier, commonly quoted as roughly fifty to three hundred million dollars in capitalization. Many trade over the counter rather than on a major exchange, file limited disclosure, and turn over so few shares in a day that a modest order moves the price. Wide spreads and promotion-driven swings are common in this range.

mega capStocks

The largest companies by capitalization, a label commonly applied above roughly two hundred billion dollars. Their weight in capitalization-weighted indices is large enough that a handful of them can determine an index return while most constituents move differently, which is why breadth measures are watched alongside the headline level of an index.

meme stockStocks

A share whose price moves are driven mainly by coordinated retail attention on social platforms rather than by any change in the underlying business. Typical features include heavy short interest, concentrated short-dated options activity, extreme volume spikes and prices far from any cash-flow-based estimate, with advances that reverse as quickly as they appear.

market indexStocks

A rules-based basket of securities whose combined value is tracked as a single number to represent a market or segment. The provider defines eligibility, the weighting scheme (capitalization, equal, price or factor) and a rebalancing calendar. A divisor is adjusted for splits, additions and deletions so the published level stays continuous rather than jumping on mechanical changes.

market breadthStocks

A measure of how many securities participate in a move, rather than how far an index travels. Common gauges count advancing versus declining issues, new highs versus new lows, or the share of constituents trading above a moving average. Narrow readings mean a few heavyweight names are carrying a capitalization-weighted index while most constituents lag. Full guide →

market cycle(Market Cycles) Stocks

Recurring multi-year swings in asset prices, valuations and investor behavior that run from early recovery through expansion, a peak, contraction and a trough. They are described by combining price trends with earnings growth, credit availability, monetary policy and sentiment measures, and different asset classes turn at different points, which is the basis of sector rotation frameworks. Cycles vary in length and amplitude and are not periodic, so a stage can be identified with reasonable confidence in hindsight and only loosely in real time.

market depth(depth) StocksCrypto

The quantity of buy and sell interest available at multiple price levels beyond the current best bid and ask.

market orderStocks

An order to buy or sell immediately at the best currently available price, prioritizing speed of execution over price control. Full guide →

market-on-openStocks

An instruction to execute at whatever price a venue's opening auction produces. It must be entered before the venue's cutoff, participates in the single-price cross that matches accumulated buy and sell interest, and receives that clearing price with no control over the level. Traders use it for certainty of participation rather than certainty of price.

market-on-closeStocks

An instruction to execute at the official closing price produced by a venue's closing auction. It must be submitted before the venue's cutoff time, joins the imbalance published in the minutes beforehand, and fills at the single clearing price. Index funds use it heavily because the close is the level their benchmarks are struck at.

midpoint pegStocks

An order type whose price floats at the middle of the national best bid and offer rather than sitting at a fixed level, updating as the quote moves. It is not displayed, so it captures half the spread when it matches contra interest, but it gives up queue position at the touch and may go unfilled if no counterparty crosses.

market impactStocksCrypto

The price movement attributable to the act of trading itself, especially when order size is large relative to available liquidity. Full guide →

margin accountStocks

A margin account is a brokerage account that can permit the customer to borrow from the broker or create positions requiring collateral. Margin increases buying power but also introduces interest cost, maintenance requirements, and forced-liquidation risk. Full guide →

management guidanceStocks

A company's own forward-looking estimates of results, typically revenue, margin, profit per share or capital spending for the coming quarter or year, given on earnings calls or in filings. It is a forecast rather than a commitment and is issued with safe-harbor language. Because analyst models anchor on it, revisions often move the stock more than reported results do.

multiple expansionStocks

A rise in the ratio the market applies to a company's fundamentals, so the price increases without any improvement in profit or cash flow. Falling interest rates, improved sentiment or a higher expected growth rate can cause it. Returns produced this way are more easily reversed than returns that came from growth in the underlying business.

multiple compressionStocks

A fall in the ratio the market applies to a company's fundamentals, so the price declines even when profit holds steady or grows. Rising discount rates, deteriorating growth expectations or a sector-wide rerating typically cause it. It explains how a stock can fall through a period in which every reported result met expectations.

margin of safetyStocks

The gap between an investor's estimate of value and the market price, intended to provide room for forecasting error rather than guarantee against loss. Full guide →

management discussion and analysisStocks

The narrative section of a company's annual or quarterly filing where executives explain results in their own words: what drove revenue and margin changes, the liquidity and capital resources position, known trends and uncertainties, and critical accounting estimates. It is required by SEC rules and is where the reasoning behind the reported numbers appears.

merger arbitrageStocks

Merger arbitrage is an event-driven strategy that trades the spread between a target company’s market price and the value implied by an announced acquisition, taking deal-break, timing, financing, and regulatory risk.

mean reversionStocksCrypto

A hypothesis that a defined deviation from a reference relationship or level is temporary and will move back toward that reference. The existence of a moving average alone does not establish a reversion edge. Full guide →

moving average crossoverStocksCrypto

A signal generated when one smoothed price line crosses another, typically a shorter lookback crossing a longer one, taken as evidence the recent trend has shifted relative to the longer trend. Because both inputs lag, the signal arrives after the turn, and it produces repeated false crosses in rangebound conditions, which is why it is usually filtered.

moving average convergence divergenceStocksCrypto

A momentum indicator plotting the difference between two exponentially smoothed price lines, conventionally the twelve-period minus the twenty-six-period, together with a signal line that is a nine-period exponential average of that difference. Crossings of the two lines, position relative to zero, and divergence against price are the three ways it is read.

MACD histogramStocksCrypto

The bar plot of the gap between the MACD line and its signal line, so the bars cross zero exactly when those two lines cross. Bar height measures how far momentum has separated from its own average, and the direction of the bars turns before the crossing itself, which is why it is used as an earlier warning.

money flow indexStocksCrypto

A volume-weighted momentum oscillator built like the relative strength index but using typical price multiplied by volume rather than price alone. Periods with a rising typical price count as positive flow and falling ones as negative, and the ratio is scaled from zero to one hundred, so extremes are read as overbought or oversold with volume confirmation. Full guide →

market profileStocksCrypto

An auction-market framework organizing price acceptance over time, often using time-price opportunities to visualize where the market spent time. Full guide →

McClellan oscillatorStocksCrypto

A breadth indicator equal to the difference between a nineteen-period and a thirty-nine-period exponential moving average of daily advances minus declines. It oscillates around zero, with the sign showing whether breadth momentum is expanding or contracting, and extreme readings marking breadth exhaustion in either direction rather than a price target. Full guide →

McClellan summation indexStocksCrypto

The running cumulative total of the McClellan oscillator, converting a short-term breadth momentum measure into a longer-term one. Its level indicates the accumulated state of participation and its direction indicates whether breadth is improving or deteriorating. Crossings of zero and sharp reversals from an extreme are the readings usually taken from it.

morning starStocksCrypto

A three-candle bullish reversal appearing after a decline: a long down period, a small-bodied period that gaps or stalls at the low showing balance, then a strong up period closing well into the first body. The middle candle marks where selling pressure stopped, and the third confirms that control has shifted to buyers. Full guide →

momentum tradingStocksCrypto

Buying assets whose prices have already risen and selling or avoiding those that have fallen, on the premise that recent relative performance tends to persist over intermediate horizons. Signals are often built from returns over three to twelve months, or from price crossing a moving average. Positions built this way are vulnerable to sharp reversals when market leadership rotates.

market-neutralStocksCrypto

A portfolio construction goal in which long and short exposures are sized so the combined position has little sensitivity to the direction of the broad market, usually measured as portfolio beta near zero. Returns are meant to come from the relative performance of the longs against the shorts. Residual exposure to sector, size, or factor risk can remain even when beta is neutralized.

momentum factorStocksCrypto

The tendency, documented in academic research by Narasimhan Jegadeesh and Sheridan Titman, for securities that have performed relatively well over the recent past, typically the prior 3 to 12 months, to continue outperforming over the following months, and for recent relative losers to continue underperforming, more often than a random walk in prices would predict. Full guide →

multi-factorStocksCrypto

A portfolio approach that combines several sources of expected return, such as value, momentum, quality, size, and low volatility, instead of relying on one. Because these sources underperform at different times, blending them is intended to smooth results relative to a single-signal sleeve. Construction choices include how each signal is measured, how they are weighted together, and how often the portfolio is rebalanced.

market regimeStocksCrypto

A persistent set of conditions that shapes how prices behave, usually described by combinations of trend and volatility such as trending and calm, or choppy and turbulent. Strategies that work in one state often fail in another, which is why classification is used to switch models or cut size. States are labeled with confidence only after the fact, so real-time identification is uncertain. Full guide →

maximum drawdown(MDD) StocksCrypto

The largest observed peak-to-trough percentage decline in a portfolio, asset, or strategy over a specified sample.

mental stopStocksCrypto

An exit level a trader decides on but does not place as a live order, choosing instead to act manually if price reaches it. It keeps the order off the book and avoids being filled on a brief spike through the level. It depends entirely on the trader being present and willing to execute, so gaps, outages, and hesitation can leave the loss far larger than planned.

maximum lossStocksCrypto

The largest amount a position or strategy can lose under its defined structure, calculated before entry. For a defined-risk options spread it equals the premium paid, or the width between strikes less any credit received. For a share position with a protective exit it is an estimate rather than a limit, because gaps and trading halts can carry price past the intended exit level.

Monte Carlo simulationStocksCrypto

Repeated random simulation of modeled market, strategy, or portfolio paths to estimate a distribution of possible outcomes.

market-cap weightStocksCrypto

A construction rule that sets each holding in proportion to its market capitalization, so the largest companies dominate the portfolio. Allocations adjust automatically as prices move, which keeps turnover and trading costs low. The tradeoff is concentration: once a handful of names grow very large, the index behaves increasingly like those few companies rather than like the broad set it contains.

minimum varianceStocksCrypto

A portfolio built to have the lowest possible volatility given the assets available, solved from their estimated variances and correlations without any view on expected returns. It sits at the far left tip of the efficient frontier. Results depend heavily on the covariance estimates, and the solution tends to concentrate in defensive, low-volatility holdings unless weight constraints are imposed.

modern portfolio theoryStocksCrypto

The framework introduced by Harry Markowitz showing that an asset's contribution depends on its correlation with everything else held, not only on its own return and volatility. Combining imperfectly correlated holdings can reduce total variance without proportionally reducing expected return, producing an efficient frontier of the best available tradeoffs. Its assumptions of normally distributed returns and stable correlations are the main practical weakness.

mean-variance optimization(MVO) StocksCrypto

A portfolio optimization framework choosing weights from expected returns, variances, and covariances to balance modeled return and volatility.

maintenance marginStocksCryptoFutures

The minimum account equity or collateral required to keep an existing leveraged position open after entry.

margin callStocksCryptoFutures

A broker's demand for additional funds or securities when an account's equity falls below the required maintenance level, which can force the account to sell positions if unmet.

multi-leg orderStocksOptions

An order submitting two or more option or derivative legs as one strategy so pricing and execution are coordinated.

market microstructureStocks

The study of how trading rules, order types, fee schedules, and venue design shape prices, spreads, and liquidity at short horizons. It covers how orders are matched and prioritized, how information enters prices, and what determines the cost of executing a given size. Its practical output is execution: choosing order type, venue, and timing to narrow the gap between decision price and fill.

matching engineStocksCrypto

The exchange or venue software that applies order-priority rules to match compatible buy and sell orders.

market maker(market-maker) StocksCrypto

A firm or participant that regularly quotes prices at which it is willing to buy and sell, seeking to facilitate liquidity while managing inventory risk.

market fragmentationStocks

The spread of trading in one security across many venues, so no single book holds all available liquidity. It increases competition on fees and speed, but it requires participants to consolidate quotes and route intelligently to find the best price and enough size. Rules such as the United States order protection requirement link venues so a trade cannot ignore a better displayed price elsewhere.

maker-takerStocks

An exchange fee model that pays a rebate to orders resting in the book that add liquidity, while charging a fee to orders that execute against resting interest and remove it. The intent is to attract displayed quotes and narrow spreads. Critics argue it distorts routing, since a broker can be paid more to send an order to the venue offering the largest rebate rather than the best fill.

minimum price incrementStocks

The smallest amount by which a quote or trade price may change in a given instrument, commonly called the tick size. In United States equities above one dollar it has generally been one cent, with regulators periodically revisiting the increment for very liquid names. A wider increment thickens the queue at each level, while a narrower one allows finer pricing but can thin displayed depth.

marketable orderStocksCrypto

An order priced aggressively enough to execute immediately against available opposite-side liquidity.

macroeconomicsStocksCrypto

The study of an economy as a whole, covering output, employment, inflation, interest rates, trade, and the effect of fiscal and monetary policy on them. Traders use it to anticipate how growth and policy shifts reprice bonds, currencies, equities, and commodities. Its data arrives as scheduled releases that are frequently revised, so early estimates are working figures rather than settled facts.

monetary policyStocksCrypto

A central bank's management of interest rates and the supply of money and reserves in order to influence credit conditions, spending, and inflation. Conventional settings work through a short-term policy rate. Unconventional tools include asset purchases, balance sheet reduction, and explicit guidance about the future path of rates. Effects reach the real economy with long and variable lags, which complicates timing.

modular blockchainCrypto

An architecture that separates a blockchain's core functions (execution, settlement, consensus, and data availability) across specialized layers or networks instead of handling all of them inside one protocol. Specializing each layer can raise throughput and let developers combine components. The tradeoffs are added complexity, dependencies between layers, and a security model that now spans more than one system.

monolithic blockchainCrypto

An architecture in which one network handles execution, consensus, settlement, and data availability together inside a single protocol. Everything a validator needs sits in one system, which keeps the security model simple and avoids dependencies on outside layers. The constraint is that raising throughput generally means raising hardware requirements for validators, which reduces how many participants can run a node.

maximal extractable valueCrypto

The profit available to whoever decides the order, inclusion, or exclusion of transactions in a block, beyond the standard block reward and fees. It arises from reordering opportunities such as arbitrage between venues, triggering liquidations, and inserting trades around a pending swap. Designs including encrypted mempools, batch auctions, and separating block building from proposing aim to limit or redistribute it.

mark priceCryptoStocks

A reference price used to value positions or trigger risk controls rather than necessarily representing the most recent trade; methodology varies by venue.

maker feeCryptoStocks

A trading fee charged for adding liquidity to an order book; some venues instead pay a maker rebate.

maximum supplyCrypto

The hard cap on how many units of a token can ever exist, enforced by the protocol's issuance rules and distinct from the amount currently circulating or already issued. Bitcoin's cap of twenty-one million units is the most cited example. Some tokens have no cap and issue on a continuing schedule, in which case the field is reported as unlimited rather than as a number.

MEV botCrypto

An automated program that scans pending transactions and on-chain state for profitable ordering opportunities, then bids for block space or submits bundles to builders so its transactions land at a chosen position. Typical activities include arbitrage between venues, triggering liquidations, and placing trades around a pending swap. Competition happens through fee bidding, so much of the extracted value ends up with validators and builders.

MVRVCrypto

The ratio of an asset's market value to its realized value, where realized value prices every coin at the moment it last moved rather than at today's price. A reading above one means the aggregate holder base sits on unrealized gains, and below one means unrealized losses. Analysts watch extremes as a gauge of how stretched holder profitability has become, not as a timing rule. Full guide →

miner reserveCrypto

Cryptoassets held by addresses attributed to miners or mining entities under a data provider's labeling methodology.

miner capitulationCrypto

A market term for periods when mining economics deteriorate enough that some miners shut down, sell reserves, or otherwise reduce operations.

Merkle treeCrypto

A hash-based tree structure allowing efficient verification that data is included in a larger set without revealing or transmitting the entire dataset.

mobile walletCrypto

A smartphone application that stores encrypted private keys on the device, usually protected by the phone's secure element and biometric unlock, and signs transactions locally. Camera scanning and deep links make in-person payments and application connections convenient. Device loss, malicious apps, clipboard-hijacking malware, and SIM-swap attacks against any linked recovery method are the characteristic exposures.

multi-signatureCrypto

A wallet arrangement requiring approvals from several independent keys before a transaction is valid, commonly written as m of n, such as two of three. No single compromised key can move funds, and one lost key does not lock the wallet as long as the threshold can still be met. Treasuries and shared custody use it; the tradeoffs are more complex setup, recovery, and coordination.

multi-party computationCrypto

A cryptographic technique that splits key material into shares held by separate parties, which jointly produce a signature without any party ever assembling the complete private key. Unlike a multi-signature wallet, the result looks like an ordinary single-key transaction on-chain and works on any network. Security depends on the implementation and on the shares being held under genuinely independent control.

malicious signatureCrypto

A signing request crafted so that approving it authorizes something other than what the interface suggests, for example an order selling an NFT collection for nothing, a permit granting spending rights, or a delegation of account control. Because it is signed off-chain, no network fee is required and nothing appears in transaction history until the attacker uses it. Wallets that decode and display the request's fields make the mismatch visible.

mining incomeCrypto

Value of newly issued coins and transaction fees a miner receives for producing a valid block. In the United States this is generally ordinary income at fair market value on the date of receipt, and that value becomes the coin's cost basis for a later disposal. A miner operating as a business reports on a business schedule, may deduct electricity, hosting, and hardware depreciation, and may owe self-employment tax, while a hobbyist reports differently. Rules are set by the IRS and change periodically.

money transmitterCrypto

A legal classification that can apply to businesses receiving and transmitting money or value, including some crypto services, depending on jurisdiction and activity.

money services businessCrypto

United States regulatory category under the Bank Secrecy Act covering non-bank firms that transmit money or deal in currency, including money transmitters, check cashers, and dealers in foreign exchange. Firms in the category must register with FinCEN, maintain an anti-money laundering program, keep records, and file currency and suspicious activity reports. FinCEN guidance has treated many crypto exchangers and administrators as money transmitters within this category, and most states impose separate licensing on top.

mark-to-marketCryptoFutures

The practice of revaluing an open futures or derivatives position to the current settlement price at the end of each trading session, crediting or debiting the resulting gain or loss (variation margin) to the account daily rather than only at close-out.

midpoint(mid-price) StocksCrypto

The price halfway between the current bid and ask, commonly used as a neutral reference for execution analysis.

MRRStocks

Monthly recurring revenue, the committed subscription revenue attributable to a single month, calculated by normalizing every active contract to a monthly amount. Annual contracts are spread across the months they cover and one-time charges are excluded. It is tracked as a build: opening balance plus new plus expansion minus contraction minus churn gives the closing balance. Multiplying by twelve gives annual recurring revenue, so the two describe the same book at different scales.

MD&AStocks

Management's discussion and analysis, the narrative section of a company's annual and quarterly filings in which management explains the results, the reasons for period-over-period changes, liquidity and capital resources, critical accounting estimates, and known trends or uncertainties. It is required by SEC rules and is where the numbers elsewhere in the filing are given context. Because it is management's own account, it is read alongside the audited statements rather than in place of them.

MACDStocksCrypto

A trend and momentum indicator built from the difference between two exponential moving averages, plotted alongside a signal line, with crossovers and divergence used to gauge shifting momentum. Full guide →

MFIStocks

Money flow index, an oscillator that applies the relative strength index construction to volume-weighted price. Typical price, the average of high, low, and close, is multiplied by volume to give raw money flow; flows are classed positive or negative depending on whether typical price rose or fell; and the ratio of positive to negative sums across the window is mapped onto a zero to one hundred scale. It is read much like RSI but responds to volume as well as price.

marubozuStocksCrypto

Candlestick with no wicks, or almost none, so the open sits at one extreme of the range and the close at the other. A bullish one opens at the low and closes at the high, meaning buyers controlled the interval from start to finish, and a bearish one is the mirror image. It signals one-sided participation rather than a reversal, and is usually read as confirmation of the direction in which it appears. Full guide →

moneynessStocksOptions

The relationship between an option's strike price and the current price or forward value of the underlying asset.

mempool(memory pool) Crypto

A node's pool of valid but unconfirmed transactions waiting to be included in a block; mempools can differ between nodes.

miningCrypto

The proof-of-work process of using computational power to validate transactions and add new blocks to a blockchain, in exchange for a block reward, transaction fees, or both.

minerStocksCrypto

Participant in a proof-of-work network that assembles candidate blocks from pending transactions and repeatedly hashes the block header searching for a value below the protocol's target. The first to find one broadcasts the block and collects the block subsidy plus the transaction fees it contains. Mining is a race for a fixed reward, so economics depend on share of total hash rate, electricity cost, and hardware efficiency. In proof-of-stake networks the analogous role is the validator.

MEV(maximal extractable value) Crypto

Maximal extractable value: value captured by controlling, influencing, or reacting to transaction ordering, inclusion, or execution around blockchain blocks. Full guide →

mintCrypto

To create new token units or an NFT under the rules of a blockchain protocol or smart contract.

multisigCrypto

A wallet or contract requiring signatures from several of a defined set of keys before a transaction executes, commonly written as m-of-n. Treasuries, bridges, and protocol admin functions use one so a single compromised key cannot move funds. Security depends on the signers being genuinely independent: keys held by one person or one organization produce the appearance of distributed control without the substance of it.

malwareCrypto

Software installed without informed consent to steal data, credentials, or funds. Variants that matter to investors include clipboard hijackers that swap a copied wallet address for the attacker's, keyloggers that capture exchange passwords, infostealers that harvest browser sessions and wallet files, and remote-access tools that operate the machine directly. It usually arrives through a downloaded installer, a cracked application, a malicious browser extension, or an attachment.

MarginStocks

Borrowed funds from a broker used to increase buying power beyond an account's cash balance, which magnifies both gains and losses.

Margin Requirement (Short Selling)Stocks

The minimum equity a brokerage requires an account to maintain to support a short position, reflecting the potentially unlimited loss risk of a short sale. Full guide →

Max SupplyCrypto

The maximum number of units a token's protocol is designed to ever create, if a hard cap is defined; not every token has one. Full guide →

Moving Average (SMA vs. EMA)StocksCrypto

A line that smooths price data over a set number of periods to show trend direction; a simple moving average (SMA) weights all periods equally, while an exponential moving average (EMA) weights recent periods more heavily and reacts faster to new price changes. Full guide →

Multisignature WalletCrypto

A wallet that requires signatures from more than one private key to authorize a transaction, reducing the risk of a single compromised or lost key.

M-of-N MultisigCrypto

A multisignature arrangement requiring any M signatures from N authorized keys to approve an action.

Max Fee Per GasCrypto

The maximum total fee per gas unit an Ethereum user authorizes under EIP-1559 transaction pricing.

Max Priority Fee Per GasCrypto

The maximum priority fee per gas unit an Ethereum transaction is willing to pay to the block producer under EIP-1559.

Merkle Patricia Trie(MPT) Crypto

Ethereum's historical authenticated data structure combining trie and Merkle concepts to represent account and storage state.

Merkle ProofCrypto

A compact set of hashes allowing verification that a specific item is included in a Merkle tree committed by a known root.

Merkle RootCrypto

The top hash of a Merkle tree that commits to all included underlying data.

Message SigningCrypto

Using a wallet key to prove control of an address or authorize off-chain data without necessarily submitting an on-chain transaction.

Miner RevenueCrypto

The aggregate value miners earn from block subsidies and transaction fees over a period. Full guide →

Mining DifficultyCrypto

A protocol parameter controlling how hard it is for proof-of-work miners to find a valid block, usually adjusted to target a desired block interval.

Mining PoolCrypto

A group of proof-of-work miners combining hash power and sharing rewards according to the pool's payout method.

Missed AttestationCrypto

A validator duty not successfully completed or included, reducing expected rewards and potentially causing penalties.

Mnemonic Phrase(recovery phrase) Crypto

A human-readable sequence of words representing wallet seed entropy under standards such as BIP-39; it can recreate all derived keys if compromised.

Multisig ThresholdCrypto

The minimum number of authorized signatures required to approve a transaction in a multisignature wallet, such as 2-of-3.

Market Cap to FDV(MC/FDV) Crypto

Circulating market capitalization divided by fully diluted valuation, used as a rough indicator of how much potential supply is already circulating.

Mercenary LiquidityCrypto

Liquidity supplied primarily to capture short-term incentives and likely to leave when rewards decline.

Metadata URICrypto

A link or content identifier stored or referenced by a token that points to associated metadata such as name, image, or attributes.

Mint-and-RedeemCrypto

A stablecoin or token issuance process where authorized participants create tokens by depositing assets and destroy them when redeeming collateral.

Mintable TokenCrypto

A token contract that permits authorized actors or protocol logic to create additional units after deployment.

Monetary PremiumCrypto

The portion of an asset's value attributed to being held as a monetary store, collateral, settlement asset, or reserve rather than for direct productive cash flow.

Multisig AdminCrypto

An administrative setup requiring multiple approved signers to authorize sensitive protocol or treasury actions.

Margin RatioCrypto

A venue-specific measure comparing account equity or collateral with margin requirements, often used to determine liquidation risk.

Market Value to Realized Value (MVRV)(MVRV) Crypto

Market capitalization divided by realized capitalization, used to compare current market value with an on-chain cost-basis proxy.

Market-Neutral Crypto StrategyCrypto

A strategy designed to reduce broad directional crypto exposure while targeting relative-value, basis, funding, arbitrage, or idiosyncratic returns.

Mega WhaleCrypto

Informal label for exceptionally large crypto holders or entities, with no standardized balance threshold.

Miner OutflowCrypto

Transfers from miner-attributed addresses, potentially reflecting sales, custody moves, collateralization, or treasury management. Full guide →

Multi-Asset CollateralCrypto

A margin system accepting multiple cryptoassets or stablecoins as collateral, usually with haircuts reflecting volatility and liquidity.

MVRV Z-Score(MVRV Z) Crypto

A standardized version of the difference between market and realized value, designed to contextualize MVRV relative to historical volatility.

M-of-NCrypto

A multisignature rule requiring M valid approvals from N authorized signers before an action can execute.

Machine-to-Machine PaymentCrypto

An automated value transfer between devices or software agents for data, compute, services, or resources.

MainnetCrypto

A blockchain's production network where real assets and economic value are transacted.

Market Maker WalletCrypto

A wallet attributed to an entity providing exchange or on-chain liquidity, inventory management, or token-market-making services.

Market Regime (Crypto)Crypto

A recurring market condition such as trending, ranging, high-volatility, low-liquidity, risk-on, or deleveraging that can change strategy performance.

Matching PriorityCrypto

The rule determining which resting order executes first when multiple orders are eligible at the same price, such as price-time or pro-rata priority.

Memecoin(meme coin) Crypto

A cryptoasset whose value and community are driven heavily by memes, culture, social coordination, and speculation rather than a traditional cash-flow model.

MindshareCrypto

A measure or estimate of how much social, developer, media, or trader attention a project or narrative receives.

MixerCrypto

A service or protocol intended to obscure transaction histories by combining or transforming funds among many participants; legal treatment varies by jurisdiction.

Moon(to the moon) Crypto

Crypto slang for a rapid or hoped-for large increase in price.

MoonshotCrypto

A highly speculative asset or trade expected by promoters or traders to have unusually large upside potential.

Move-to-EarnCrypto

A token-incentive model rewarding users for tracked physical activity such as walking or running.

MPC Wallet(multi-party computation wallet) Crypto

A wallet using multi-party computation to distribute signing authority across multiple parties or devices without reconstructing one complete private key in a single place.

Management FeeCrypto

A recurring fee charged on assets managed by a vault, fund, or protocol over time.

Maximum LTVCrypto

The highest loan-to-value ratio a protocol permits for initiating or maintaining a borrow before additional constraints apply.

Maximum SoldCrypto

The largest input amount a user permits for an exact-output swap before the transaction reverts.

Meta PoolCrypto

A liquidity pool that pairs an asset with a base pool or pool token to extend liquidity without rebuilding all underlying pair combinations.

Minimum Collateral RatioCrypto

The lowest collateralization ratio a protocol permits before liquidation or other risk controls become active.

Minimum ReceivedCrypto

The smallest output amount a user agrees to accept from a swap before the transaction reverts, usually derived from slippage tolerance.

Money MarketCrypto

In DeFi, a protocol that pools supplied assets and allows collateralized borrowing with algorithmically or governance-set interest rates.

Multi-Hop SwapCrypto

A decentralized exchange trade routed through one or more intermediate assets because no single direct pool offers the preferred execution.

Maintenance CapExStocks

Estimated capital spending needed to maintain existing productive capacity rather than fund growth; it is usually an analytical estimate, not a standardized accounting line. Full guide →

Minority Interest(noncontrolling interest) Stocks

The portion of a consolidated subsidiary's equity not owned by the parent company, now commonly called noncontrolling interest.

Miss and LowerStocks

Trader shorthand for reporting results below expectations and reducing forward guidance.

Monthly Recurring Revenue (MRR)(MRR) Stocks

A subscription metric estimating recurring revenue normalized to a monthly run rate; company definitions vary. Full guide →

Mempool FrontrunningCrypto

Observing a pending public transaction and submitting a competing transaction intended to execute first and profit from its expected market impact.

Messaging ProtocolCrypto

Infrastructure for passing authenticated instructions or state information across blockchains, which may or may not transfer assets directly.

Meta-TransactionCrypto

A transaction-like signed message submitted on-chain by a relayer so the signer does not directly pay the base-chain gas fee.

MEV BurnCrypto

A proposed mechanism that removes some MEV-related value from private capture, potentially by burning auction proceeds or protocol-level fees.

MEV ProtectionCrypto

A broad set of transaction-routing and market-design techniques intended to reduce harmful value extraction from users through transaction ordering.

MEV RebateCrypto

A mechanism returning part of orderflow or block-execution value to the user, application, validator, or liquidity source that generated it.

MEV RedistributionCrypto

Rules or markets that distribute captured MEV among validators, users, protocols, token holders, or other participants rather than only the searcher.

MEV Searcher(searcher) Crypto

A bot or trader that scans blockchain state and pending transactions for profitable arbitrage, liquidation, sandwich, or other ordering opportunities.

MEV-Boost(MEV Boost) Crypto

Middleware used by Ethereum validators to obtain externally built blocks through a proposer-builder marketplace.

Miner Extractable ValueCrypto

The earlier expansion of MEV emphasizing value miners could extract through transaction ordering before proof-of-stake terminology broadened the concept.

MakerStocksCrypto

A participant or order that adds resting liquidity to an order book rather than immediately trading against existing interest.

Maker-Taker PricingStocksCrypto

A venue fee model that typically charges liquidity takers and rebates or charges differently for liquidity makers.

Market PegStocksCrypto

A pegged order priced relative to the opposite-side best quotation, typically making it more aggressive than a primary peg.

Market-on-Close (MOC)(MOC) StocksCrypto

An order intended to execute in the closing auction at or near the official closing price, subject to exchange rules and cutoff times.

Market-on-Open (MOO)(MOO) StocksCrypto

An order intended to execute in the opening auction at or near the official opening price.

Marking the CloseStocksCrypto

Trading activity intended to improperly influence a security's closing price, particularly when the closing value affects valuations, benchmarks, or derivatives.

Message RateStocksCrypto

The frequency of order-entry, cancellation, modification, quote, or other electronic messages sent to a venue or market-data system.

MicropriceStocksCrypto

An order-book-derived estimate of near-term fair price that adjusts the midpoint for bid and ask queue imbalance.

Midpoint Peg OrderStocksCrypto

A pegged order that seeks execution at or relative to the midpoint of the prevailing bid and ask.

Minimum Execution QuantityStocksCrypto

An order condition requiring any individual fill to meet a stated minimum size before execution is permitted.

Minimum Order Quantity(MOQ) StocksCrypto

The smallest quantity a venue or order instruction will accept or execute under specified conditions.

Momentum IgnitionStocksCrypto

A manipulative strategy intended to trigger other participants' trading or algorithms so a price move accelerates and benefits a preexisting position.

MarkStocksOptions

A broker- or platform-defined reference value for an option or derivative, commonly based on midpoint, last price, or a theoretical calculation.

Max LossStocksOptions

The greatest loss a defined option strategy can theoretically produce under its payoff assumptions, which may be limited or potentially very large.

Max Pain(maximum pain) StocksOptions

A popular but nonstandard calculation identifying the expiration price that would minimize aggregate intrinsic payout across listed options; it is not a validated price forecast.

Max ProfitStocksOptions

The greatest profit a defined option strategy can theoretically produce under its payoff assumptions, which may be limited or unlimited.

Mid PriceStocksOptions

The midpoint between an option's bid and ask, often used as a reference for limit pricing but not guaranteed to be executable.

Monte Carlo Option PricingStocksOptions

A derivative-valuation method using simulated price paths to estimate expected discounted payoffs, especially useful for path-dependent structures.

Monthly Option(monthly options) StocksOptions

Listed contracts following the standard monthly expiration cycle, which for United States equity options falls on the third Friday of the month. These series are the longest established, generally carry the deepest open interest and tightest spreads, and serve as the reference for index settlement and many institutional hedges. Versions extending beyond a year are quoted as LEAPS.

Maintenance ExcessStocksCrypto

Account equity or collateral above the required maintenance margin, providing a buffer before a margin deficiency.

MAR RatioStocksCrypto

A performance ratio comparing compound annual return with maximum drawdown, similar to the Calmar ratio but historically associated with managed accounts reporting.

Margin UtilizationStocksCrypto

The portion of available margin, buying power, or collateral currently committed to open positions under a broker or venue's calculation.

Marginal Risk Contribution(MRC) StocksCrypto

The change in total portfolio risk associated with a small increase in a position's weight.

Market BetaStocksCrypto

Estimated sensitivity of an asset or portfolio to movements in a broad market benchmark.

Market Risk PremiumStocksCrypto

The expected market return above the risk-free rate in a model such as CAPM.

Market-Cap WeightingStocksCrypto

Weighting securities in proportion to their market capitalizations so larger companies receive larger index or portfolio weights.

Markov Regime-Switching ModelStocksCrypto

A time-series model allowing parameters to change across latent states whose transitions follow a Markov process.

Mean Absolute Error (MAE)(MAE) StocksCrypto

The average absolute difference between predictions and observed values, generally less sensitive to large outliers than MSE.

Mean Squared Error (MSE)(MSE) StocksCrypto

The average squared difference between model predictions and observed values.

Mean-Reversion Half-LifeStocksCrypto

An estimate of how quickly a deviation from equilibrium decays under a chosen mean-reverting model.

Minimum-Variance PortfolioStocksCrypto

The portfolio with the lowest modeled variance among portfolios satisfying the stated constraints.

Model RiskStocksCrypto

The risk of loss or bad decisions caused by incorrect model assumptions, implementation errors, poor inputs, or inappropriate use.

Modified Dietz ReturnStocksCrypto

An approximation of money-weighted performance that weights external cash flows by the fraction of the measurement period they are invested.

Money-Weighted Return(MWR, IRR) StocksCrypto

A portfolio return measure sensitive to the timing and size of external cash flows, typically calculated as an internal rate of return.

Monte Carlo VaRStocksCrypto

VaR estimated from simulated portfolio outcomes generated by a specified stochastic model.

Multiple RegressionStocksCrypto

A regression with more than one explanatory variable, often used to estimate multiple factor exposures simultaneously.

Multiple-Testing ProblemStocksCrypto

The increasing likelihood of false discoveries when many hypotheses or strategy variants are tested without appropriate statistical correction.

Management Buyout (MBO)(MBO) Stocks

An acquisition in which members of a company's management team participate in purchasing the business, often with outside financing.

Market ValueStocks

The current price-based value assigned to an asset or position by the market; for a position it is generally quantity times current price.

Material Nonpublic Information (MNPI)(MNPI) Stocks

Important information not broadly available to investors that a reasonable investor would likely consider significant in making an investment decision.

MergerStocks

A transaction combining two companies into one legal or economic enterprise under agreed terms.

Minimum Bid Price RuleStocks

An exchange listing requirement that generally requires a listed stock to maintain a minimum closing bid price for a specified period to remain compliant.

Market StructureStocksCrypto

The organization of price swings, ranges, trends, support, resistance, and liquidity behavior used to describe how a market is moving.

MeanStocksCrypto

The arithmetic average of a set of observations, often used as a reference level in technical and statistical analysis.

Measured MoveStocksCrypto

A target technique that projects the size of a prior price swing or pattern segment from a later breakout point. Full guide →

Median PriceStocksCrypto

A chart-derived price commonly calculated as the midpoint of a bar's high and low; it is distinct from the statistical median of a price sample.

Mitigation BlockStocksCrypto

ICT-style trader jargon for a price area believed to represent institutional re-entry or position adjustment; there is no standardized market definition.

MomentumStocksCrypto

The strength and persistence of price change over a defined period, measured through returns, rate of change, or other indicators. Full guide →

Momentum OscillatorStocksCrypto

An indicator that transforms recent price changes into a bounded or unbounded series intended to identify momentum strength, acceleration, or extremes.

Money Flow Index (MFI)(MFI) StocksCrypto

A momentum oscillator combining price and volume to estimate buying and selling pressure, often described as a volume-weighted analogue to RSI.

Moving Average EnvelopeStocksCrypto

Upper and lower bands set a fixed percentage or amount above and below a moving average. Full guide →

Moving Average RibbonStocksCrypto

A group of moving averages with different lookbacks plotted together to visualize trend alignment, compression, and dispersion. Full guide →

Moving Average StackStocksCrypto

A condition in which multiple moving averages are ordered consistently from fastest to slowest, often used as a trend filter.

Moving VWAP(MVWAP) StocksCrypto

A VWAP calculated over a rolling window rather than from a fixed session or anchor point.

MintingCrypto

The process of creating or issuing new units of a coin or token under a blockchain protocol's predefined rules, such as block rewards or a smart contract's token-generation function.

Municipal Bond(muni bond, muni) Stocks

A municipal bond, or 'muni,' is a debt security issued by a state, city, county, or other local government entity to fund public projects such as schools, roads, or utilities. Interest income from most municipal bonds is exempt from federal income tax, and often from state and local tax as well if the investor resides in the issuing state, which is why munis typically pay lower stated yields than comparable taxable bonds. Municipal bonds are generally categorized as either general obligation bonds, backed by the issuer's taxing power, or revenue bonds, backed by income from a specific project. Full guide →

Mortgage REIT(mREIT) Stocks

A mortgage REIT (mREIT) is a real estate investment trust that, instead of owning physical property, generates income primarily by originating or purchasing mortgages and mortgage-backed securities and earning the spread between its borrowing costs and the interest income those assets produce. Mortgage REITs typically use significant leverage to amplify returns, which makes their earnings and dividends considerably more sensitive to changes in interest rates and credit spreads than equity REITs. Their share prices and payouts can be volatile during periods of rapid rate change or credit stress.

Married Put(Protective Married Put) StocksOptions

A protective put purchased in the same transaction as the underlying shares, establishing a floor on the stock position from day one; economically identical to a protective put but distinguished by simultaneous execution, which under IRS rules can affect the stock's holding period for tax purposes. Full guide →

Mini OptionStocksOptions

A standardized options contract covering 10 shares of the underlying instead of the standard 100, letting traders take smaller, more granular positions on high-priced stocks.

maximum employmentStocksCrypto

One half of the Federal Reserve's dual mandate: the highest level of employment the U.S. economy can sustain without generating persistent upward pressure on inflation; the Fed has no fixed numerical target and instead assesses a broad range of labor-market indicators to judge it. Full guide →

median CPIStocksCrypto

A core-inflation measure published by the Federal Reserve Bank of Cleveland that reports only the price change of the single CPI component sitting at the exact middle (50th percentile) of that month's distribution of component price changes, filtering out both positive and negative outliers symmetrically; it is the methodological precursor to the Dallas Fed's trimmed mean PCE. Full guide →

Marginal VaRStocksOptionsFuturesCrypto

The sensitivity of portfolio Value at Risk to a small change in the size of a specific position, showing how much total risk would change per additional dollar invested in that position. Full guide →

Minimum-Variance Hedge RatioStocksFuturesCrypto

The hedge ratio that minimizes the variance of a hedged position's value, calculated from the correlation between the hedging instrument and the exposure and the ratio of their volatilities. Full guide →

Macro Hedge(macrohedge) StocksFuturesCryptoOptions

A hedge applied at the portfolio or firm level against broad market, interest rate, currency, or economic risk, rather than hedging individual positions one at a time. It is cheaper and simpler to run than a position by position program, and it leaves idiosyncratic risk in place by design. Accounting standards impose strict documentation and effectiveness tests before such a hedge qualifies for hedge accounting treatment. Full guide →

Managed MoneyFutures

A trader classification in the CFTC’s disaggregated Commitments of Traders report covering registered commodity trading advisors, commodity pool operators, and similar money managers trading futures on behalf of clients without a direct tie to the underlying physical commodity.

Micro E-mini FuturesFutures

A further-reduced-size class of futures contracts, typically one-tenth the notional size of the corresponding E-mini contract, giving smaller accounts finer-grained exposure and position sizing on major stock index, and other, futures.

Market Access Rule(Rule 15c3-5) Stocks

SEC Rule 15c3-5, which requires broker-dealers providing customers market access, including sponsored access, to establish risk management controls that screen orders before they reach an exchange rather than relying on post-trade review.

Municipal Bond Fund(muni fund, muni bond ETF) Stocks

A mutual fund or ETF that holds bonds issued by state and local governments, whose interest income is typically exempt from federal income tax and sometimes state tax for residents of the issuing state.

Money Market Fund(money market mutual fund) Stocks

A mutual fund that invests in high-quality, short-term debt instruments such as Treasury bills and commercial paper, aiming to maintain a stable share price while providing liquidity and modest yield. Full guide →

MSCI World Index(MSCI World) Stocks

A market-capitalization-weighted index covering large- and mid-cap stocks across roughly two dozen developed-market countries, used as a benchmark for globally diversified developed-market equity funds. It excludes emerging markets, which are instead tracked by companion indices such as MSCI Emerging Markets.

Mass IndexStocksCrypto

A volatility indicator developed by Donald Dorsey that measures the widening of the trading range between high and low prices to flag potential trend reversals, without regard to price direction.

McGinley DynamicStocksCrypto

An adaptive moving average developed by John McGinley that automatically adjusts its smoothing speed based on the rate of price change, hugging price more closely than a fixed-period SMA or EMA in both fast and slow markets.

Market Facilitation Index(BW MFI) StocksCrypto

A volatility indicator developed by Bill Williams that measures the market's willingness to move price for a given unit of volume, calculated as the price range divided by volume, and read by tracking its bar-to-bar change rather than its absolute level.

multi-collateral vault(multi-collateral CDP) CryptoDeFi

A collateralized debt position that accepts more than one type of asset as backing for a single loan, letting a borrower combine multiple collateral types to meet a protocol's required collateralization ratio instead of relying on one asset alone. Full guide →

Multifamily Property(apartment property) Stocks

A multifamily property is a residential building containing multiple separate rental units under one roof or one ownership, ranging from duplexes to large apartment complexes. Because rental income is spread across many units, a single vacancy has a smaller impact on total cash flow than with a single-family rental. Properties with five or more units are classified as commercial real estate for lending and valuation purposes and are typically underwritten on net operating income rather than comparable sales.

Mortgage CalculatorStocks

A mortgage calculator estimates a loan's monthly principal-and-interest payment from the loan amount, interest rate, and term, and often adds property taxes, insurance, and HOA dues to project a full monthly housing payment. Real estate investors use it to size the debt service portion of a rental property's expected cash flow before making an offer.

Mineral RightsStocks

Mineral rights are the legal right to explore for, extract, and profit from subsurface resources such as oil, gas, coal, and metals beneath a parcel of land. In many U.S. jurisdictions, mineral rights can be severed from surface rights and owned, leased, or sold separately from the land itself, meaning a landowner does not automatically control what's below the surface unless they also hold the mineral estate.

Mineral RoyaltiesStocks

Mineral royalties are periodic payments made to the owner of mineral rights, calculated as a percentage of the value or volume of minerals (such as coal, metals, or aggregate) extracted and sold from their property, in exchange for allowing a mining operator to extract them. The royalty owner bears no operating or extraction cost but also has no control over production decisions, and payments rise and fall with commodity prices and the pace of extraction.

Music RoyaltiesStocks

Music royalties are payments made to songwriters, composers, and rights holders when their music is streamed, broadcast, performed, synced to film or advertising, or otherwise used, and they are typically split between mechanical royalties (reproduction), performance royalties (public performance/broadcast), and sync royalties (use in film, TV, or ads). Investors can buy income-generating rights to music catalogs, directly or through funds, seeking cash flows that are largely uncorrelated with broader financial markets since they depend on listener demand rather than economic cycles.

Master Limited Partnership(MLP) Stocks

A master limited partnership is a publicly traded partnership, common in the energy and pipeline infrastructure sector, that combines the tax advantages of a partnership (income passes through to unit holders without entity-level tax) with the liquidity of a publicly traded security. To qualify, at least 90% of an MLP's gross income must come from qualifying sources such as natural resource extraction, processing, or transportation; MLP investors receive an IRS Schedule K-1 rather than a 1099-DIV and should be aware that MLP units are generally unsuitable for tax-advantaged retirement accounts because of unrelated business taxable income (UBTI) rules.

MetalsStocksFutures

The broad commodity category covering precious metals (gold, silver, platinum, palladium) and base/industrial metals (copper, aluminum, zinc, nickel), each traded on dedicated futures markets such as COMEX and the London Metal Exchange. Precious metals are driven more by investment and monetary demand, while base metals track industrial production and construction activity more closely.

MidstreamStocks

The segment of the oil and gas industry that transports, stores, and processes crude oil and natural gas between production sites and refineries or end markets: pipelines, storage terminals, and processing plants. Midstream companies typically earn fee-based revenue for moving volumes rather than owning the commodity outright, giving them more stable, less commodity-price-sensitive cash flows than upstream producers.

MLP(master limited partnership) Stocks

A publicly traded partnership, common in the midstream energy sector, that avoids corporate-level income tax as long as at least 90% of its gross income comes from qualifying sources such as natural resource extraction, processing, and transportation. MLP investors receive a Schedule K-1 rather than a Form 1099, and most distributions are treated as a tax-deferred return of capital that reduces the holder's cost basis rather than being taxed immediately.

matching contributionStocks

The general term for any employer retirement-plan contribution formula that is conditioned on, and calculated as a function of, the employee's own elective deferrals. Matching contributions can be structured as a fixed match, a tiered match, or a discretionary match the employer sets annually, and they are distinguished from non-elective employer contributions, which are made regardless of whether the employee defers anything.

Mega Backdoor RothStocks

A strategy available only in 401(k) plans that permit both after-tax, non-Roth contributions above the standard elective deferral limit and in-plan Roth conversions or in-service withdrawals, allowing a participant to move substantially more money into Roth-style savings than the regular 401(k) or IRA limits alone allow. After-tax dollars are converted to Roth as soon as possible after contribution to minimize any taxable earnings that accrue before the conversion.

maturity(maturity date) Stocks

Maturity is the date on which a bond's principal (face value) becomes due and is repaid to the bondholder, ending the issuer's obligation to make further interest payments. Bonds are commonly grouped by original maturity into short-term (under 3 years), intermediate-term (3-10 years), and long-term (10+ years) categories, with longer maturities generally carrying more interest-rate risk. Time to maturity, alongside coupon rate, is a primary driver of a bond's duration and price sensitivity to interest-rate changes.

modified durationStocks

Modified duration estimates the approximate percentage change in a bond's price for a 1 percentage point change in yield, serving as a practical measure of interest-rate risk. It is derived from Macaulay duration (the weighted-average time to receive a bond's cash flows) adjusted for the bond's yield, and higher modified duration means greater price sensitivity to rate changes. Longer maturities, lower coupons, and lower yields all tend to increase modified duration, which is why zero-coupon bonds have the highest duration relative to their maturity.

money market account(MMA) Stocks

A money market account is an interest-bearing deposit account offered by banks and credit unions that typically pays a higher rate than a standard savings account while still offering check-writing privileges or a debit card, along with FDIC or NCUA insurance up to standard limits. Rates are usually variable and tied to prevailing short-term interest rates, and accounts may require a higher minimum balance to earn the top rate or avoid a monthly fee. A money market account is a bank deposit product and should not be confused with a money market mutual fund, which is a security that invests in short-term debt and is not FDIC-insured.

mandatory convertible(mandatory convertible security) Stocks

A mandatory convertible is a convertible security, usually preferred stock, that automatically converts into a predetermined number of common shares on a set future date, rather than giving the holder discretion over whether and when to convert. Mandatory convertibles typically pay a higher dividend rate than optional convertibles to compensate holders for giving up the choice not to convert, and the eventual number of shares received is often set within a range that varies based on the stock's price at conversion. Because conversion is guaranteed rather than optional, mandatory convertibles carry more direct equity-like risk than traditional convertible preferred stock.

market-linked note(MLN) Stocks

A market-linked note is a structured note whose return is tied to the performance of a specified market benchmark, such as an equity index, basket of stocks, or commodity, rather than paying a traditional fixed coupon. The payoff formula can include features like caps on upside, participation rates above or below 100% of the underlying's move, and downside buffers or barriers, all set at issuance. As with other structured notes, the investor is exposed to the credit risk of the issuing bank in addition to the performance of the underlying market benchmark.

managed accountStocks

A managed account is an investment account where a professional advisor or investment manager makes buy and sell decisions on the client's behalf, typically for a fee based on a percentage of assets under management, rather than the client executing trades personally. Managed accounts can be either discretionary, where the advisor can trade without prior client approval for each transaction, or nondiscretionary, where the advisor must obtain the client's consent before each trade. Managed accounts differ from mutual funds and ETFs in that the underlying securities are held directly in the client's own name, which can offer more tax-management flexibility, such as customized tax-loss harvesting.

MOIC(multiple on invested capital) Stocks

A private fund performance metric measuring total value returned relative to capital invested, calculated as the sum of realized and unrealized value divided by paid-in capital. Unlike IRR, MOIC ignores the timing of cash flows, so it is typically used alongside time-weighted metrics rather than on its own.

mezzanine debt(mezzanine financing) Stocks

A hybrid form of financing that ranks below senior secured debt but above equity in a company's capital structure, often including warrants or conversion rights that give the lender upside if the company performs well. Mezzanine debt carries higher interest rates than senior debt to compensate for its subordinated, unsecured, or partially secured position. Full guide →

middle-market lending(middle market lending) Stocks

Lending to companies typically too large for small-business loans but too small to access syndicated bank loans or public bond markets efficiently: generally firms with revenue in the tens to low hundreds of millions of dollars. Middle-market lending is a core strategy for direct lenders and business development companies, which fill the financing gap left by large banks. Full guide →

managed futuresStocksFutures

An alternative investment strategy in which professional money managers, called commodity trading advisors, trade futures and options contracts across currencies, interest rates, commodities, and equity indices, often using systematic trend-following models. Managed futures funds are typically structured to have low correlation with traditional stock and bond markets, historically performing well during sustained market downtrends.

marketplace lendingStocks

The broader industry term for online lending platforms that connect borrowers with a mix of retail investors, institutional investors, and sometimes their own balance sheet capital, encompassing both consumer peer-to-peer lending and business lending. Marketplace lending platforms typically underwrite and service loans while investors provide the funding, earning a servicing fee for their role.

merger target(de-SPAC target) Stocks

The private operating company that a special purpose acquisition company identifies and agrees to merge with, taking that company public in what is commonly called a 'de-SPAC' transaction. Unlike a traditional IPO, the merger target negotiates its valuation directly with the SPAC sponsor rather than through investment-bank bookbuilding and roadshow demand.

Mutual FundStocks

A pooled investment vehicle that collects money from many investors and invests it in a portfolio of stocks, bonds, or other securities on their behalf, managed by a professional adviser. Unlike an ETF, a mutual fund is bought and sold directly from the fund company at end-of-day net asset value (NAV) rather than traded intraday on an exchange. Full guide →

Mutual Fund vs. ETF(mutual funds vs ETFs) Stocks

Mutual funds and ETFs both pool investor money into a diversified portfolio, but a mutual fund is priced and traded once daily at end-of-day NAV directly through the fund company, while an ETF trades continuously on an exchange at market prices that can vary slightly from NAV. ETFs also typically offer lower expense ratios, greater tax efficiency (via in-kind creation/redemption that avoids triggering capital-gains distributions), and no investment minimums beyond one share, while mutual funds can offer automatic investment plans and, for actively managed strategies, more manager flexibility without daily portfolio disclosure.

Managed Distribution(managed distribution plan, MDP) Stocks

A policy under which a closed-end fund commits to paying shareholders a fixed periodic distribution (often expressed as a set percentage of NAV per year) regardless of whether the fund's actual income and realized gains are sufficient to cover it in a given period. When distributions exceed what the fund actually earned, the shortfall is paid out as return of capital, which reduces the fund's NAV per share going forward and can mask an unsustainable payout if investors read the yield alone as investment income.

Market TimingStocks

An investment approach that attempts to buy and sell based on predictions of short-term market direction (moving into cash before a decline or into stocks before a rally), rather than staying invested through a full cycle. Extensive research shows most investors and professional managers who try to time the market underperform a simple buy-and-hold approach, largely because missing just a handful of the market's best days (which often cluster near its worst days) severely damages long-run returns.

Major Pair(Major Currency Pair) Stocks

A major pair is a currency pair that includes the U.S. dollar paired with one of the world's other most heavily traded currencies, such as the euro, Japanese yen, British pound, Swiss franc, Canadian dollar, or Australian dollar. Major pairs account for the large majority of global forex trading volume and typically have the tightest bid-ask spreads.

Minor Pair(Cross Currency Pair, Cross Pair) Stocks

A minor pair, also called a cross pair, is a currency pair involving two major currencies other than the U.S. dollar. These pairs trade in lower volume than major pairs and generally carry wider spreads.

MarkupStocks

A markup is the amount a broker-dealer adds to the price of a security it sells to a customer from its own inventory, above the prevailing market price, when acting as principal rather than agent in the trade. FINRA rules require markups to be fair and reasonable and, for many fixed-income transactions, to be disclosed to the customer on the trade confirmation.

MarkdownStocks

A markdown is the amount a broker-dealer subtracts from the price it pays a customer for a security it buys into its own inventory, below the prevailing market price, when acting as principal rather than agent. Like markups, markdowns on many fixed-income transactions are subject to FINRA fair-pricing rules and disclosure requirements.

Margin Loan(Margin Borrowing) Stocks

A margin loan is money borrowed from a brokerage firm, using the securities in an investor's account as collateral, to purchase additional securities or for other purposes. Margin loans amplify both gains and losses and can trigger a margin call requiring the investor to deposit more cash or securities, or face forced liquidation, if the account's equity falls below required maintenance levels.

Mortgage Note(Promissory Note, Note Investing) Stocks

A mortgage note is the promissory note in a real estate loan, the legal document in which a borrower promises to repay a specified amount under agreed terms, secured by a mortgage or deed of trust on the property. Note investors buy these notes, either performing (borrower current on payments) or non-performing (borrower in default), from originating lenders, becoming the party entitled to collect the borrower's payments or pursue foreclosure.

money market deposit accountStocks

A money market deposit account (MMDA) is the formal name for the bank or credit union deposit product commonly called a money market account: an interest-bearing deposit account that typically pays a higher variable rate than a standard savings account while retaining check-writing or debit-card access and limited monthly transfers. It is a bank liability, not a security, and is insured by the FDIC (at banks) or the NCUA (at credit unions) up to the standard $250,000 per depositor, per institution, per ownership category. Full guide →

Market-cap-weighted indexStocks

A market-cap-weighted index assigns larger weights to companies with larger market capitalizations, subject to the index provider’s eligibility, float, and capping rules.

mezzanine loanStocks

A mezzanine loan sits between senior debt and equity in the capital structure, paid only after senior lenders and before shareholders. It usually carries a high cash coupon plus payment-in-kind interest that accrues rather than being paid, and often warrants or a conversion feature that gives the lender part of the equity upside. In real estate it is secured by a pledge of the ownership interests in the property-holding entity rather than by a mortgage, so enforcement means taking over the entity rather than foreclosing on the building.

municipal bond insuranceStocks

Municipal bond insurance is a guarantee bought by a state or local issuer under which a monoline insurer promises to pay scheduled interest and principal if the issuer fails to. The bond then carries the insurer credit rating rather than its own, which historically lowered borrowing costs for smaller issuers by more than the one-time premium. The 2008 crisis, when several insurers were downgraded after guaranteeing structured credit alongside municipal debt, sharply reduced use of the product and showed that the guarantee is only as strong as the guarantor.

Macroeconomic policyStocksCrypto

Macroeconomic policy is government and central bank action aimed at the economy as a whole rather than at particular firms or markets. Its two main arms are fiscal policy, which uses taxation, spending and borrowing, and monetary policy, which uses interest rates, balance sheet operations and reserve requirements. Objectives typically include price stability, high employment, sustainable growth and a manageable external position. The arms interact: fiscal expansion tends to push interest rates higher unless monetary policy accommodates it, and the mix affects exchange rates and asset prices.

Money supplyStocksCrypto

Money supply is the total stock of money circulating in an economy, reported by central banks in nested aggregates. The narrowest counts currency in circulation and balances that can be spent immediately; broader measures add savings deposits, small time deposits and retail money market fund shares. Definitions differ by country and are revised when payment habits change. Growth in the aggregates is watched as a signal about credit conditions and future nominal spending, though the relationship between money growth and inflation is unstable over short horizons.

market price of riskStocksCrypto

The market price of risk is the extra expected return investors demand for each unit of volatility they accept in a given risk factor. It equals the expected return above the risk-free rate divided by the standard deviation of that factor, which is the Sharpe ratio expressed as a property of the factor rather than of one portfolio. It appears in derivative pricing as the adjustment that converts real-world expected drift into the risk-neutral drift used to value contingent claims.

Market IndicatorsStocksCrypto

Market indicators are statistics computed across many securities to describe the condition of a market as a whole rather than of a single instrument. Breadth measures such as the advance decline line, the percentage of stocks above a moving average and new highs versus new lows show how broadly a move is supported. Sentiment measures such as the put call ratio and volatility indices show positioning and expected risk. They are read as context around price rather than as standalone signals, and they diverge from headline indices when leadership narrows.

Market Value of EquityStocks

Market value of equity is the total price the market puts on a company ownership, computed as the share price multiplied by shares outstanding, and it is the same figure as market capitalization. It differs from book value of equity, which is the accounting residual of assets minus liabilities recorded largely at historical cost. The gap between the two reflects expectations about future profitability and assets never recorded on the balance sheet, such as internally developed brands and research, and it varies enormously by industry.

Mortgage-Backed Security(MBS) Stocks

A mortgage-backed security passes the principal and interest collected on a pool of home loans through to investors. Agency versions carry a guarantee against credit loss from Ginnie Mae, Fannie Mae or Freddie Mac, so the dominant risk is prepayment: borrowers refinance when rates fall, returning capital early at exactly the moment it must be reinvested at lower yields, which is why these bonds show negative convexity. Non-agency versions carry no such guarantee and are tranched so that junior classes absorb credit losses first.

MortgagorStocks

The mortgagor is the borrower who pledges real property as security for a loan, granting the lender a lien over it while retaining ownership and use. The lender holding that lien is the mortgagee. The mortgagor obligations run beyond making payments to include maintaining insurance, paying property taxes and preserving the condition of the building, and breaching any of them can constitute default. If payments stop, the mortgagee may enforce the lien through foreclosure under the procedure the relevant state or country prescribes.

multifactor portfolioStocksCrypto

A portfolio built to hold exposure to several return factors at once, such as value, momentum, quality, and low volatility, rather than to a single one. Because the factors have historically underperformed at different times, combining them shortens and shallows any one factor's drawdown. Construction matters: blending separate single-factor sleeves can leave holdings that offset each other, while scoring securities on all factors at once avoids that cancellation.

Monte CarloStocksCrypto

A method that estimates the distribution of an uncertain outcome by simulating a process thousands of times with randomly drawn inputs, then reading the results as a distribution rather than a single answer. Portfolio uses include retirement withdrawal analysis, option pricing, and risk measurement. The output is only as good as the assumed return distribution and correlations, and conventional assumptions understate how often extreme moves occur.

Mandatory Provident FundStocks

The Mandatory Provident Fund is Hong Kong's compulsory retirement savings system. Employers and employees each contribute a percentage of relevant income between a minimum and a maximum level, into a scheme chosen by the employer, where the employee selects among approved constituent funds. Benefits are generally preserved until the statutory retirement age, with early withdrawal allowed on grounds such as permanent departure from Hong Kong, total incapacity or terminal illness. Employees may transfer benefits accrued from their own contributions to a scheme of their choosing. Contribution levels are set by regulation.

Markets in Financial Instruments Directive IIStocks

Markets in Financial Instruments Directive II is the European Union framework governing investment firms, trading venues and the conduct of securities business. It extends pre-trade and post-trade transparency to asset classes beyond equities, pushes standardized derivatives onto organized venues, requires firms to record communications and report transactions to regulators, and tightens product governance and suitability obligations. It also separates payment for investment research from dealing commission, requires disclosure of costs and charges, and sets best execution obligations that firms must be able to evidence.

Master Recording RoyaltyStocks

A master recording royalty is income earned from the use of a specific sound recording, as distinct from the underlying song. The owner of the master, typically a record label or an artist who financed the recording, receives it when the recording is streamed, downloaded, sold physically or licensed into film, advertising or television, and pays the recording artist a contractual share after recoupable costs. Every commercial use of a recording therefore generates two separate royalty streams: one for the master and one for the composition it embodies.

Mechanical RoyaltyStocks

A mechanical royalty is paid to the songwriter and publisher for reproduction of a musical composition, whether as a physical copy, a permanent download or an interactive stream. It is owed by whoever makes the copy, so a label pays it on records sold and a streaming service pays it on the copies made to deliver on-demand plays. In the United States a compulsory license lets anyone reproduce a previously released song at a rate set periodically by the Copyright Royalty Board, and a designated collective administers blanket licensing for digital services.

Mobile App AcquisitionStocks

Mobile app acquisition is the purchase of a published application together with its store listings, source code, user base and monetization accounts. Buyers value it on a multiple of trailing net profit, weighted by how revenue is earned (subscriptions retain better than one-off purchases or advertising), retention and churn cohorts, review ratings, and how much install volume is paid rather than organic. Transfer requires moving the developer account or the app itself under the store's rules, plus the analytics, advertising and payment integrations, any of which can break.

Mortality BondStocks

A mortality bond transfers the risk of a sharp, unexpected rise in deaths from a life insurer to capital markets. Principal is reduced or lost if a published mortality index for a defined population exceeds an agreed level over the risk period, typically as a result of a pandemic or a major catastrophe. It is the mirror image of a longevity bond, which pays out when people live longer than assumed. Investors receive a spread for accepting the exposure, and the risk is largely independent of financial market conditions.

Mortgage Note InvestingStocks

Mortgage note investing is the purchase of the promissory note and the mortgage or deed of trust securing it, so the buyer becomes the lender and receives the borrower's payments. Notes are bought from banks, funds and private originators, at par or at a discount reflecting payment history, interest rate, remaining term and the loan-to-value ratio against the property. The investor's protections are the payment stream and, if the borrower defaults, the right to enforce against the property, which is governed by state foreclosure law and takes time.

Music Royalty InvestmentStocks

Music royalty investment is the purchase of the right to receive future royalty income from songs or recordings, either by acquiring the copyright itself or by buying an income stream while the writer keeps ownership. Buyers value a catalogue on a multiple of recent annual income, adjusted for the decay curve of older tracks, the mix of streaming, performance, synchronization and mechanical income, and how far earnings are concentrated in a few titles. Income depends on continued consumption and on collection society and streaming rate decisions, which are set administratively.

Matched BookStocks

A matched book is a dealer's position in which borrowing and lending are offset so that maturities, amounts and rate bases largely cancel. A repo desk running one lends cash against collateral for a given term and simultaneously borrows the same amount for the same term, earning the spread between the two rates while carrying little exposure to a change in interest rates. The residual risks are not zero: the desk still faces counterparty default, collateral value changes, and the chance that a supposedly matched leg unwinds early.

Mortgage-related assetsStocks

Mortgage-related assets are financial assets whose value and cash flows derive from residential or commercial mortgage loans. The category spans whole loans held on a lender's balance sheet, agency and private-label mortgage-backed securities, collateralized mortgage obligations that carve a pool's cash flows into classes with different prepayment exposure, mortgage servicing rights, and derivatives referencing mortgage indices. What links them is sensitivity to two variables ordinary bonds lack: borrower prepayment, which shortens the asset when rates fall, and default behavior, which depends heavily on house prices.

manufactured housingStocks

Manufactured housing is residential units built in a factory to a national construction code and transported to a site, rather than constructed in place. The distinction carries legal and financial consequences: units are frequently titled as personal property rather than real estate, which changes lending terms, and financing often runs through chattel loans with higher rates and shorter terms than a mortgage. For investors the exposure is usually to the land beneath the homes rather than to the homes themselves, since residents commonly own their unit and rent the site it occupies.

manuscriptsStocks

Manuscripts are handwritten or typed documents, including letters, diaries, drafts, and musical scores, collected for their content and for their association with the writer. Value depends on who wrote it, what the text actually says, whether it is signed, its length, its condition, and whether the piece is unpublished or reveals something new. A routine signature is worth far less than a substantive letter on an important subject. Authentication rests on handwriting comparison, paper and ink analysis, and documented provenance. Libraries and archives are significant buyers alongside private collectors.

marinasStocks

Marinas are waterfront properties that rent boat slips, dry storage, and moorings, usually adding service revenue from fuel, repairs, and food. Income is driven by slip occupancy and the rate per foot of vessel length, with strong seasonality in most climates. Supply is constrained because permitting new waterfront development and dredging is difficult, which supports pricing at established sites. Risks include storm damage and insurance cost, recurring dredging and seawall capital requirements, environmental regulation of fuel handling and runoff, and dependence on submerged land leases that must be renewed.

market-linked CDsStocks

A market-linked certificate of deposit is a bank deposit whose return is tied to the performance of an index, basket, or other reference rather than to a fixed interest rate, while the principal remains a deposit obligation of the issuing bank and is generally eligible for deposit insurance up to applicable limits. Terms specify a participation rate, a cap on credited return, and the observation dates used to measure the reference. Holders usually receive no interim interest, face early withdrawal restrictions, and take the bank's credit risk on any amount above insured limits.

master-feeder structuresStocks

A master-feeder structure places all trading in a single master fund and sells interests in it through two or more feeder funds tailored to different investor groups. A typical arrangement pairs an onshore feeder for domestic taxable investors with an offshore feeder for non-resident and tax-exempt investors, both allocating into the same portfolio. The design gives one trading book, one set of prime brokerage relationships, and consistent performance across feeders while keeping tax and regulatory treatment separate. Costs include duplicated audits and administration, plus investments that suit one feeder's investors but not the other's.

medical officeStocks

Medical office buildings are properties leased to physician practices, outpatient clinics, imaging providers, and ambulatory surgery centers. Leases run longer than conventional office because tenants install fixed improvements such as plumbing, shielding, and specialized power, which raises relocation cost and supports retention. Demand tracks healthcare utilization rather than office employment, and buildings on or adjacent to a hospital campus trade differently from off-campus locations. Underwriting examines the credit of the health system or practice group, referral patterns, and reimbursement pressure on the tenants' own revenue.

melt valueStocks

Melt value is what the metal in a coin, bar, or piece of jewelry would be worth if refined back to bullion, calculated as the item's weight multiplied by its fineness and by the current spot price of that metal. It sets a practical floor under items carrying no collector premium and is the reference against which numismatic or design premiums are measured. Refining charges, assay costs, and dealer bid-ask spreads mean the amount actually realized on sale sits below the theoretical figure.

mint stateStocks

Mint state describes a coin that never entered circulation and shows no wear on its highest points, corresponding to grades 60 through 70 on the widely used seventy point numeric scale. Within that band the number reflects the count and location of contact marks from handling and bagging, strike quality, and luster, not wear. The difference between adjacent mint state grades can change value substantially for scarce issues, which is why examples are usually submitted to third-party grading services that encapsulate the coin with the assigned grade.

mobile-home parksStocks

Mobile-home parks, also called manufactured housing communities, are properties that rent prepared lots to residents who own their own homes. The owner supplies land, roads, and utility connections and often bills water and sewer back to residents, so operating cost per lot is low relative to apartments. Turnover is unusually low because moving a home costs thousands of dollars and can damage it, which supports occupancy. Key risks are rent regulation, aging utility infrastructure, restrictions on new park development, and the concentration of income in a single lot rate.

monetization multipleStocks

A monetization multiple expresses the price of a cash-generating digital or intangible asset as a multiple of the profit it produces over a stated period, most often trailing twelve month or trailing monthly net profit. Buyers of websites, apps, and content businesses quote it as a number of months or years of earnings, so a 36x monthly multiple equals three years of current profit. The multiple widens with revenue diversification, traffic that does not depend on one platform, longer operating history, and transferable systems, and narrows where earnings are concentrated or volatile.

multi-asset fundsStocks

Multi-asset funds hold more than one asset class in a single vehicle, typically combining equities, bonds, and cash, and sometimes real assets, credit, or alternatives. The manager sets a strategic allocation defining long-run weights, may vary around it tactically, and rebalances back toward targets as markets move. Variants include fixed-weight balanced funds, risk-targeted ranges, and dynamic strategies that adjust exposure with volatility or valuation. Investors gain diversification and automatic rebalancing in one holding, though the layered structure can obscure total cost and make underlying exposures harder to see.

music catalogsStocks

A music catalog is a portfolio of rights in recorded songs and compositions that generates royalties whenever the works are streamed, broadcast, performed, sold, or licensed into film, television, advertising, and games. Two distinct copyrights exist per song: the composition, owned by writers and publishers, and the sound recording, owned by the label or artist, and a catalog may hold either or both. Buyers value catalogs on a multiple of net publisher share or annual royalty income, adjusted for the decay pattern of streaming revenue and the mix of recurring versus one-off license fees.

Making a MarketStocks

Making a market is the activity of continuously quoting both a bid and an offer in a security and standing ready to deal at those prices in a stated size. The quoting firm earns the spread between the two, and takes on inventory risk while the position is unbalanced, hedging or laying it off as flow arrives. Obligations vary by venue: some exchanges impose quoting width and presence requirements on designated firms, while over-the-counter dealers quote at their own discretion.

Market Segmentation TheoryStocks

Market segmentation theory holds that the yield curve is set by supply and demand within separate maturity segments rather than by expectations of future short rates, because major participants have strong maturity preferences and do not move freely along the curve. Pension funds and insurers seek long-dated assets to match liabilities, while banks and money funds concentrate at the short end. Under this view the shape of the curve reflects imbalances in each bucket, and a related version allows investors to shift for sufficient extra yield.

Market Value AddedStocks

Market value added measures how much wealth a company has created above the capital its investors put in, calculated as the market value of its debt and equity minus the capital contributed. A positive figure says the market expects the business to earn more than its cost of capital on that base; a negative figure says the opposite. Because market value already discounts expected future performance, the measure is forward looking and moves with sentiment as well as with results.

Money BrokerStocks

A money broker is an intermediary that matches lenders and borrowers in the wholesale money and foreign exchange markets without taking the resulting position onto its own books. It earns brokerage on each match, preserves the anonymity of both sides until the deal is agreed, and helps banks find counterparties within their credit limits. Voice broking has largely given way to electronic platforms, though brokers remain active where trades are large, structured or in less liquid currencies.

Money Market InstrumentStocks

A money market instrument is a short-term debt obligation, conventionally with an original maturity of a year or less, used by governments, banks and companies to manage cash. The main types are Treasury bills, commercial paper, certificates of deposit, bankers acceptances and repurchase agreements. They trade at a discount to face value or pay a single interest amount at maturity, carry little interest rate sensitivity because of the short term, and are valued chiefly for liquidity and capital preservation rather than yield.

Mutual Offset SystemStocks

A mutual offset system is an arrangement between two futures exchanges that lets a position opened on one be closed on the other, so a trader can transfer exposure across time zones without holding separate offsetting positions. Trades executed at the second exchange are transferred back to the first for clearing, leaving a single position at one clearing house. The link between the Chicago Mercantile Exchange and the Singapore exchange, launched in 1984, was the first such arrangement.

Monetary neutralityOptionsStocks

Monetary neutrality is the proposition that a change in the money supply alters nominal variables such as prices, wages and the exchange rate, while leaving real variables such as output, employment and relative prices unchanged. Most economists treat it as a long-run property rather than a short-run one, since sticky prices and wages let monetary changes move real activity for a time. Superneutrality is the stronger claim that even the growth rate of money leaves real variables untouched.

mutual fund theoremStocks

The mutual fund theorem states that when investors share the same expectations and can borrow and lend at a risk-free rate, every one of them holds some combination of just two things: the risk-free asset and a single portfolio of risky assets that is the same for everyone. Risk tolerance decides only the split between the two, not the composition of the risky portfolio. This separation result, associated with James Tobin, is the theoretical case for holding a broad market portfolio and adjusting risk through cash or leverage.

Magic Formula InvestingOptionsStocks

Magic formula investing is a quantitative stock screening method popularised by investor Joel Greenblatt. It ranks companies on two measures: earnings yield, calculated as operating earnings divided by enterprise value, and return on capital, calculated as operating earnings divided by tangible capital employed. The two ranks are added and the lowest combined scores are bought as a diversified basket, held for about a year and refreshed. Financials and utilities are normally excluded because the ratios distort for them.

Market ExposureStocks

Market exposure is the amount of a portfolio at risk from movements in a particular market, sector, currency or factor, usually expressed in currency terms or as a percentage of total portfolio value. It can be measured gross, adding long and short positions together, or net, subtracting shorts from longs. Derivatives and leverage make exposure differ from money invested, so notional and delta-adjusted measures are used to capture the true sensitivity.

Market SentimentStocksCrypto

Market sentiment is the prevailing attitude of investors toward a market or security, describing whether participants are broadly optimistic (bullish) or pessimistic (bearish). It is inferred rather than observed directly, using indicators such as put-call ratios, volatility indexes, breadth measures, fund flows, short interest and survey data. Sentiment can hold prices away from fundamentals for extended periods, and extreme readings are often studied as contrarian signals rather than as confirmation. Full guide →

Mid-Cap FundStocks

A mid-cap fund is a pooled vehicle that invests mainly in companies whose market capitalisation falls between the large-cap and small-cap ranges, with the boundaries defined by the fund's chosen index provider and revised as markets grow. It may be actively managed or track a mid-cap index. This segment has historically sat between the two extremes on both volatility and liquidity, and funds disclose their capitalisation range and portfolio turnover in the prospectus.

Middle OfficeStocks

The middle office is the part of a financial firm that sits between the revenue-generating trading and sales desks and the back office that settles trades. It owns risk management, position and profit-and-loss reporting, trade capture and validation, collateral and margin management, compliance monitoring and model control. Its job is to measure and control exposure independently of the traders who create it, which is why its reporting lines are kept separate from the front office.

Modified Gross LeaseStocks

A modified gross lease is a commercial lease that splits operating costs between landlord and tenant instead of assigning them wholly to either. The tenant pays a single base rent that includes some expenses, typically property taxes, insurance and building maintenance, while paying separately for others such as its own utilities and cleaning. It sits between a full-service gross lease, where the landlord absorbs operating costs, and a triple net lease, where the tenant pays them all.

Morningstar Sustainability RatingStocks

The Morningstar Sustainability Rating is a fund-level score showing how much unmanaged environmental, social and governance risk a fund's holdings carry, based on Sustainalytics company ESG risk ratings weighted by portfolio position. Scores are compared with peers in the same global category and expressed as one to five globes, with more globes meaning lower assessed ESG risk. It measures the risk exposure of current holdings, not the manager's intention or the fund's real-world impact.

Mortgage BankerStocks

A mortgage banker is a lender that underwrites and funds mortgage loans with its own or borrowed capital, closing each loan in its own name. It typically sells the loan afterward into the secondary market to investors or agencies, often retaining the servicing rights and the fee income that comes with collecting payments. This differs from a mortgage broker, who arranges a loan between borrower and lender for a fee but does not fund it.

Multi-Factor ModelStocksCrypto

A multi-factor model explains an asset's return as the sum of its sensitivities to several systematic risk factors plus a residual specific to the asset. Written simply, return equals alpha plus beta1 times factor1 plus beta2 times factor2 and so on, plus an error term. Factors may be macroeconomic (inflation, rates), statistical, or fundamental characteristics such as size, value, momentum, quality and profitability. The model is used for risk decomposition, performance attribution and portfolio construction.

Multiples ApproachStocks

The multiples approach values a company by applying a valuation ratio observed on comparable businesses to the target's own financial measure. An analyst selects peers, computes ratios such as price to earnings, enterprise value to EBITDA or price to sales, takes a median or a range, and multiplies it by the target's corresponding metric. It is fast and market-based, but it depends entirely on whether the peer set is genuinely comparable in growth, margins, risk and accounting.

MusharakahStocks

Musharakah is an Islamic finance partnership in which two or more parties contribute capital to a venture and share profits according to a ratio agreed in advance, while losses are borne strictly in proportion to each partner's capital. Because the financier takes equity-like risk rather than charging interest, the structure complies with the prohibition on riba. Diminishing musharakah applies the idea to property finance: the customer buys out the financier's share gradually while paying rent on the remainder.

managed fundStocks

A managed fund pools money from many investors and employs a professional manager to invest it under a stated mandate, with each investor holding units or shares representing a proportional claim on the pooled assets. Value per unit is calculated by dividing the net assets by units on issue, and investors buy and sell at that price for an open-ended fund or on an exchange for a listed one. Costs include a management fee, transaction costs inside the portfolio and sometimes a performance fee, all of which reduce the return investors receive relative to the assets' gross performance. The term is used widely in Australia and New Zealand for what other markets call a mutual fund.

margin tradingStocks

Margin trading buys securities partly with money borrowed from the broker, using the securities themselves as collateral. The initial margin sets how much of the purchase the customer must fund, and maintenance margin sets the minimum equity that must remain in the account afterwards; when equity falls below it the broker issues a margin call, and if it is not met the broker may sell positions without further instruction. Borrowing magnifies both gains and losses relative to the cash committed, interest accrues on the loan balance, and a decline can require additional funds or produce a forced sale at an unfavourable price. Requirements are set by regulators and by broker house rules.

marginal revenueStocks

Marginal revenue is the change in total revenue from selling one additional unit, calculated as the change in total revenue divided by the change in quantity. Under perfect competition it equals the market price, because a single seller's output does not move the price. For a firm with pricing power the extra unit can only be sold by lowering the price on all units, so marginal revenue falls below price and declines as output rises. Profit is maximized where marginal revenue equals marginal cost, which is why a business with pricing power restricts quantity below the competitive level.

market if touched order(MIT order) StocksCrypto

A market if touched order rests until the market reaches a specified trigger price, at which point it becomes a market order and executes at whatever price is then available. It is placed on the favourable side of the current market, so a buy is entered below the current price to capture a pullback and a sell above it to capture a rally, which is the opposite orientation to a stop order. Because the resulting order is a market order, the trigger price is not the fill price and a fast move can produce meaningful slippage. Support for the type varies by venue and broker.

market on close order(MOC order) Stocks

A market on close order is submitted during the session but executes at the official closing price, participating in the exchange's closing auction rather than in continuous trading. Index funds and benchmark-tracking portfolios rely on it because their performance is measured against closing prices, so filling at any other level introduces tracking error. Exchanges impose an entry cut-off before the close and publish imbalance information in the run-up so that offsetting interest can be attracted. The trade-off is loss of control over price: the order will execute, but at whatever level the auction determines, and a large imbalance can move that level.

market sweepStocks

A market sweep is a rapid purchase of a large block of a target company's shares in the open market, typically executed immediately after a tender offer closes or is withdrawn, to lift the acquirer's stake toward control. The tactic works because the offer has already attracted arbitrageurs holding concentrated positions who will sell quickly at a modest premium. United States disclosure rules under the Williams Act and the tender offer definition constrain how such buying may be conducted, and case law has examined when rapid accumulation from a small group of professional holders amounts to a tender offer in substance.

Markov processStocksCrypto

A Markov process is a stochastic process in which the distribution of future states depends only on the current state, not on the path taken to reach it. That memoryless property is what makes many financial models tractable: geometric Brownian motion, short rate models and binomial trees all assume it, so a valuation can be computed by working backward from the terminal payoff using only the current level. It is also the mathematical form of the weak version of market efficiency, since a price whose future distribution depends only on its present value cannot be predicted from its own history. Adding path dependence, as an Asian or lookback option does, breaks the property.

merger accountingStocks

Merger accounting combines two companies by adding their book values together as if they had always been one entity, carrying assets and liabilities forward at existing amounts, restating prior period comparatives, and recognizing no goodwill. That contrasts with acquisition accounting, which identifies an acquirer, measures the consideration at fair value, revalues the acquired assets and liabilities, and records the excess as goodwill subject to impairment testing. Because the first method avoids the goodwill charge and can flatter reported earnings, standard setters withdrew it for general use, and current frameworks require the acquisition method for business combinations, leaving pooling-style treatment only for transactions between entities under common control.

mortgage debentureStocks

A mortgage debenture is a corporate debt instrument secured by a charge over the issuer's property and, in the United Kingdom form, often over its other assets as well. Security is what separates it from a plain debenture: holders can appoint a receiver or enforce against the charged assets if the issuer defaults, and they rank ahead of unsecured creditors over that collateral. The charge may be fixed on identified property or floating over a changing pool of assets that the company continues to use until an event of default crystallizes it. The added security is why such issues price tighter than the same company's unsecured debt.

mortgageeStocks

The mortgagee is the lender in a mortgage, the party that advances the money and takes a security interest in the property. The borrower who grants that interest is the mortgagor, and remembering which is which follows the pattern that the party ending in or is the one granting the right. On default the mortgagee may enforce its security through foreclosure or a power of sale under the relevant state or national law, applying the proceeds to the debt and costs and returning any surplus. Insurance policies on the property normally name the mortgagee so that loss proceeds are protected up to the outstanding balance.

multifactor risk modelStocks

A multifactor risk model explains and forecasts portfolio risk by attributing each security's return to a set of common factors plus a residual specific to the security. Factors may be macroeconomic, such as rates and inflation surprises, fundamental, such as size, value, momentum, quality and industry membership, or statistically extracted from the return covariance itself. Estimating factor exposures for each holding and a covariance matrix for the factors lets the model compute portfolio volatility, tracking error, marginal contribution to risk by factor, and the loss under a specified stress. Its accuracy depends on the estimation window and on whether the factor structure holds in the period being forecast.

multiple strike optionOptionsStocks

A multiple strike option is an exotic contract whose payoff depends on more than one strike level. In the multi-asset form each underlying has its own strike, and the payoff is determined by comparing the best or worst performer against its respective level, so correlation between the underlyings drives the price as much as their individual volatilities. Structures that reset or step the strike over the life of the contract are also described this way. Because the payoff cannot be decomposed into standard options, valuation generally requires simulation, and hedging needs sensitivity to each underlying and to the correlation assumption.

multilateral trading facility(MTF) StocksCrypto

A multilateral trading facility is a European venue that brings together multiple buying and selling interests in financial instruments under non-discretionary rules, producing binding contracts, without holding the status of a regulated market. The category was created by the Markets in Financial Instruments Directive to open share trading to competition beyond national exchanges, and operators must run transparent rulebooks, publish pre-trade and post-trade information subject to available waivers, and monitor for abuse. The practical difference from a regulated market lies in admission of instruments and listing status rather than in execution quality, and the same rules distinguish it from an organised trading facility, where the operator does exercise discretion.

MISMATCHStocks

A difference between the characteristics of an institution's assets and the liabilities funding them, most often in maturity, interest rate basis, or currency. A bank funding thirty-year mortgages with overnight deposits carries a maturity mismatch: its funding cost resets long before its asset yield does. Asset and liability managers measure the gap in each repricing bucket and can narrow it with swaps, term funding, or by changing what they lend.

Michael MilkenStocks

An American financier who, at Drexel Burnham Lambert during the 1970s and 1980s, built the market for high yield bonds by convincing institutions that a diversified pool of low-rated debt could compensate for its default risk. That funding channel financed leveraged buyouts and takeovers by companies unable to sell investment grade paper. He pleaded guilty to securities and reporting violations in 1990, served prison time, was barred from the securities industry, and received a presidential pardon in 2020.

Merchant BankStocks

A bank that advises on and invests its own capital in corporate transactions rather than taking retail deposits. Activities include underwriting and placing securities privately, arranging and participating in acquisition finance, and taking direct equity stakes in client companies. The historical British usage referred to houses that accepted bills of exchange to finance trade. Current United States usage usually means the principal investing arm of a securities firm.

MSCI Inc.Stocks

A United States index and analytics provider whose equity benchmarks, including the World, EAFE and Emerging Markets series, are widely used as mandates for international portfolios and as the basis for index funds. Revenue comes from licensing those indexes, from risk and portfolio analytics sold to institutions, and from sustainability and climate ratings. Because large pools of money track its benchmarks, its decisions on country classification and index inclusion can move flows into and out of individual markets.

Margin DebtStocks

The total amount investors have borrowed from brokers against securities held in margin accounts. The broker lends a portion of the purchase price, holds the securities as collateral, charges interest, and issues a margin call requiring more cash or securities if account equity falls below the maintenance level. Aggregate figures are reported monthly by FINRA and watched as a leverage gauge, since falling prices can force liquidation that pushes prices lower still.

Morningstar Risk RatingStocks

A rating assigned by Morningstar that ranks a fund against others in its category on downside variation in monthly returns, penalizing losses more heavily than it rewards equivalent gains. Funds are graded from low to high risk within their peer group, and the measure feeds the firm's overall star rating, which combines risk with return after adjusting for sales charges. Ratings look backward at realized performance and describe past variation rather than forecasting future outcomes.

Mumbai Interbank Offered Rate(MIBOR) Stocks

The benchmark rate at which banks in India offer unsecured funds to one another in the interbank market, published for overnight and short tenors. The overnight rate is calculated from actual call money market transactions rather than from submitted quotes, a reform intended to make it harder to influence. It is used to price floating rate loans, to settle rupee interest rate swaps, and as a reference in corporate debt issued in India.

Marketable Security(Marketable Securities) StocksCrypto

Marketable securities are liquid financial instruments a company holds that can be sold or converted to cash quickly at a predictable price, typically within a year. They appear as current assets on the balance sheet and commonly include treasury bills, commercial paper, certificates of deposit, money market instruments and readily traded equities. Businesses hold them to earn a return on cash not needed immediately while preserving the ability to fund operations, and analysts include them alongside cash when calculating quick and current ratios.

Monoline InsurerStocks

An insurer that writes only one line of business, in market usage the financial guarantee companies that insured timely payment of principal and interest on municipal bonds and structured securities. The guarantee let issuers borrow at the insurer's higher rating, and the insurer earned a premium for lending it. The model depended on the guarantor keeping a top rating, so when losses on mortgage-linked exposures forced downgrades during the financial crisis, the value of the wrap and the business model collapsed together.

MORATORIUMStocks

A legally authorized suspension of payments or of enforcement action for a defined period. Governments impose one on external debt service during a crisis, courts grant one to a company entering insolvency proceedings so creditors cannot seize assets while a plan is negotiated, and regulators have imposed them on foreclosures or loan repayments during emergencies. It postpones obligations rather than cancelling them, though the treatment of interest during the pause varies with the terms set.

Mergers and acquisitionsStocks

Transactions that combine or transfer control of businesses. A merger blends two companies into one entity; an acquisition leaves the buyer in control of the target, structured either as a purchase of shares or a purchase of assets, and paid in cash, stock or a mix. The process runs from valuation and due diligence through negotiation of the purchase agreement and its warranties, to regulatory and antitrust clearance, financing, and integration once the deal closes.

market-value-weighted indexStocksCrypto

An index in which each constituent's influence is proportional to its market capitalization, so a company's weight equals its market value divided by the total market value of all members. The design means the level moves with the aggregate value of the shares covered and needs no rebalancing when prices change, only when membership or share counts do. It concentrates exposure in the largest members, which is why providers also publish equal-weighted and free-float-capped versions.

Money Market YieldStocks

A quoting convention that annualizes the return on a short-term instrument using the actual purchase price as the base and a 360-day year, also called the CD equivalent yield. It corrects the main distortion in the bank discount yield, which divides by face value instead of by the amount invested, and therefore produces a higher figure for the same instrument. It still differs from the bond equivalent yield, which uses a 365-day year, so conventions must be matched before comparing.

Morningstar Inc.Stocks

A United States investment research firm that rates and analyzes funds, stocks and other assets, best known for the star rating comparing a fund's risk-adjusted return against its category peers and for its analyst ratings, which are forward-looking assessments of process, people and parent. It also sells portfolio analytics, data feeds and indexes, operates a managed portfolio business, and owns a credit rating agency. Its category definitions and style box are widely used as classification standards.

Mutual Insurance CompanyStocks

An insurer owned by its policyholders rather than by outside shareholders, so surplus is retained or returned to them through dividends and reduced premiums instead of being paid out as profit to investors. Policyholders elect the board, and the absence of a share price means the company cannot raise equity in the market and must build capital from retained earnings or surplus notes. Some have converted to stock form through demutualization, distributing shares or cash in exchange for those ownership rights.

market capitalization rateStocks

The market capitalization rate is the return the market as a whole requires from a company's equity, given its risk. It is the discount rate applied to expected dividends or free cash flow in a valuation model, and under the capital asset pricing model it equals the risk-free rate plus beta multiplied by the equity risk premium. A stock whose expected return exceeds this rate is treated by the model as trading below its intrinsic value.

market fundamentalsStocks

Market fundamentals are the underlying economic conditions that determine what an asset is worth, as distinct from sentiment and short-term flow. For a company they include revenue, margins, cash flow, balance sheet strength and competitive position. For a commodity they include production, inventories and consumption. For a currency they include growth, inflation and the balance of payments. Fundamental analysis estimates value from these inputs and compares it with the traded price.

market segmentation(segmented markets theory) Stocks

Market segmentation is the theory that a bond's yield is set by supply and demand within its own maturity range rather than by expectations about future short rates. Pension funds and insurers with long liabilities buy long bonds, banks and money funds buy short paper, and the groups do not move freely between them. Under this view the shape of the yield curve reflects the balance of issuance and demand in each maturity segment.

money market mutual fundsStocks

A money market mutual fund pools investor cash into short-dated, high-quality debt such as Treasury bills, repurchase agreements, certificates of deposit and commercial paper. Rules limit the average maturity and the credit quality of the portfolio so the share price stays stable and holdings can be sold quickly. The fund passes through the interest it earns after expenses. Shares are not bank deposits and carry no deposit insurance, so principal is not protected.

mortgage pass-throughStocks

A mortgage pass-through certificate gives its holder a pro rata share of the cash flows from a pool of mortgage loans. Servicers collect the borrowers' monthly payments, deduct servicing and guarantee fees, and pass the remaining interest and principal to certificate holders each month. Because borrowers may repay early, principal returns on an uncertain schedule, so investors face prepayment risk: refinancing accelerates when rates fall and slows sharply when they rise.

M2Stocks

A measure of the money supply that adds savings deposits, small time deposits and retail money market fund balances to the narrower aggregate of currency and checkable deposits. Central banks publish it to track how much purchasing power households and firms can reach quickly. Economists watch its growth rate as one input to inflation and activity analysis, though the relationship is unstable and the definition has been revised over time. Composition is set by the publishing central bank and differs between countries. In portfolio analysis the same two characters sometimes label the Modigliani risk-adjusted return measure, an unrelated quantity.

Marginal Cost of ProductionStocks

The added cost of producing one more unit of output, calculated as the change in total cost divided by the change in quantity. Only costs that vary with output enter it, so fixed costs already committed do not. It typically falls as fixed capacity is used more fully and then rises once capacity constraints bind, tracing a U-shaped curve. A profit-maximizing producer expands output while the price received exceeds it. In commodity analysis the marginal cost of the highest-cost producer still needed to meet demand is used as an anchor for long-run price.

Market Capitalization-to-GDP RatioStocksCrypto

A valuation gauge dividing the total market value of a country's listed equities by its gross domestic product, sometimes called the Buffett indicator. A high reading means the stock market is large relative to the economy that generates corporate revenue, a low reading the reverse. Comparisons over time are complicated by shifts in how much of the economy is listed at all: a wave of initial public offerings, profits earned through overseas subsidiaries, or foreign companies listing domestically each move the numerator without a matching change in domestic output.

Merton ModelStocksOptions

A structural credit model that treats a firm's equity as a call option on its assets, struck at the face value of its debt. Shareholders are repaid only if asset value at maturity exceeds what is owed, so equity has an option-like payoff and can be valued with option pricing mathematics. Running that logic backwards, observable equity value and equity volatility imply the unobservable asset value and asset volatility, from which the model derives a distance to default and a default probability. Its assumptions, a single debt maturity and continuously traded assets, are strong simplifications.

Mixed Economic SystemStocks

An economy that combines private ownership and market pricing with public provision and regulation. Most goods and services are allocated by supply and demand, while the state supplies public goods, funds or provides parts of health, education and infrastructure, redistributes through taxes and transfers, and sets rules covering competition, labor and the environment. Almost every modern economy is mixed; systems differ in where the boundary sits and how it is enforced. Debate centers on which activities markets handle well and where externalities, information gaps or natural monopolies justify intervention.

Modified Internal Rate of Return(MIRR) Stocks

A project return measure that addresses two weaknesses of the ordinary internal rate of return: the implicit assumption that interim inflows are reinvested at the project's own return, and the multiple answers that arise when cash flows change sign more than once. Negative flows are discounted to the present at a financing rate and positive flows compounded forward at a reinvestment rate, and the modified rate is the annual growth rate linking those two values over the project's life. It normally sits below a high internal rate of return.

Money ManagerOptionsStocks

A person or firm paid to make investment decisions over someone else's assets, whether inside a mutual fund, a separately managed account, a pension plan or a hedge fund. Pay is normally a percentage of assets under management, sometimes with a share of profits above a hurdle. In the United States, managers above a size threshold register as investment advisers, owe a fiduciary duty, must disclose strategy, fees and conflicts, and report large equity holdings quarterly. The same label appears in futures position reports as one category of market participant.

Money Purchase Pension PlanStocks

An employer retirement plan in which the company must contribute a fixed percentage of each eligible employee's pay every year, whether or not the business is profitable. It is a defined contribution arrangement, so the participant's benefit is whatever the account grows to rather than a promised income stream, and the investment outcome belongs to the participant. Contributions vest on a schedule and are generally not reachable before a qualifying event without tax consequences. Annual contribution and compensation caps come from the Internal Revenue Code and are adjusted periodically by the IRS.

MortgageStocks

A loan secured by real property, in which the borrower keeps possession while the lender holds a recorded lien allowing it to force a sale if payments stop. On a standard amortizing loan the payment is level, with the interest portion largest at the start and the principal portion growing until the balance reaches zero at the end of the term. The variables that drive cost are the term, whether the rate is fixed or adjustable, the loan-to-value ratio, and whether the lender requires mortgage insurance. Foreclosure procedure and any deficiency claim follow state law.

Mortgage BrokerStocks

An intermediary that takes a borrower's application and shops it to multiple lenders rather than lending its own money. The broker collects documentation, matches the file to programs the borrower qualifies for, and is paid a commission by the lender or the borrower, disclosed on the loan estimate. A retail loan officer, by contrast, offers only the products of the bank that employs them. Brokers are separately licensed in the United States, and compensation rules restrict paying them more for placing a borrower into a higher rate.

Mortgage Rate Lock Float DownOptionsStocks

A rate lock with an option attached: the borrower's interest rate is fixed between application and closing, but if market rates fall by a stated amount before closing, the rate can be reset lower once. Lenders charge for the feature, either as an up-front fee or a slightly higher locked rate, because they are selling optionality. The agreement defines the trigger size, the window in which it can be used, and whether the borrower or the lender initiates the reset. If rates never fall far enough, the borrower closes at the original locked rate.

Multi-Asset ClassStocks

An investment approach or product that holds more than one type of asset, typically combining equities, bonds and cash with allocations to property, commodities or private markets. The purpose is diversification: because the components do not move in step, blending them usually produces a smoother return path than any single sleeve. A multi-asset fund states a target mix or a range for each sleeve, rebalances back toward it as prices drift, and may shift weights tactically. Correlations between asset classes are not stable, and they tend to rise during severe market stress.

making a bookStocks

Making a book means quoting both a bid and an offer in an instrument and standing ready to deal on either side, taking the resulting position onto the dealer's own balance sheet. The dealer earns the spread between the two prices and manages the inventory that accumulates, hedging it or laying it off elsewhere. The phrase also names the record of positions a desk runs, and it is the origin of the market maker's obligation to show continuous two-way prices.

managed floatingStocksFutures

Managed floating is an exchange rate regime in which a currency's value is set mainly by market supply and demand, but the central bank intervenes to smooth movements or steer the rate without committing to a published target or band. Intervention takes the form of buying or selling foreign reserves and adjusting policy rates. It sits between a hard peg and a free float, and the International Monetary Fund classifies regimes partly by how frequently and visibly such intervention occurs.

mandateStocks

A mandate is the written authority a client gives an asset manager, setting out what the portfolio may hold, the benchmark it is measured against, permitted ranges for each asset class, limits on leverage, derivatives and single-issuer concentration, and any exclusions. It defines the boundary between a manager's discretion and a breach. In investment banking the same word describes a client's appointment of a bank to arrange a financing or advise on a transaction.

modelStocks

A model is a simplified representation of a financial system, built to produce a number that a decision depends on: a valuation, a risk estimate, a forecast or a hedge ratio. It states assumptions explicitly, takes inputs that must be observed or estimated, and produces outputs no more reliable than either. Model risk is the exposure created when the structure is wrong or the inputs are stale, which is why supervisors require documentation, independent validation and periodic back-testing.

multi-index noteStocks

A multi-index note is a structured debt security whose coupon or redemption amount depends on the performance of two or more reference indices rather than a single one. Common forms pay on the worst performer of a basket, on the spread between two indices, or only while every index stays inside a defined range. The issuer funds more cheaply because the investor has effectively sold optionality on the correlation between the references, which is the main source of the enhanced headline rate.

Market-Leveraged Stock Unit(MSU) OptionsStocks

A market-leveraged stock unit is an equity award whose share payout scales with the stock's price appreciation from the grant date. The number of shares delivered equals the target units multiplied by the ratio of the ending price to the grant price, so a stock that doubles pays roughly twice the target shares and a stock that falls pays proportionately fewer, usually subject to a floor and a cap. That leverage ties the award's value to shareholder returns more tightly than a plain restricted stock unit does.

margin creditStocks

Margin credit is money a broker lends to a client against securities held in the account, letting the client hold a position larger than the cash deposited. In the United States the Federal Reserve's Regulation T sets the initial proportion that may be borrowed, exchanges and brokers set the maintenance level that must be kept afterward, and brokers may demand more. Interest accrues daily on the balance, and a shortfall entitles the broker to sell holdings without further instruction.

MSCI All Country World Index(ACWI) Stocks

The MSCI All Country World Index is a broad equity benchmark covering large and mid capitalisation companies across developed and emerging markets. Constituents are weighted by free float adjusted market capitalisation, so only shares available to international investors count, and the index is reviewed and rebalanced on a published schedule. It is widely used as the reference for global equity mandates and as the underlying index for exchange traded funds seeking a single global stock exposure.

Macro EnvironmentStocks

The macro environment is the set of economy-wide conditions that affect all businesses and asset prices rather than a single company, including growth, inflation, interest rates, employment, exchange rates, fiscal and monetary policy, commodity prices and geopolitical developments. Analysts study it top down because these forces shape demand, input costs, discount rates and the appetite of investors for risk. It is contrasted with the microenvironment of a firm's own customers, suppliers and competitors, which management can influence directly.

Make Whole Call ProvisionStocks

A make whole call provision lets a bond issuer redeem the debt before maturity while compensating holders for the coupons they lose. The redemption price is the greater of par and the present value of all remaining scheduled payments, discounted at a comparable government yield plus a stated spread. Because that spread is usually narrow, the calculated price rises as rates fall, making early redemption expensive precisely when refinancing would otherwise be attractive. Issuers include the clause for flexibility rather than as a routine refinancing tool.

Margin Loan AvailabilityStocks

Margin loan availability is the amount of additional credit a brokerage will extend against the securities already in a margin account, given their current market value and the applicable margin requirements. It is calculated from excess equity above the maintenance requirement, adjusted by the loan value the firm assigns to each holding, and some positions such as low-priced or concentrated shares may carry no loan value at all. The figure moves with prices, so a market decline reduces availability and can trigger a margin call.

Market ApproachStocks

The market approach values a business, security or property by reference to prices actually paid for comparable assets, rather than by projecting its own cash flows or costing its components. In practice the analyst selects comparable companies or completed transactions, derives multiples such as enterprise value to EBITDA or price per square foot, adjusts for differences in size, growth, margin and risk, and applies the result to the subject. Its credibility depends entirely on whether genuinely comparable evidence exists and how recent it is.

Market LeaderStocks

A market leader is the firm holding the largest share of sales in a defined product market, typically accompanied by advantages in distribution, brand recognition, scale economics and pricing influence. Analysts measure the position by revenue or unit share within a clearly bounded market and watch whether the share is stable, gaining or eroding, since the trend often matters more than the level. Leadership does not by itself indicate profitability or investment merit, because share can be bought with pricing that destroys margin.

Market PortfolioStocksCrypto

The market portfolio is the theoretical holding of every risky asset in the economy, each weighted by its share of total market value. It is central to the capital asset pricing model, where every investor holds a combination of this portfolio and a risk-free asset, and where an individual asset's expected return depends only on how it moves with this portfolio, measured by beta. Because it should include unlisted businesses, property and human capital, it cannot be observed directly, so broad equity indices are used as imperfect proxies.

Market priceStocks

The market price is the amount at which an asset most recently changed hands between a willing buyer and seller in an open market, and it is the reference point for valuing holdings and calculating gains. In a continuously quoted market it sits between the bid a buyer offers and the ask a seller demands, and the gap between them is the spread that a trade must cross. It reflects the balance of supply and demand at that instant and may differ from an analyst's estimate of intrinsic value.

Master of Business Administration(MBA) Stocks

A Master of Business Administration is a postgraduate management degree covering accounting, finance, marketing, operations, strategy and organisational behaviour, usually taken after several years of work experience. Programmes are offered full time, part time and in executive formats, and many are accredited by bodies such as AACSB or EQUIS. In finance it is a common credential for investment banking, private equity and corporate finance roles, though it is a general management qualification rather than a licence to give investment advice.

Matching OrdersStocksCrypto

Matching orders is the process by which an exchange or trading venue pairs a buy order with a sell order that can transact against it, producing an execution. Most venues apply price-time priority: the best-priced order trades first, and among equally priced orders the one entered earliest takes precedence. The same phrase carries a separate and prohibited meaning in market abuse rules, where two parties enter offsetting orders of similar size and price to create an appearance of trading activity.

Mental AccountingStocksCrypto

Mental accounting is the behavioural finance observation that people sort money into separate psychological categories and treat each differently, even though currency is fungible. A household may hold low-yield savings labelled for a holiday while carrying expensive card debt, or treat a bonus or a windfall as available for spending in a way regular salary is not. In investing it shows up as reluctance to sell a losing holding because the loss is booked in a separate mental ledger from realized gains elsewhere in the portfolio.

MerchandisingStocks

Merchandising is the set of decisions a retailer makes about which goods to carry, in what quantity, at what price, and how to present them so they sell. It covers assortment planning, buying and allocation, shelf and display layout, promotional timing and markdown management. Financially it drives gross margin and inventory turnover, since carrying too much of the wrong stock ties up working capital and forces discounting, while carrying too little produces lost sales that never appear in the reported numbers.

Modified Adjusted Gross Income(MAGI) Stocks

Modified adjusted gross income is a United States tax figure that starts from adjusted gross income and adds back specified deductions and excluded income, with the exact add-backs differing by the provision being tested. It is used to determine eligibility for and phase-outs of items such as Roth contributions, deductible traditional contributions, education credits, health insurance subsidies and the net investment income tax. Because each provision defines it slightly differently, a single figure cannot be assumed to apply everywhere, and the thresholds are adjusted periodically.

Modigliani-Miller TheoremOptionsStocks

The Modigliani-Miller theorem states that in a market without taxes, bankruptcy costs, transaction costs or information asymmetry, how a firm is financed does not change its total value. Because investors can borrow on their own account to replicate any capital structure, the mix of debt and equity merely divides the same cash flows differently, and the cost of equity rises exactly enough to offset cheaper debt. Its value lies in identifying which real-world frictions, notably the tax deductibility of interest and distress costs, actually make capital structure matter.

Monoline bond insurersStocks

Monoline bond insurers are companies whose sole line of business is guaranteeing the timely payment of principal and interest on debt securities, so a defaulting issuer's obligations are met by the insurer instead. Municipal issuers historically bought the wrap to borrow at the insurer's higher rating rather than their own. Several such insurers extended their guarantees to structured mortgage products before the 2008 crisis, and the resulting claims forced downgrades and run-offs that removed much of the sector's value to issuers.

Mortgage BondStocks

A mortgage bond is a debt security secured by a specific claim over real property or other fixed assets, so holders can look to those assets for repayment if the issuer defaults. The term covers corporate first mortgage bonds, common in regulated utilities, and is also used loosely for bonds backed by pools of residential loans. Because the collateral reduces expected loss, mortgage bonds normally carry lower yields than the same issuer's unsecured debt, and the indenture sets rules on releasing or substituting the pledged property.

Mortgage InsuranceStocks

Mortgage insurance protects the lender, not the borrower, against loss if a mortgage defaults and the sale of the property does not cover the balance. It is usually required when the loan is large relative to the property's value, and the premium is paid by the borrower either monthly, as an upfront charge, or built into a higher rate. Private insurers write it for conventional loans and government agencies provide it for their own programmes. Cancellation rules depend on the programme and on the equity accumulated.

Mortgage OriginatorStocks

A mortgage originator is the institution or individual that takes a borrower's application, underwrites it and funds the loan at closing. Retail lenders originate directly, while mortgage brokers arrange loans funded by others, and correspondent lenders close in their own name and then sell the loan on. Most originators do not hold what they create: loans are sold into the secondary market or securitized, and the originator often retains the servicing right to collect payments for a fee. Registration and licensing requirements apply in most jurisdictions.

Mortgage RateStocks

The mortgage rate is the interest rate charged on a loan secured by real property, quoted as an annual percentage and applied to the outstanding balance. Fixed-rate loans hold it constant for the term, while adjustable loans reset it periodically to a named benchmark index plus a contractual margin, subject to caps. Pricing reflects prevailing yields on comparable government and mortgage-backed securities plus adjustments for the borrower's credit profile, loan size, loan-to-value ratio and product features, so quoted rates differ between applicants at the same moment.

Mortgage debtStocks

Mortgage debt is borrowing secured by a legal charge over real property, where the lender can take possession and sell the asset through foreclosure if the borrower fails to pay. It is normally repaid through scheduled instalments that cover interest and progressively retire principal over a long amortization period, though interest-only and balloon structures exist. Because the collateral reduces the lender's expected loss, it usually carries a lower rate than unsecured credit, and aggregate household mortgage debt is a closely watched measure of financial system leverage.

Multilateral Development Bank(MDB) Stocks

A multilateral development bank is an international financial institution owned by member governments that lends and grants funds for development projects in poorer member countries. It raises most of its money by issuing bonds against callable capital pledged by shareholders, which supports a high credit rating and lets it on-lend at rates below what borrowing countries could obtain alone. Examples include the World Bank group and the regional development banks, and lending is typically tied to project appraisal and policy conditions.

Milton FriedmanStocksCrypto

Milton Friedman was an American economist whose work reshaped how policymakers think about money, inflation and the limits of demand management. He argued that sustained inflation is fundamentally a monetary phenomenon, that consumption depends on expected lifetime resources rather than current income under his permanent income hypothesis, and that holding unemployment below its natural rate produces accelerating inflation rather than a stable trade-off. He favoured rules-based monetary growth over discretionary policy and floating exchange rates over fixed ones. He received the Nobel Memorial Prize in Economic Sciences in 1976, and his monetarist framework strongly influenced central banking from the late 1970s.

Market Risk AmendmentStocksCrypto

The Market Risk Amendment is the 1996 revision to the original Basel Accord that extended bank capital requirements beyond credit risk to cover losses on trading positions from moves in interest rates, equity prices, exchange rates and commodity prices. It offered a standardised calculation and, for the first time, allowed supervisors to approve a bank's own internal value-at-risk model for setting the capital charge, subject to qualitative standards and backtesting. That decision brought internal risk models into regulation, and the weaknesses exposed during the crisis of 2007 to 2009 led to successive revisions of the trading book framework.

master fundStocks

A master fund is the vehicle that holds the actual portfolio in a master-feeder structure, while separate feeder funds hold nothing but an interest in it and collect the capital of different investor groups. The point is to run one set of trades and one set of books for investors who need different wrappers, typically an onshore feeder for domestic taxable investors and an offshore feeder for foreign and tax-exempt ones. Costs are shared pro rata, so scale benefits everyone, but all feeders take identical exposure, and a redemption wave in one forces selling that affects the others.

master noteStocks

A master note is a short-term borrowing arrangement, usually a form of commercial paper, in which a single institutional lender and the issuer agree a maximum amount and the outstanding balance is adjusted daily as the lender's available cash changes. Bank trust departments have used them to invest fiduciary cash balances that fluctuate from day to day. Interest accrues on the actual daily balance at an agreed rate, and the paper is not distributed to other investors, so no secondary market exists. The arrangement suits both sides when cash needs and cash surpluses are variable but continuing.

master trustStocks

A master trust is a securitisation structure in which one trust holds a large revolving pool of receivables and issues multiple series of securities against it over time, rather than creating a new pool and a new trust for each deal. Credit card securitisation is the classic use, because balances turn over continuously and new receivables replace repaid ones inside the same pool. Each series takes a defined share of collections and has its own credit enhancement, so investors in different series rank against the same assets. Early amortisation triggers protect them if collections or excess spread deteriorate.

maturity bucketStocks

A maturity bucket is a time band into which assets, liabilities and off-balance-sheet items are grouped by when they mature or reprice, so exposures can be compared band by band. A bank might use overnight, up to one month, one to three months and so on. Subtracting liabilities from assets in each band gives the gap, which shows where a change in interest rates or a funding withdrawal would bite. The technique is the basis of gap analysis and liquidity reporting, and its accuracy depends on judgement about items with no contractual maturity, such as demand deposits.

medium-term debtStocks

Medium-term debt is borrowing with an original maturity in the middle of the range, conventionally taken as roughly one to five years, though the boundaries differ by market and by user. It sits between short-term money market instruments and long-dated bonds. Issuers use it to match funding to assets of similar life and to avoid concentrating refinancing dates, and many run medium-term note programmes that allow issuance in small amounts and varied structures under standing documentation. For investors the maturity carries less interest rate sensitivity than long bonds while paying more than money market instruments.

microcreditStocks

Microcredit is the provision of very small loans to borrowers who lack the collateral, credit history or documentation conventional lenders require, usually to fund self-employment or a small trading business. Lenders substitute other mechanisms for collateral: group lending with joint liability, frequent small repayments beginning soon after disbursement, and the promise of a larger loan on successful repayment. Administrative cost per loan is high relative to the amount lent, so interest rates are typically well above bank rates. Evaluations find effects on business activity are real but modest, and rapid growth in some markets produced borrower over-indebtedness.

mid-marketStocksCrypto

The mid-market price is the midpoint between the best bid and the best offer, calculated by adding the two and dividing by two. It represents neither a price at which someone can buy nor one at which someone can sell, since a real transaction crosses the spread, but it is widely used as a single reference for valuation, for marking portfolios and for calculating index levels, because it strips the bid-offer component out of period-to-period comparisons. In corporate finance the same phrase means something unrelated: the segment of companies sitting between small business and large capitalisation.

minus tickStocksCrypto

A minus tick is a trade executed at a price below the price of the immediately preceding trade in the same security. It is the opposite of a plus tick and, with the zero-plus tick, it formed the vocabulary of the old United States uptick rule, which for decades permitted a short sale only on a plus or zero-plus tick so short selling could not drive a price down in a continuous chain. That rule was removed in 2007 and replaced in 2010 by a mechanism that restricts short selling only after a security has already fallen by a set percentage in a day.

momentum indicatorStocks

A momentum indicator is a technical calculation measuring the speed of a price change rather than its direction or level, typically by comparing the current price with the price a set number of periods earlier, or by summing recent gains against recent losses. The rate of change, the relative strength index and the moving average convergence divergence line are common examples. Traders watch for readings at extremes, for the indicator turning before price does, and for divergence, where price makes a new high but the indicator does not. Such signals describe past behaviour and give no assurance about what follows.

Monetary Policy CommitteeStocks

The Monetary Policy Committee is the body at the Bank of England responsible for setting the policy interest rate and other monetary measures in pursuit of the inflation target the government specifies. It has both internal Bank members and external members appointed for their expertise, meets on a published schedule, decides by majority vote with each member individually accountable, and publishes minutes recording how members voted and why. Several other central banks use committees of the same name. The design combines operational independence in choosing instruments with a target set by elected government.

money at callOptionsStocks

Money at call is very short-term lending between financial institutions that the lender can demand back the same day, without notice. It is the most liquid asset a bank holds after cash itself, appearing near the top of the balance sheet as a reserve of immediately available funds. Because the loan can be recalled at any moment, it pays a low rate. Discount houses and money market dealers were traditionally the borrowers, funding holdings of bills with money that could be withdrawn instantly, which is precisely why they needed a lender of last resort standing behind them.

money at short noticeOptionsStocks

Money at short notice is interbank or money market lending repayable after a stated brief period, commonly up to seven or fourteen days, rather than instantly on demand. It pays slightly more than money at call because the lender gives up the right to immediate recall, and the borrower gains a short but certain period of funding. Banks hold it as part of the liquid asset layer sitting just behind cash and call money in the liquidity ladder. The distinction matters in liquidity reporting, where assets are ranked by how quickly they can be turned into cash.

moral hazardStocksCrypto

Moral hazard is the change in behaviour that occurs once someone is protected from the consequences of a risk, because the party taking the risk no longer bears its full cost. An insured driver may park less carefully, a bank whose creditors expect a rescue may fund riskier assets, and a manager paid a share of gains but not losses has an incentive toward volatility. It arises from asymmetric information, since the protected party's actions cannot be fully observed or priced. Deductibles, co-insurance, monitoring, deferred compensation and resolution regimes that impose losses on creditors all attempt to restore some exposure.

murabahaStocks

Murabaha is an Islamic finance sale in which a financier buys an asset the customer wants and resells it to the customer at a disclosed cost plus an agreed mark-up, payable in instalments over time. Because the return arises from a trade in a real asset rather than from lending money at interest, the structure is used in place of conventional credit by institutions following sharia principles. The requirements are that the financier genuinely takes ownership and its associated risk for a period, that cost and mark-up are disclosed, and that the mark-up is fixed at the outset rather than increasing with delay.

marginalStocks

Marginal describes the effect of one additional unit of something, and it is the central concept in economic decision-making. Marginal cost is the extra cost of producing one more unit, marginal revenue the extra revenue from selling one more, marginal utility the extra satisfaction from consuming one more, and a marginal tax rate the tax charged on the next unit of income. The rule that follows is that an activity is worth expanding while its marginal benefit exceeds its marginal cost. Marginal figures differ from average figures, and confusing the two is a common error in pricing and tax discussions.

market powerStocks

Market power is the ability of a firm to raise price above the level competition would produce without losing enough sales to make the increase unprofitable. It comes from concentration, from barriers to entry such as capital requirements, network effects, patents or regulation, and from product differentiation and switching costs. Economists measure it by the mark-up of price over marginal cost, summarised in the Lerner index, and use concentration measures such as the Herfindahl-Hirschman index as an indirect indicator. Competition authorities assess it when reviewing mergers and conduct, since holding it is lawful while abusing it generally is not.

Marshall PlanStocks

The Marshall Plan was the United States programme of grants and assistance to Western European countries after the Second World War, running from 1948 for four years and administered through an organisation that required recipients to coordinate their recovery plans with each other. Aid financed imports of food, fuel, raw materials and equipment the recipients could not otherwise pay for, easing the shortage of dollars that was constraining reconstruction. Alongside the material help, the requirement to cooperate over allocation contributed to the institutions of later European economic integration. It remains the standard reference point in debates about large-scale reconstruction assistance.

measureOptionsStocks

In the mathematics used for derivatives pricing, a measure assigns probabilities to the possible paths an asset can take, and the same set of paths can be described under different measures. The real-world measure reflects actual expected returns, while the risk-neutral measure adjusts probabilities so every asset is expected to earn the riskless rate, which is what allows a derivative to be valued as the discounted expected value of its payoff. Changing between them shifts the drift of the process but not its volatility, a result formalised by Girsanov's theorem. Choosing a convenient measure simplifies many pricing problems.

Marginal Lending FacilityStocks

A standing facility of the European Central Bank through which eligible banks can borrow overnight funds against qualifying collateral at their own initiative. Because any bank with collateral can use it, its rate caps the overnight market rate, since no one lends in the market above the price at which the central bank will lend. It forms the ceiling of the rate corridor whose floor is the deposit facility, with the main refinancing rate in between.

Marginal propensity to saveStocks

The share of an additional unit of disposable income that a household saves rather than spends, calculated as the change in saving divided by the change in income that produced it. It is the complement of the marginal propensity to consume, and the two sum to one because additional income is either spent or saved. It matters for macroeconomic policy because the size of the spending multiplier depends on it: the more of each extra dollar that is saved, the less of a fiscal injection circulates onward as someone else's income.

Marginal tax rateStocks

The rate of tax applied to the next unit of income earned, as distinct from the average rate paid across all income. Under a progressive schedule, income is taxed in bands, so only the portion falling inside the top band an individual reaches is taxed at that band's rate, which is why moving into a higher band never reduces total after-tax income. It is the relevant rate for decisions at the margin, such as whether to make a deductible contribution or realise an additional gain. Bands are set annually by the tax authority.

Market FailureCrypto

A situation in which voluntary exchange produces an allocation of resources that is inefficient, so the quantity produced differs from what would maximise total welfare. Standard causes are external costs or benefits that the price does not capture, such as pollution, public goods that nobody can be excluded from and so nobody will fund, market power that lets a seller restrict output, and information asymmetry between the two sides. Identifying one is an argument for examining intervention, not proof that intervention will improve the outcome.

Market ManipulationStocks

Conduct intended to create a false or misleading impression of a security's price, volume, or liquidity in order to profit from the distortion. Recognised forms include wash trades and matched orders that fabricate activity, spoofing with orders never intended to execute, marking the close, cornering supply, and spreading false information about an issuer. Securities laws prohibit it and surveillance systems flag the order-book patterns that identify it, with penalties including disgorgement, fines, trading bans, and criminal prosecution.

Market basketStocks

A fixed set of goods and services, weighted by how much a typical household actually buys, whose total cost is tracked over time to measure price change. Holding the contents and weights fixed between revisions is what isolates price movement from changes in what people purchase. Consumer price indices are built this way, and the basket is periodically rebased as spending patterns shift. The weighting is why an index can rise modestly while an item a particular household buys heavily rises far more.

Market economyStocksCrypto

An economic system in which the questions of what to produce, how, and for whom are settled chiefly by prices arising from voluntary exchange rather than by administrative direction. Prices transmit information about scarcity and preference, and profit and loss reallocate resources without any central authority collecting the underlying data. Every functioning example depends on enforceable property rights and contracts, and all combine market allocation with public provision, regulation, and redistribution to varying degrees.

Medallion Signature GuaranteeStocks

A stamp applied by a participating bank, broker, or credit union certifying that a signature on a securities transfer is genuine and that the signer has the legal capacity and authority to make the transfer. Transfer agents require it before reregistering or transferring securities because the guaranteeing institution accepts financial liability if the signature turns out to be forged. It is stronger than a notarisation, which only attests that a person appeared and signed, and institutions issue it only to their own customers, within surety-backed dollar limits.

Medical Cost RatioStocks

The share of premium revenue a health insurer spends on medical claims and quality improvement, calculated as incurred claims divided by premiums earned, and also called the medical loss ratio. A lower ratio means more premium retained for administration and profit. In the United States the Affordable Care Act sets minimum ratios by market segment and requires insurers falling below them to rebate the difference to policyholders, which turned an internal profitability metric into a regulatory test with a defined calculation.

Medium of ExchangeFuturesStocks

The function of money that lets goods and services be traded through an intermediate item accepted by everyone, removing the need for a double coincidence of wants under barter. Anything serving the role must be widely accepted, divisible, portable, durable, and hard to counterfeit. It is one of three classical functions of money, alongside unit of account, which provides a common measure of value, and store of value, which allows purchasing power to be carried forward. An asset can fulfil one function well and another poorly.

Medium-term notesStocks

Debt securities issued continuously off a shelf programme rather than in one large underwritten deal, letting an issuer tap the market for modest amounts whenever conditions or investor demand suit. Maturities commonly run from about one year to a decade, though the label no longer restricts them tightly. Terms including coupon structure, currency, and maturity can be tailored to a single buyer through a reverse enquiry, which is why the programme documentation is drawn broadly and each drawdown is priced separately.

Melt UpStocks

A steep rise in asset prices driven mainly by investors rushing in to avoid missing further gains rather than by improving fundamentals. Rising prices attract flows, which raise prices again, and shorts covering and systematic strategies chasing momentum reinforce the move. Because the advance rests on flows rather than earnings, valuations stretch and the market becomes vulnerable to any interruption of new money. The term is descriptive and can only be confirmed after the fact, which is what makes acting on it unreliable.

MicroeconomicsStocks

The branch of economics analysing decisions made by individual households, firms, and industries, and how their interaction sets prices and allocates resources in particular markets. Its core subjects are consumer choice under a budget constraint, production and cost, market structures from competition through monopoly, factor markets, and the conditions under which an allocation is efficient. It supplies the foundations that macroeconomics aggregates, and its central discipline is marginal analysis: comparing the additional benefit of one more unit against its additional cost.

MicrofinanceStocks

The provision of small loans, savings, insurance, and payment services to low-income households and tiny businesses that commercial banks find uneconomic to serve. Lenders substitute for collateral and formal credit files with group liability, frequent small repayments, and local loan officers who know borrowers personally. Operating costs per dollar lent are high, which is why interest rates are high even where lenders are non-profit. Evidence on its effect finds meaningful gains in business activity and household flexibility, with weaker support for the broader poverty reduction claims once made for it.

Mill LevyStocks

A property tax rate expressed in mills, where one mill is one thousandth, so a levy of one mill charges one currency unit of tax for every thousand units of assessed value. Local taxing bodies such as school districts, counties, and municipalities each set their own levy, and a property's total rate is the sum of the overlapping jurisdictions covering it. The tax owed is the combined levy applied to assessed value after exemptions, so both the levy and the assessment method affect the final bill.

Misery IndexStocksCrypto

A simple economic indicator adding the unemployment rate to the inflation rate, on the reasoning that both impose costs across a population and that their sum approximates felt economic hardship better than either alone. It was devised by economist Arthur Okun and has been extended in later versions that add borrowing costs or subtract growth. Its weakness is that it weights the two components equally and ignores who bears each, so distributional effects and the duration of unemployment are invisible in the total.

Mobile BankingStocks

The delivery of banking services through an application or browser on a phone, covering balance enquiries, transfers, bill payments, card controls, deposits by photographing a cheque, and increasingly account opening and lending. Security rests on device binding, biometric or passcode authentication, and step-up verification for higher-risk actions, since the phone becomes both the access channel and often the second factor. Its spread has reduced branch transaction volumes and, in markets with limited branch coverage, has been the primary route to first-time account access.

Monetary BaseStocks

The narrowest measure of money, consisting of currency in circulation plus the reserve balances commercial banks hold at the central bank. It is the only monetary quantity the central bank controls directly, since it expands when the bank buys assets or lends and contracts when it sells or the loans mature. It is not the money supply the public holds: broader aggregates also include deposits created by bank lending, and the ratio between them varies with bank behaviour, which is why base growth does not translate mechanically into broader money growth.

MonetizeOptionsStocks

To convert an asset, activity, or audience into cash flow. A company monetises a user base by adding advertising, subscriptions, or transaction fees; a homeowner monetises equity by borrowing against or selling the property; a lender monetises a loan book by securitising it. In macroeconomics the word has a narrower and more contentious meaning: debt monetisation, where a central bank finances government deficits by creating money to buy the debt, which most legal frameworks restrict because of its inflationary history.

Money neutralityStocksCrypto

The proposition that a change in the quantity of money alters the price level and other nominal values proportionally while leaving real variables such as output, employment, and relative prices unchanged. Most economists treat it as a reasonable description of the long run, once wages and prices have adjusted, but not of the short run, where contracts and slow-moving prices let monetary changes affect real activity. The distinction is the basis for the view that monetary policy can influence the cycle without altering an economy's long-run growth path.

MonopsonyStocksCrypto

A market with one dominant buyer facing many sellers, the mirror image of a monopoly. Because the buyer's own purchases move the price, it maximises profit by purchasing less than a competitive buyer would, which pushes the price it pays below the value of the last unit bought. The clearest applications are labour markets where few employers hire a given skill in a given place, producing wages below the worker's marginal contribution and providing a rationale for minimum wages and for competition scrutiny of employer conduct.

Month-To-Month TenancyStocks

A rental arrangement that renews automatically each month until either party gives notice, with no fixed end date. It can be created deliberately or arise when a fixed-term lease expires and the landlord keeps accepting rent. Notice periods and permitted rent increases are set by local law, and both are typically short, which is the trade-off: the tenant gains flexibility to leave and the landlord gains the ability to raise rent or regain the property, while neither has the security a fixed term provides.

MothballingOptionsStocks

Placing a plant, mine, vessel, or facility into a preserved but idle state rather than closing it permanently, so it can be restarted when economics improve. The operator continues to pay for maintenance, security, corrosion protection, insurance, and permit compliance, which is why it is chosen only when expected restart value exceeds those carrying costs plus the cost of restarting. It is common in commodity industries during price troughs, and restart is rarely instant because certifications lapse and trained crews disperse.

Multilateral Investment Guarantee AgencyStocksCrypto

A member of the World Bank Group that provides political risk insurance and credit enhancement to investors and lenders financing projects in developing economies. Its cover addresses risks commercial insurers avoid: expropriation, currency inconvertibility and transfer restriction, war and civil disturbance, and breach of contract by a government counterparty. By absorbing those exposures it aims to make projects financeable that would otherwise be rejected, and its association with the World Bank Group also gives it standing to intervene diplomatically before a dispute becomes a claim.

Multiple Listing ServiceStocks

A cooperative database through which real estate brokers share their listings with each other and agree in advance to split the commission with whichever member finds the buyer. It is operated locally by broker associations under membership rules rather than as a single national system. Its effect is broader exposure for a seller and one searchable inventory for a buyer's agent. Public portals display a filtered subset of the data under syndication agreements, so what a consumer sees is not identical to the member view.

MultiplierStocks

A factor describing how much a final total changes for a given initial change, used across economics for effects that circulate rather than stopping at the first round. In fiscal analysis, spending becomes someone's income, part of which is spent again, so the simple multiplier is one divided by the fraction of extra income not spent. In banking, the deposit multiplier relates the monetary base to broader deposits when banks lend out most of what they receive. Real-world values are smaller than these formulas suggest, because leakages to saving, taxes, and imports drain each round.

Macaroni DefenseStocks

A takeover defence in which a company issues bonds carrying a promise to redeem at a large premium if control changes hands. The redemption obligation expands on a change of control, in the way pasta swells when cooked, so a bidder must fund a much larger payout to bondholders on top of the price paid for the equity. It raises the cost of an unsolicited bid, but it leaves the company carrying that contingent obligation, which weighs on its own credit standing.

Majority ControlStocks

Control of a company through ownership of more than half the votes, letting the holder pass ordinary resolutions and appoint or remove directors without support from other shareholders. It is not unlimited power: special resolutions typically need a higher threshold, minority shareholders have statutory protection against unfairly prejudicial conduct, and directors owe duties to the company rather than to the controller. In listed companies a controlling stake usually triggers disclosure and, in many jurisdictions, an obligation to offer to buy out the minority.

Management ControlStocks

Effective control of a company by its executives despite their holding little of the equity, which arises when ownership is dispersed so widely that no shareholder has both the incentive and the means to organise opposition. Management sets the agenda, controls the flow of information and usually the proxy process, so board nominations pass unopposed. This is the classic separation of ownership from control, and the governance response is independent directors, pay votes and disclosure that let dispersed owners monitor at lower cost.

Mandatory BidStocksCrypto

A takeover rule requiring anyone whose holding crosses a stated percentage of a company's votes, or who buys further shares while already above it, to offer to acquire all the remaining shares. The offer must be in cash or include a cash alternative, at no less than the highest price the bidder paid over a defined look-back period. The purpose is equal treatment, so minority holders get the same exit terms as those who sold control. Thresholds are set by each jurisdiction's takeover code.

Maple BondStocks

A bond denominated in Canadian dollars and issued in Canada by a borrower based outside Canada. It gives domestic investors foreign credit exposure without currency risk, and gives the issuer access to Canadian savings, usually with the proceeds swapped back into its home currency. Issuance volume is sensitive to the cross-currency basis, which determines whether the swapped cost beats issuing at home. It belongs to the same family as yankee, samurai and kangaroo issues in other domestic markets.

Market FlexStocks

A clause in a leveraged loan commitment letter letting the arranging banks change the pricing, structure or terms of the facility if that proves necessary to complete syndication. Flex can raise the margin or original issue discount, shift amounts between tranches, or tighten covenants, within limits negotiated in advance. It transfers syndication risk back to the borrower, and how much of it an arranger can extract is a reliable read on how strong or weak the loan market is at that moment.

Market ModelStocks

A single-index regression relating an asset's return to the return on a market index: the asset return equals an intercept plus a slope times the market return plus a residual. The slope is beta, measuring sensitivity to market movements; the intercept is average return unexplained by the market; the residual captures asset-specific movement. Squaring the correlation gives the share of variance the index explains, and the residual variance is the part that diversification across many holdings can remove.

Member BankStocksCrypto

A United States commercial bank that belongs to the Federal Reserve System, holds stock in its district Reserve Bank and receives a statutory dividend on that stock. National banks must be members; state-chartered banks may apply. Membership brings supervision by the Federal Reserve for state member banks, along with access to the discount window and to central bank payment services, while reserve requirements apply to depository institutions generally rather than only to members.

MidgetStocks

Market nickname for a Ginnie Mae mortgage pass-through pool backed by fifteen-year fixed-rate loans rather than thirty-year loans. The shorter amortisation returns principal faster, which shortens duration and reduces sensitivity to prepayment, so these pools trade as a distinct sector with their own price relationships. Because the underlying loans carry a government guarantee, holders are exposed to prepayment and interest rate risk rather than to credit loss on the borrowers.

Minimum Funding RequirementStocks

A statutory test introduced in the United Kingdom that compared a defined benefit scheme's assets against its liabilities on prescribed assumptions and required the employer to make up any shortfall over a set period. Because the assumptions were standardised rather than scheme-specific, the test could show a scheme as adequately funded when it could not have secured members' benefits with an insurer. It was replaced by a scheme-specific funding regime in which trustees and employer agree assumptions subject to the pensions regulator.

Minority ControlStocks

Effective control of a company by a shareholder holding less than half the votes, which works when the remaining shares are dispersed and turnout at meetings is low enough that the block decides outcomes. Pyramid structures, shareholder agreements and enhanced-voting share classes extend the reach of a small economic stake. Because the controller's cash flow rights are smaller than its voting rights, governance analysis treats that gap as a risk that decisions may favour the controller over other owners.

Minority Shareholder RightsStocks

Protections available to shareholders who cannot outvote a controlling holder. Typical mechanisms include a statutory remedy for conduct unfairly prejudicial to their interests, the right to bring a derivative claim on the company's behalf, thresholds letting a percentage of holders requisition a meeting or block a special resolution, pre-emption rights on new share issues, and rules requiring related party transactions to be approved by independent shareholders. The specific rights and thresholds come from company law and listing rules in each jurisdiction.

MomoStocksCrypto

Trader shorthand for momentum trading, buying what is already rising and selling what is already falling on the expectation that the move continues. Signals are drawn from price change over a lookback window, relative strength against peers, volume expansion or a breakout from a range, and positions are exited on a trailing stop or when the signal reverses. The approach is exposed to sharp reversals, because crowded positions of this kind unwind quickly once the trend breaks.

Morning NotesOptionsStocks

Short research pieces a broker's analysts publish before the trading session, summarising overnight moves, company announcements, rating and estimate changes, and the day's scheduled economic data. They are distributed to institutional clients and often discussed on an internal morning call so sales and trading staff share one view of the day's catalysts. Distribution is governed by research rules on disclosing conflicts and on fair dissemination, and in some jurisdictions research must be paid for separately from execution.

Mortgagee In PossessionStocks

A lender that has taken physical possession of mortgaged property following default, in order to collect rents or to sell it and recover the debt. Possession brings duties: the lender must account strictly for income and expenditure, take reasonable care to obtain a proper price on sale, and it becomes responsible for maintaining and insuring the property. Any surplus after debt, interest and costs belongs to the borrower, and those duties are why lenders often appoint a receiver instead.

Most Favored NationStocksCrypto

A commitment to give one party terms no worse than those given to any other. In trade law it is the World Trade Organization principle that a tariff concession granted to one member must be extended to all members, subject to defined exceptions for customs unions and free trade areas. In commercial contracts, a clause of the same name entitles a counterparty to the benefit of better terms later granted to someone else, which is common in fund side letters and licensing agreements.

Multiple Option FacilityOptionsStocks

A syndicated bank facility under which a borrower may draw in several different ways under one commitment, for example as a straight advance, through a tender panel bidding for short-term paper, or as bankers acceptances, and often in more than one currency. A single commitment and one set of documents replace separate lines, and the borrower takes whichever route is cheapest at each drawdown. Commitment fees are charged on the facility whether or not it is actually used.

Mutual OrganizationStocks

An entity owned by its customers rather than by outside shareholders, so policyholders, depositors or borrowers hold the membership rights and any surplus is retained or returned to them through pricing and dividends. Without traded shares it cannot raise equity externally, which limits growth funding and removes takeover pressure, and members' governance rights are hard to exercise because each has one vote and little individually at stake. Converting to shareholder ownership is called demutualisation.

Marshall, AlfredStocks

British economist whose Principles of Economics set out the supply and demand apparatus still in use, arguing that price is determined jointly by both blades of the scissors rather than by cost or utility alone. He formalised price elasticity, consumer surplus, and the distinction between short-run and long-run adjustment as fixed factors become variable, and introduced quasi-rent for the return to a factor that is fixed in the short run. His partial equilibrium method underlies most applied market analysis.

Minimum wageStocks

A legally enforced floor on hourly pay below which an employer may not pay covered workers. Standard competitive analysis predicts that a floor set above the market-clearing wage reduces the quantity of labour demanded, while monopsony models predict employment can rise where employers have wage-setting power. Empirical estimates vary with the size of the increase and the local wage distribution. Rates and coverage are set by national or subnational legislation and reviewed on a stated cycle.

MobilityStocks

The ease with which a factor of production moves between uses, employers, industries or regions in response to differences in return. Labour mobility is limited by housing costs, occupational licensing, family ties and skill specificity; capital is generally more mobile, though physical plant is not. Low mobility means wage and price differences persist instead of being competed away, which is why regional unemployment can coexist with vacancies elsewhere and why a currency union depends on workers being able to move.

M0(base money) StocksFutures

The narrowest measure of money, covering physical currency in circulation plus the reserve balances commercial banks hold at the central bank. Because the central bank issues both components directly, this is the aggregate it controls, and expanding it through asset purchases is how quantitative easing operates. It grows into broader aggregates only if banks lend against reserves, so a rise in the base does not translate mechanically into a rise in the wider money supply.

Maastricht Treaty(Treaty on European Union) Stocks

The 1992 treaty that created the European Union and set the legal path to a single currency, establishing the European Central Bank and the timetable for monetary union. It defined the convergence criteria a member state must meet on inflation, long-term interest rates, exchange rate stability and public finances, with reference values for the budget deficit and the debt ratio relative to gross domestic product. Those fiscal reference values still anchor the Union's budget surveillance rules.

Management Company(ManCo) Stocks

The regulated entity appointed under contract to run a fund or investment vehicle, responsible for portfolio management, risk management, compliance, valuation oversight and reporting, and paid a fee that is usually a percentage of assets. The fund itself often has no employees, so the management company supplies the people and systems. Regulators authorise it, hold it to capital and conduct requirements and require functions delegated to third parties to remain under its supervision.

Marine InsuranceStocks

Cover for ships, cargo and the liabilities arising from carrying goods by sea, and the oldest branch of the modern insurance market. Hull policies insure the vessel, cargo policies insure the goods in transit, and protection and indemnity cover, usually written by mutual clubs of shipowners, handles third party liabilities such as crew injury, pollution and collision. The doctrine of utmost good faith and the practice of general average both originate in this market.

Marker Crude(benchmark crude) FuturesStocks

A widely traded crude oil grade whose price is used as the reference against which other grades are quoted, with each cargo priced at a differential to the marker that reflects its density and sulphur content and the cost of shipping it. Brent, West Texas Intermediate and the Dubai and Oman grades serve this role for different regions. A marker survives only while enough physical cargoes trade to make its assessed price hard to manipulate.

Matched BargainStocksCrypto

A trade arranged by pairing an identified buyer with an identified seller rather than by dealing against a market maker's capital, so no intermediary takes the position onto its own book. Small company shares often trade this way, on venues where a broker collects interest and executes only when both sides can be matched. Liquidity is therefore intermittent and the price is whatever the two parties agree, which can leave a holder unable to sell promptly.

MaterialityStocks

The threshold above which an omission or misstatement could reasonably be expected to influence the decisions users make on the basis of financial statements. It is judged by size relative to a benchmark such as revenue, profit or net assets, and also by nature, so a small amount involving related parties, fraud or a covenant breach can be material regardless of its magnitude. Auditors set a planning threshold from it, and it also governs which events an issuer must disclose.

METI(Ministry of Economy, Trade and Industry) StocksCrypto

Japan's government ministry responsible for industrial policy, trade, energy policy and technology, formed when the Ministry of International Trade and Industry was reorganised in 2001. It sets energy and resource strategy, administers export controls, publishes closely watched industrial production and machinery orders statistics, and oversees the agencies handling small business support and patents. Its guidance to industry has historically carried weight beyond its formal legal powers.

Migration(credit migration, rating migration) Stocks

The movement of a borrower or security from one credit rating category to another over a stated period. Rating agencies publish transition matrices showing the historical probability of moving from each grade to every other grade, including default, over one year or longer. Portfolio credit models use those probabilities to value downgrade risk as well as default risk, which matters because a downgrade widens spreads and can force sales by mandate-constrained holders.

Minimum SubscriptionStocksCrypto

The lowest amount of an offering that must be taken up before the issuer may proceed and keep the proceeds, stated in the prospectus so that investors know the project will not go ahead underfunded. If applications fall short, the offer is withdrawn and application money is returned. The same phrase is also used for the smallest investment a fund will accept from a single investor, which sets the effective entry point for that vehicle.

MonetarismStocksCrypto

The school of macroeconomic thought holding that the money supply is the dominant influence on nominal spending and that sustained inflation is caused by money growing faster than output. It builds on the quantity theory identity linking money and its velocity to prices and real output, and argues that discretionary demand management works with long and variable lags. The policy conclusion was a steady money growth rule, which central banks largely abandoned once the velocity of measured aggregates proved unstable.

Monetary InflationStocksCrypto

A rise in the general price level driven by expansion of the money supply relative to the volume of goods and services available, rather than by a supply shock or a shift in relative prices. The mechanism is that additional purchasing power meets an output level that cannot expand as quickly, so nominal prices adjust. The link is loose in the short run because the velocity of money varies and new money can flow into asset prices before consumer prices.

Money Center BankStocks

A large bank based in a major financial centre that funds itself principally in the wholesale markets, through interbank borrowing, certificates of deposit and commercial paper, rather than relying on a retail deposit branch network. Its business is weighted toward lending to corporations, governments and other banks, plus trading and international operations. Wholesale funding is cheaper when credit conditions are calm and disappears fastest when they are not, which concentrates liquidity risk.

Money LaunderingStocks

The process of disguising the criminal origin of funds so they can be used openly, conventionally described in three stages: placement of cash into the financial system, layering through complex transfers, shell entities and asset purchases to break the audit trail, and integration back into apparent legitimate ownership. Financial institutions are required to identify customers, monitor transactions and report suspicious activity, and both the underlying conduct and failures to control it carry penalties.

Money Market Preferred Stock(auction rate preferred) Stocks

Preferred shares whose dividend rate is reset at frequent intervals through a Dutch auction, giving holders a short effective duration on a long-dated instrument and giving corporate buyers a dividend that may qualify for the received dividend deduction. Liquidity depends entirely on the auctions clearing. When bidding failed across the United States auction rate market in 2008, holders were left with securities they could not sell at par, which is the structural risk in the design.

Monoline PolicyStocksCrypto

An insurance contract covering a single class of business, such as property alone or employers' liability alone, with its own limits, conditions and renewal date. Buying separate monoline policies lets each risk be placed with the insurer offering the best terms for that class, and keeps a claim in one line from eroding the limits available to another. The cost is more documentation, more renewal dates and the possibility of gaps where two policies meet.

Moral Suasion(jawboning) Stocks

Informal pressure a central bank or regulator applies to persuade financial institutions to act in a particular way, using speeches, private guidance and the implicit weight of its supervisory relationship rather than a binding rule. It has been used to discourage lending to particular sectors, to restrain dividend payments and to coordinate support for a failing firm. Its effectiveness rests on the regulator's other powers, which makes the distinction between persuasion and instruction blurred.

Multicurrency Note FacilityStocksFutures

A committed bank arrangement letting a borrower issue short-term notes in a choice of currencies over a multi-year period, with a syndicate standing ready to buy any notes investors do not take or to lend directly instead. The borrower gets the low cost of note issuance plus the certainty of a backstop, and pays a commitment fee for the standby. The currency option is useful for a group whose funding needs shift between markets.

Multifactor Option(rainbow option) OptionsStocks

An option whose payoff depends on more than one underlying variable, such as the best or worst performer of several assets, a basket, or the spread between two prices. Value depends critically on the correlations between the underlyings as well as their individual volatilities, so the seller is exposed to correlation risk that cannot be hedged with single-name options. Pricing generally requires simulation or a multi-dimensional numerical method.

Multilateral NettingStocksCrypto

An arrangement in which many participants settle through a central point that offsets everything owed among them, so each party makes or receives a single net payment instead of settling each bilateral obligation. Clearing houses and corporate treasury netting centres both use it. It cuts the number and value of payments sharply, reducing settlement risk and liquidity needs, but it concentrates exposure on the central entity, which is why clearing houses hold margin and default funds.

Multiline PolicyStocks

A single insurance contract covering several classes of business together, for example property, business interruption, general liability and crime, under one set of conditions and one renewal date. Combining lines can lower administration and premium and removes the risk that two separate policies fail to meet at the edges. The buyer needs to check whether limits apply separately to each section or are shared, since a shared aggregate can be exhausted by a claim in one line.

Multiple Barrier OptionOptionsStocks

A barrier option with more than one trigger level, such as a double knock-out that expires worthless if the underlying touches either an upper or a lower boundary, or a structure where one barrier activates the option and another cancels it. The extra boundaries make the option cheaper than a standard one because more paths end in no payoff. Hedging is difficult near a barrier, where the delta can change abruptly as the trigger is approached.

Multirisk ProductStocksCrypto

An alternative risk transfer contract bundling several distinct exposures, often mixing insurable risks such as property damage with financial risks such as commodity price or currency movements, under one aggregate limit and a common trigger. Combining them costs less than buying separate cover because the risks are imperfectly correlated, so the limit is unlikely to be needed for all of them at once. The buyer accepts that one large loss can consume the capacity meant for the others.

macroprudential regulationStocks

Rules aimed at the stability of the financial system as a whole rather than at the soundness of individual firms. Instruments include countercyclical capital buffers that build in booms and release in downturns, caps on loan-to-value and debt-to-income ratios, minimum margin and haircut standards, and capital surcharges on systemically important institutions. The organizing idea is that behaviour which is prudent for one firm, such as selling assets to cut risk, can destabilize the system when every firm does it at the same moment.

macroprudential supervisionStocks

Ongoing oversight that monitors the financial system for risks building across institutions and markets, as opposed to microprudential supervision, which examines each firm on its own. It tracks credit growth, leverage, maturity mismatch, concentration and interconnection, and uses system-wide stress tests to see how firms would behave together under one common shock. Its output is the judgment on whether to activate or release system-wide tools, which is why the function usually sits with a designated financial stability committee.

margin requirementStocks

The minimum equity a customer must contribute or maintain against a leveraged position. Initial margin is the portion of the purchase price funded from the customer's own money when the position is opened, and maintenance margin is the lower level account equity must stay above afterwards, with any shortfall triggering a call for more collateral or forced liquidation. Levels are set by regulators, exchanges and brokers, and a broker may impose stricter terms than the regulatory minimum on volatile instruments.

market equilibriumStocks

The price at which the quantity buyers want equals the quantity sellers offer, so no residual pressure remains in either direction. Above that level unsold supply pushes the price down, and below it unmet demand pulls the price up. In asset markets the condition is approached continuously rather than settled, because new information constantly changes what participants are willing to pay, and models such as the capital asset pricing model describe the set of prices at which every security is willingly held.

matched sale-purchase transactionOptionsStocks

A matched sale-purchase transaction is an open market operation in which a central bank sells a security to a dealer and simultaneously agrees to buy it back on a set future date at an agreed price. Economically it is a reverse repurchase agreement: cash leaves the banking system for the term of the deal, so reserve balances shrink and upward pressure is put on the overnight rate. The Federal Reserve used this name for its own draining operations, and the difference between the two leg prices functions as the interest earned by the dealer who supplied the cash.

mean-variance criterion(M-V criterion) StocksCrypto

A decision rule that ranks portfolios using only two statistics: expected return and variance of return. One portfolio dominates another if it offers at least as much expected return with no more variance, or less variance with no less expected return. The portfolios that survive this test trace out the efficient frontier. The rule assumes nothing beyond mean and variance matters to the investor, which holds exactly when returns are normally distributed or when preferences are quadratic, so skewness and fat tails are ignored by construction.

micro hedgeStocks

A hedge placed against one specific asset, liability or transaction rather than against the net exposure of a whole portfolio or balance sheet. A treasurer who sells a currency forward covering a single invoice, or a lender who buys a swap matched to one fixed-rate loan, has put on a micro hedge. It contrasts with a macro hedge, which offsets aggregate exposure in a single position. Micro hedging gives tighter matching and a clearer path to hedge accounting treatment, at the cost of more contracts to administer and higher transaction costs.

minimum-variance frontierStocks

The curve tracing the lowest portfolio variance achievable at each level of expected return, given a set of assets and their expected returns, variances and covariances. It is generated by solving for the weights that minimize variance subject to a target return and a full-investment constraint. The single point of lowest variance on the whole curve is the global minimum-variance portfolio. The upper half of the curve, from that point up, is the efficient frontier, because any portfolio on the lower half is beaten by one directly above it.

monetary targetingStocks

A monetary policy framework in which the central bank announces a growth rate for a money supply aggregate such as M1, M2 or M3 and adjusts its operations to hit it. The logic rests on the quantity theory: if velocity is stable, controlling money growth controls nominal spending and therefore inflation. Several central banks adopted the approach in the late 1970s and abandoned it once financial innovation made money demand unstable and the aggregates an unreliable guide, replacing it in most cases with inflation targeting.

monetary unionOptionsStocks

An arrangement in which several countries share a single currency, or permanently fix their currencies to one another, and hand monetary policy to one common authority. Members give up an independent policy rate and the ability to devalue, so adjustment to a shock that hits one member harder has to come through wages, prices, fiscal transfers or labor mobility. In exchange they remove exchange-rate risk and conversion costs on trade among themselves. The euro area is the largest example.

M1Stocks

A narrow measure of the money supply covering the most liquid forms of money: currency held by the public, demand deposits and other checkable deposits, plus, under the current United States definition, savings deposits including money market deposit accounts. It excludes time deposits and institutional money market fund shares, which sit in broader aggregates. The series was redefined in 2020 when a reserve requirement rule change removed the limit on savings account transfers, moving a large balance into the measure and making comparisons across that break misleading.

M3Stocks

A broad money supply aggregate that adds large time deposits, institutional money market fund balances, repurchase agreements and other wholesale liabilities to the narrower measures. It is intended to capture funding that behaves like money for institutions rather than only for households. The Federal Reserve stopped publishing it in 2006, judging that it conveyed no information about activity beyond the narrower aggregate at the cost of collecting it, while the European Central Bank continues to publish its own version and gives it a formal role in assessing monetary conditions.

Macroeconomic FactorStocks

An economy-wide variable affecting the returns of many assets at once, such as growth, inflation, real interest rates, credit spreads and currency moves. Factor models use them as the systematic component of return, regressing an asset's returns on the factors to estimate its sensitivities, so risk can be described as exposure to a small number of common drivers rather than to thousands of individual securities. The practical implication is that diversifying across many holdings sharing one exposure does little, because the shared driver moves all of them together.

Maintenance ExpensesStocks

The recurring costs of keeping an asset in working condition, such as repairs, servicing, cleaning, grounds care and routine parts replacement. Accounting treats them as period expenses because they restore rather than extend the asset's capability, while spending that lengthens useful life or increases capacity is capitalized and depreciated. In property analysis they are separated from capital expenditure when computing net operating income, and understating them is a common way that a projected yield on a rental property turns out to be unachievable in practice.

Marginal ProfitStocks

The additional profit earned from producing and selling one more unit, equal to marginal revenue minus marginal cost. It is the decision rule for output: as long as the figure is positive, expanding adds to total profit, and total profit is maximized where it reaches zero, meaning marginal revenue equals marginal cost. It differs from average profit per unit, which can still be positive after the marginal figure has turned negative, which is why a business judging expansion by average profitability can keep producing past the point that maximizes total profit.

Marginal propensity to import(MPM) Stocks

The fraction of an additional unit of national income that is spent on imports, calculated as the change in imports divided by the change in income. It matters because spending on imports leaves the domestic circular flow, so a higher value reduces the multiplier effect of any increase in domestic spending. An open economy with a high propensity therefore gets less domestic output from a given fiscal stimulus than a more closed one, and the leakage shows up in the trade balance rather than in domestic activity.

Market EfficiencyStocks

The degree to which prices reflect available information and to which a market performs its economic functions. Informational efficiency, the sense used in the efficient market hypothesis, concerns whether prices already embed information so that predictable excess returns are unavailable. Operational efficiency concerns transaction costs, meaning how cheaply and reliably trades are executed. Allocational efficiency concerns whether capital flows to its most productive uses. The three are related but distinct: a market can price information quickly while remaining expensive to trade in, and cheap execution does not guarantee informative prices.

Market PenetrationStocks

Both a measure and a strategy. As a measure it is a product's sales expressed as a share of the total addressable market, showing how much of the potential demand has been captured. As a strategy it means growing sales of existing products in existing markets, using price, promotion, distribution or share taken from competitors, rather than launching new products or entering new markets. It is generally the least risky growth option because product and market are both known, and its ceiling is the size of the market itself.

Market SaturationStocksCrypto

The point at which nearly everyone who wants a product already has it, so unit demand comes from replacement and population growth rather than from new adopters. Growth then depends on taking share from rivals, raising price, extending into adjacent categories or entering new geographies, and competition typically shifts toward cost and differentiation. For investors it marks the transition from a growth profile to a mature one, which usually means slower revenue expansion, steadier cash generation and a valuation reflecting distribution of cash rather than reinvestment.

Marketing CampaignStocks

A coordinated set of promotional activities with a defined objective, audience, message, budget and time frame, run across chosen channels. Results are judged against the objective using measures such as reach, conversion rate, customer acquisition cost and incremental revenue attributable to the effort, with attribution being the hard part because exposure and purchase are rarely linked directly. In financial analysis this spending sits in operating expenses, and a company sustaining revenue growth only by raising it faster than sales is buying growth rather than earning it.

Markets in Financial Instruments Directive(MiFID) Stocks

The European Union framework, applying from 2007, that harmonized rules for investment firms and trading venues across member states. It introduced a passport allowing a firm authorized in one state to operate throughout the bloc, ended national concentration rules that forced orders onto a domestic exchange, and created the multilateral trading facility as a recognized venue type, which opened equity trading to competition. It also set conduct standards including client categorization, suitability and best execution. A substantially expanded second version replaced it and extended the regime to more asset classes.

Married Filing JointlyStocks

A United States federal income tax filing status available to a couple who are married on the last day of the tax year, under which both report their combined income, deductions and credits on one return. Both spouses sign and each becomes jointly and severally liable for the full tax, interest and penalties, regardless of who earned the income, unless relief such as innocent spouse relief applies. The status carries wider bracket thresholds and a larger standard deduction than filing separately, and several credits are unavailable to those filing separate returns. Thresholds are adjusted annually.

Material Participation TestsStocks

A set of tests in United States Treasury regulations determining whether a taxpayer is involved in a business on a regular, continuous and substantial basis. The answer decides whether the activity is passive, and passive losses can generally only offset passive income, with the excess suspended until there is passive income or the activity is disposed of. The tests turn on hours devoted to the activity during the year, on whether that participation is substantially all of everyone's participation, and on facts such as prior years of involvement. Records supporting the hours claimed are the taxpayer's responsibility.

MedicaidStocks

A joint federal and state program in the United States paying for medical care for people with low income and limited assets, including a large share of long-term nursing home care. States administer it within federal rules, so eligibility categories, covered services and provider payment differ substantially by state. Because eligibility is means tested, applicants must meet income and asset limits, and transfers of assets made within a statutory look-back period before applying can trigger a penalty period of ineligibility. Limits and look-back rules are set by federal statute and state implementation.

Medicare taxStocks

A United States federal payroll tax funding Medicare hospital insurance, withheld from wages and matched by the employer, with self-employed individuals paying both halves through self-employment tax. Unlike the Social Security portion, it applies to all covered earnings with no wage cap. An additional levy applies to wages and self-employment income above statutory thresholds, withheld from the employee only, and a separate net investment income tax reaches certain investment income of higher earners. Rates and thresholds are set by statute, and the thresholds are not indexed for inflation.

Merchant Discount Rate(MDR) Stocks

The total percentage of a card transaction that a merchant pays its acquiring bank for accepting the payment. It bundles three components: interchange, which the acquirer passes to the card issuer and which is the largest part, the network assessment paid to the card scheme, and the acquirer's own markup. The rate varies with card type, whether the card was present, industry and transaction size, so a rewards or commercial card costs the merchant more than a basic debit card. Interchange caps in some jurisdictions directly reduce what merchants pay.

Merrill LynchStocks

A United States brokerage and investment bank founded in 1914 that built the largest retail brokerage network in the country, known as the thundering herd. It expanded into institutional trading, underwriting and asset management, and its losses on mortgage-related securities in 2007 and 2008 led to an agreed sale to Bank of America announced in September 2008, on the same weekend that Lehman Brothers failed. The wealth management business continues to operate under the name within Bank of America, while the investment banking operations were folded into the parent's markets division.

Micro-Investing PlatformStocksCrypto

An app or service letting people invest very small amounts, typically by allowing fractional shares and by automating contributions, such as rounding card purchases up to the next unit and investing the difference. The design targets the barriers of minimum investment size and inertia rather than security selection, and portfolios are usually a small set of exchange traded funds chosen by questionnaire. Costs deserve examination: a flat monthly fee that is trivial on a large balance can be a large percentage of a small one, and order routing or cash sweep arrangements can add indirect costs.

Middle-Income CountriesCrypto

A World Bank classification covering economies whose gross national income per capita, measured by the Atlas method, falls between the low-income and high-income thresholds, split into lower-middle and upper-middle bands. The thresholds are revised each year for inflation, and countries move between groups as their income and exchange rates change. The classification determines eligibility for concessional lending and shapes index providers' separate decisions about developed and emerging market status, although those index definitions also weigh market access, liquidity and regulatory quality rather than income alone.

Millage Rate(mill rate) Stocks

The rate used to compute property tax, expressed in mills, where one mill is one dollar of tax per thousand dollars of assessed value, or one tenth of one percent. Tax owed equals assessed value multiplied by the rate in mills and divided by one thousand, after any exemptions are deducted from the assessment. A single bill often combines separate rates levied by the county, municipality, school district and special districts. Because the rate applies to assessed rather than market value, and assessment ratios and reassessment cycles differ, two similar properties can face different effective burdens.

Modified Accelerated Cost Recovery System(MACRS) Stocks

The depreciation system used for most tangible business property placed in service in the United States since 1986. It assigns each asset class a recovery period and a method set by statute rather than by the owner's estimate of useful life, so a taxpayer does not choose the schedule. Most equipment uses a declining balance method that switches to straight line, while residential and non-residential buildings use straight line over long fixed periods. Convention rules determine how much depreciation the first and last years receive, and a separate alternative system applies to specified property.

Modified Cash BasisStocks

A hybrid accounting method recording most transactions when cash moves, as in cash basis accounting, but applying accrual treatment to selected items, most commonly capitalizing long-lived assets and depreciating them rather than expensing the purchase, and recording inventory and long-term debt. It gives a small business a clearer picture of capital spending and obligations than pure cash accounting without the full cost of accrual bookkeeping. It is not compliant with generally accepted accounting principles, so statements prepared this way carry a disclosure of the basis used and are unsuitable where audited accrual statements are required.

Modified Dietz MethodStocksCrypto

A way of calculating a portfolio's return over a period during which money was paid in or taken out, without requiring a valuation on each cash flow date. The return equals the gain, which is ending value minus beginning value minus net flows, divided by the beginning value plus each flow weighted by the fraction of the period it was present. Weighting the flows approximates the internal rate of return, which is why it is described as a money-weighted approximation. Accuracy falls when flows are large relative to the portfolio or when returns swing sharply within the period.

Modified Endowment Contract(MEC) Stocks

A life insurance policy funded faster than United States tax law permits for a policy to keep the ordinary insurance tax treatment, judged by a cumulative seven-pay test comparing premiums paid in the early years with those needed to fund the policy over seven level payments. Once a contract fails the test the classification is permanent. Withdrawals and loans are then taxed on a gains-first basis rather than as a return of premium, and an additional tax can apply before a stated age. The death benefit remains generally free of federal income tax.

Mom-and-PopStocks

A description of a small business owned and run by a family or an individual, with few employees and no outside capital, and by extension of individual retail investors as distinct from institutions. In market structure discussion the label is applied to order flow that is small and uninformed in the technical sense, and therefore attractive to market makers, which is why retail orders are often internalized or routed to wholesalers rather than sent to an exchange. As a business description it points to concentration risk, since owner, manager and key relationships often sit in the same person.

Momentum InvestingStocks

A strategy buying assets whose recent returns have been strong and avoiding or shorting those whose returns have been weak, based on the empirical finding that relative performance tends to persist over intermediate horizons. Academic implementations rank securities on returns over roughly the past year while skipping the most recent month to avoid short-term reversal, then hold for a period before rebalancing. The pattern is documented across equities, currencies, commodities and countries. Its characteristic risk is the crash: after a sharp market reversal the strategy can lose heavily and quickly, because prior losers rebound fastest.

Money ManagementStocksCrypto

The set of decisions governing how capital is deployed and protected, covering position sizing, exposure limits, use of leverage, cash reserves and the rules for adding to or cutting a position. In trading it is separated from strategy selection: the same entry signal produces very different outcomes depending on how much is risked per trade, because losses compound against a shrinking base and a large drawdown requires a disproportionately larger gain to recover. In the professional sense the phrase also refers to managing client assets for a fee, as an investment manager.

Money multiplierStocksCrypto

The ratio between the broad money supply and the monetary base, describing how much deposit money the banking system supports for each unit of central bank money. In the textbook version with a required reserve ratio, the maximum equals one divided by that ratio, reduced by cash the public holds and by reserves banks keep beyond the requirement. In practice the relationship is unstable, and lending is constrained by capital, credit demand and risk appetite rather than by reserves, which is why large increases in reserves after 2008 did not produce proportional growth in broad money.

Monopolistic MarketsStocks

Markets in which a single seller faces the whole demand curve, so it sets a price rather than accepting one, and restricts output to the point where marginal revenue equals marginal cost. The result is a higher price and smaller quantity than under competition, with part of the consumer surplus transferred to the seller and part lost entirely as deadweight loss. Such positions persist only where entry is blocked, by patents, licences, control of an input, network effects or a cost structure that makes one supplier cheapest. Competition authorities generally regulate conduct rather than the position itself.

Morbidity RateStocks

The frequency with which a defined illness or disability occurs in a population over a period, expressed as cases per unit of exposure. It differs from mortality, which counts deaths, and it is the basis for pricing health, disability income, critical illness and long-term care coverage, where the insured event is becoming unwell rather than dying. Insurers build tables by age, sex, occupation and medical history, and the practical difficulty is that improving survival can raise the rate, because people who once died now live with a condition that generates claims.

Mortality TableStocks

A table showing, for each age, the probability that a person dies before the next birthday, together with derived figures such as the number surviving from a starting cohort and remaining life expectancy. Actuaries build them from population or insured-lives experience, separated by sex and often by smoker status, and use them to price life insurance and annuities and to value pension liabilities. A period table applies rates observed in one year across all ages, while a generational table projects future improvement in longevity, and the choice materially changes the value of a long-dated obligation.

Mortgage RecastOptionsStocks

A lender's re-amortization of an existing mortgage after the borrower makes a large lump sum payment toward principal, producing a smaller monthly payment over the original remaining term at the same interest rate. It differs from refinancing, which replaces the loan and its rate and involves full underwriting and closing costs, whereas this keeps the existing note and usually costs only a modest processing fee. Not all loans are eligible, and government-backed programmes commonly exclude it. Total interest paid falls, but the maturity date does not move earlier.

Mosaic TheoryStocks

The principle that an analyst may combine public information with non-material non-public details gathered from many sources to reach a conclusion that is itself valuable, without violating insider trading rules. The distinction rests on materiality: assembling small pieces, none of which would move a price alone, is research, while using a single piece a reasonable investor would consider important is not. The line is fact-specific and hard to draw in advance, which is why firms document how a conclusion was reached and why paying an insider for a fragment can taint the whole analysis.

Mutual CompanyStocks

A company owned by its customers rather than by outside shareholders, so policyholders in a mutual insurer or depositors in a mutual savings institution hold the residual claim and the voting rights. With no external equity to serve, surplus is retained or returned to members as dividends or better terms, and the structure is defended on the ground that it removes the conflict between shareholder and customer interests. The trade-off is access to capital, since the entity cannot issue ordinary shares, which is why some convert to stock form through a demutualization that distributes shares or cash to members.

Municipal Note(muni note, short-term municipal note) Stocks

A municipal debt security with a short maturity, typically a year or less, issued to bridge timing differences between a government's spending and its receipts. Anticipation notes for taxes, revenues, grants and future bond issues are the common forms.

Municipal Market Data Curve(MMD curve, MMD scale) Stocks

A benchmark yield curve for high-grade tax-exempt municipal bonds, published by a commercial data provider and widely used to price new issues and quote spreads in the municipal market.