--- title: "Liquidity Quality Scorecard" description: "Liquidity quality scorecard: evaluate liquidity across seven dimensions, spread, depth, volume, continuity, time-of-day, and slippage risk before a trade." canonical: https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/liquidity-quality-scorecard/ source: "Swoopr Investment: https://www.getswoopr.com" --- ## Direct Answer > The liquidity quality scorecard evaluates a stock's tradability across seven dimensions, spread quality, order book depth, volume profile, price continuity, time-of-day pattern, slippage risk, and trading conditions, before you enter a position. Critical unknowns in any dimension stay visible in the score rather than being averaged away. # Liquidity Quality Scorecard Evaluate spread quality, order book depth, volume profile, price continuity, time-of-day patterns, slippage risk, and trading conditions across seven structured dimensions before entering a position. Critical unknowns stay visible, they are never hidden behind a composite score. **Educational tool only.** All inputs are user-entered observations based on publicly available market data. Results are structured research notes, not investment advice, trade recommendations, or safety ratings. Liquidity conditions can change rapidly. ## Liquidity Quality Scorecard Complete each section based on your own research into publicly available market data. **Unknown** answers are never assigned neutral points. A critical unknown prevents any reassuring overall label. No brokerage credentials, account IDs, or private data are required or accepted. 0 of 7 sections answered 1 Security Context Not started ▼ Record the security you are evaluating. These details appear in the summary and any export. Do not enter brokerage account numbers, personal identifiers, or API credentials. Ticker symbol Exchange / market center Security type Select type Common stock ETF Preferred stock ADR REIT Other Approximate share price ($) Intended order size (shares) Date of review Is the security's exchange listing and primary market center confirmed? Critical Strong evidence Some evidence Weak evidence Unknown N/A Hard stop, primary market center unconfirmed Without confirming which exchange is the primary listing, quoted spread and NBBO data cannot be attributed correctly. Resolve before proceeding. Confidence: Select High, primary source, exchange website or official filing Medium, broker data, financial data aggregator Low, secondary summary or assumption Is average daily volume (ADV) documented for at least 20 trading days? Critical Strong evidence Some evidence Weak evidence Unknown N/A Hard stop, ADV not documented Average daily volume over at least 20 sessions is the baseline denominator for relative order size and slippage estimation. Without it, no meaningful liquidity ratio can be calculated. Confidence: Select High Medium Low 2 Spread & Quote Quality Not started ▼ Is the typical quoted bid-ask spread documented (absolute and as % of price)? Critical Strong evidence Some evidence Weak evidence Unknown N/A Hard stop, quoted spread not documented The bid-ask spread is the minimum explicit round-trip execution cost. Without it, execution cost cannot be estimated. Confidence: Select High, observed directly at intended time of day Medium, observed at different session or interpolated Low, historical or aggregated estimate Is NBBO conformance or effective spread compared to the quoted spread? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Is quote size (displayed quantity at best bid/ask) documented? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Is spread volatility documented, does it widen significantly around events? Contextual Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low 3 Order Book Depth Not started ▼ Is visible depth (Level 2) documented at multiple price levels? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High, direct L2 observation at intended session Medium, aggregated or delayed data Low, inferred from trade prints only Is order-size-to-depth ratio calculated (intended order vs. shares available within 0.5% of mid)? Critical Strong evidence Some evidence Weak evidence Unknown N/A Hard stop, order-size-to-depth ratio not calculated Without comparing your intended order size to displayed depth, price impact from eating through the book cannot be estimated. This is required for any non-trivial order size. Confidence: Select High Medium Low Is the presence (or absence) of hidden and iceberg orders noted? Contextual Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low 4 Volume Profile Not started ▼ Is dollar volume (ADV × price) documented and sufficient relative to intended position size? Critical Strong evidence Some evidence Weak evidence Unknown N/A Hard stop, dollar volume not documented Dollar volume determines whether a position size is feasible without becoming a significant fraction of the market. Without it, participation rate and market impact cannot be assessed. Confidence: Select High Medium Low Is volume trend (expanding, contracting, or stable) documented over 60+ days? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Is share float and float turnover rate documented? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low 5 Price Continuity & Gaps Not started ▼ Is recent frequency of price gaps (overnight and intraday) documented? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High, reviewed 60+ daily opens Medium, reviewed 20-60 daily opens Low, fewer than 20 sessions reviewed Are thin-book zones (price levels with minimal displayed depth) identified? Contextual Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Is intraday price continuity typical (no unexplained discontinuities in normal sessions)? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low 6 Slippage & Market Impact Not started ▼ Is estimated slippage for the intended order size calculated from spread and depth data? Critical Strong evidence Some evidence Weak evidence Unknown N/A Hard stop, slippage not estimated Without a slippage estimate derived from spread and order book depth, total execution cost cannot be assessed for the intended order size. The half-spread is the minimum cost baseline; market impact adds to it. Confidence: Select High, derived from live L2 at intended session Medium, derived from historical spread and ADV Low, rough estimate only Is order participation rate (order size / ADV) within an acceptable threshold? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Is a stressed scenario (wider spread, lower depth) considered for the estimate? Contextual Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low 7 Trading Conditions & Risks Not started ▼ Is intended session (regular hours vs. pre/post market) confirmed and liquidity expectations adjusted? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High, all-session volume profile reviewed Medium, regular hours only reviewed Low, no session-level breakdown Is trading halt history for this security documented? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Are upcoming scheduled liquidity events (earnings, index reconstitution, lockup expiry, dividend) documented? Material Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Is short interest and its effect on borrow availability and price pressure documented? Contextual Strong evidence Some evidence Weak evidence Unknown N/A Confidence: Select High Medium Low Generate Summary Clear All ### Liquidity Review Summary | Section | Strong | Some | Weak | Unknown | N/A | Status | | --- | --- | --- | --- | --- | --- | --- | Disclaimer: This scorecard is for educational purposes only. It does not certify execution quality, constitute investment advice, or predict outcomes. Results reflect only the evidence you have documented. Liquidity conditions change rapidly, this review is valid only for the time and conditions at which data was collected. Reviewed: . Print / Export ## Methodology This scorecard applies a structured evidence-documentation framework across seven liquidity dimensions. Each question asks you to rate the *quality of evidence you have gathered*, not the underlying market condition. The distinction matters: evidence can be strong that liquidity is poor, or weak that liquidity is good. ### Rating scale | Rating | Meaning | | --- | --- | | **Strong evidence** | Primary source, direct observation, or authoritative data feed covering the exact security and session. | | **Some evidence** | Indirect or incomplete data, e.g. end-of-day summary instead of intraday, or aggregated data from a third-party platform with a known delay. | | **Weak evidence** | Inferred from proxies, very short observation window (<5 sessions), or data of uncertain provenance. | | **Unknown** | No data was located or retrievable within a reasonable research effort. Always recorded as Unknown, never defaulted to "some evidence." | | **N/A** | The question does not apply to this security type or situation (e.g. float for an ETF that tracks a total-return index). | ### Hard-stop conditions A hard stop is triggered when a **Critical**-tagged question receives Unknown or Weak evidence. Hard stops do not claim that the security is untradeable, they mean evidence is insufficient to form a grounded liquidity picture for your intended trade. Hard stops that remain unresolved prevent a reassuring overall label from being assigned. - Primary exchange listing unconfirmed - Average daily volume not documented over 20+ sessions - Quoted bid-ask spread not documented - Order-size-to-depth ratio not calculated - Dollar volume not documented - Slippage not estimated from spread and depth data ### Worked example, order size vs. depth ratio Suppose you want to buy 2,000 shares of a stock priced at $50, and your Level 2 data shows 8,000 shares displayed on the ask within $0.25 of the inside ask (0.5% of $50). Your order-size-to-depth ratio is 2,000 / 8,000 = 25%. At 25%, your market order would consume roughly one quarter of the visible offer depth. You should estimate meaningful price impact above the inside ask and consider limit orders or breaking the order into smaller tranches. ### Overall rating labels | Label | Meaning | | --- | --- | | **Evidence substantially documented** | All critical questions answered with at least some evidence; no hard stops triggered; most answers at medium or high confidence. | | **Evidence partially documented** | No critical hard stops, but one or more sections have material unknowns or low-confidence evidence. | | **Material unknowns** | Multiple unknowns across non-critical questions, or weak evidence on critical items. Research required before trading. | | **Critical unknowns** | One or more hard-stop conditions triggered. Evidence is insufficient. Resolve unknowns or treat them as execution constraints. | | **Review incomplete** | Fewer than three sections have any answers. Not enough to generate a meaningful summary. | ## Frequently Asked Questions - ### What is a liquidity quality scorecard and why does it matter? A liquidity quality scorecard is a structured research framework for evaluating how easily a security can be bought or sold at a fair price without moving the market against you. Liquidity affects every aspect of trade economics: the bid-ask spread is an immediate cost, order book depth determines how much your order moves the price, and volume sets the ceiling on position size before participation becomes a market-moving event. Assessing these factors before entering, not after, prevents surprise execution costs from eroding strategy returns. - ### What makes a security "liquid enough" to trade? There is no universal threshold, but useful benchmarks exist. For most retail-sized orders (under a few thousand shares), a spread under 0.1% of price and an order size well below 1% of 20-day ADV is often treated as low-impact. For larger orders, some practitioners cap participation at 20-25% of ADV before worrying about moving the market. Dollar volume above $1 million per day is a common minimum floor for institutional screens. The "right" liquidity threshold depends on your order size, holding period, and cost budget, not on the stock's name or reputation. - ### This tool asks me to enter data, why doesn't it pull live quotes automatically? This is an educational tool hosted without access to real-time data feeds. Brokerage-grade liquidity data (Level 2 depth, effective spread, print-by-print trade data) comes from regulated data vendors, and distributing it requires exchange agreements and licensing. More importantly, making you research and enter the data yourself is pedagogically intentional: understanding *where* the number came from and *how stale it is* is part of what this tool is teaching. A number pulled invisibly from a feed hides those questions. You should check live quotes in your broker's platform at the time you intend to trade. - ### What is a "hard stop" and should I always refuse to trade when one is triggered? A hard stop indicates that evidence on a critical dimension is missing or too weak to form a grounded view. It does not mean the security is untradeable or that something is wrong. It means *you do not yet have enough information* to make a liquidity judgment for this trade size. The correct response is to fill the information gap (check your broker's Level 2 data, look up the SEC Rule 605 execution quality report the relevant market maker publishes, or reduce your order to a size where the unknown is less material) rather than either proceeding blind or abandoning the trade automatically. Treat hard stops as research tasks, not automatic vetoes. - ### How does time of day affect the liquidity picture I'm documenting? Trading volume follows a U-shape through the regular session, highest in the first and last 30 to 60 minutes and lowest around midday, while bid-ask spreads are typically widest at the open and wider again near the close, so volume and the cost of trading do not move together. Spreads can be 2-5 times wider in the pre-market or after-hours session compared to regular hours, and order book depth drops sharply. If you are documenting spread and depth data, record the time at which you observed it, data from 2:30pm ET may not be representative of conditions at 9:35am ET or 3:58pm ET. - ### Can I use this scorecard for ETFs, ADRs, or preferred stocks? Yes, with adjustments. ETFs have an additional liquidity layer beyond the on-screen order book: authorized participants can create or redeem shares against the underlying basket, which suppresses the effective spread even when displayed depth looks thin. For ETFs, the creation/redemption mechanism and the liquidity of the underlying basket are additional material factors not fully captured by the order book alone. ADRs have a cross-currency and time-zone dimension, the underlying ordinary share's trading session may be closed when you trade, and currency bid-ask adds to cost. For preferred stocks, trading activity is often concentrated around the par value, and the float is frequently small. The framework applies to all of these; the **N/A** rating exists for questions that genuinely do not apply to the specific security type. - ### What is the difference between the quoted spread and the effective spread? The *quoted spread* is the difference between the best displayed ask and the best displayed bid at the moment you observe the market. It is the maximum round-trip cost you would pay if both sides of your trade executed at those posted prices. The *effective spread* is calculated from actual trade executions: it measures how much you actually paid relative to the midpoint at the time of your trade. Effective spreads are often narrower than quoted spreads because price improvement (executing inside the quote) and payment for order flow arrangements can route orders to execution at better prices than displayed. Rule 605 of Regulation NMS is an SEC rule, and it requires each market center, broker or dealer in scope to publish its own monthly execution quality report free to the public and to keep it posted for three years. Those reports, broken out by security, order type and order size, are the primary source for effective-spread estimates without a real-time institutional data subscription. - ### How should the scorecard be adapted for an intended position built over several days? Spreading entry across sessions changes the relevant comparison from order size against a single day's volume to daily participation against typical daily volume. A position representing several days of turnover in one go can be entirely reasonable at a fifth of that per day. Recording the intended daily participation rate alongside the total position size is what makes the liquidity assessment match the execution plan. - ### What should be recorded when a security fails the scorecard but is traded anyway? The reason for proceeding, the size actually taken relative to the size originally intended, and the cost outcome. Keeping that record turns a series of exceptions into evidence about whether the thresholds are calibrated or whether they are routinely overridden. Without it, the scorecard becomes a formality, and the question of whether its limits are the right ones can never be answered from experience. ## References - [SEC: Frequently Asked Questions About Regulation NMS Rule 605](https://www.sec.gov/rules-regulations/staff-guidance/trading-markets-frequently-asked-questions-0) - [FINRA: Rules and Guidance](https://www.finra.org/rules-guidance) - [SEC: Investor.gov](https://www.investor.gov/) ## Supporting Articles - [How to Estimate Slippage Before Entering a Trade](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/how-to-estimate-slippage-before-entering-a-trade/) - [How to Calculate the Bid-Ask Spread and Effective Trading Cost](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/how-to-calculate-the-bid-ask-spread-and-effective-trading-cost/) - [Order Book Depth: What It Shows and What It Hides](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/order-book-depth-what-it-shows-and-what-it-hides/) - [Displayed Liquidity vs. Hidden Liquidity Explained](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/displayed-liquidity-vs-hidden-liquidity-explained/) - [Why Liquidity Changes by Time of Day](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/why-liquidity-changes-by-time-of-day/) - [Share Volume vs. Dollar Volume vs. Trade Count](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/share-volume-vs-dollar-volume-vs-trade-count/) - [How Float and Market Capitalization Affect Liquidity](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/how-float-and-market-capitalization-affect-liquidity/) - [Liquidity Gaps, Thin Books, and Price Discontinuities](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/liquidity-gaps-thin-books-and-price-discontinuities/) - [Common Liquidity Analysis Mistakes](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/common-liquidity-analysis-mistakes/) - [Market Structure & Trade Execution Hub](https://www.getswoopr.com/markets/execution/) - [Risk Management](https://www.getswoopr.com/risk-management/) - [Execution Cost Calculator](https://www.getswoopr.com/tools/execution-cost-calculator/) ## Related Reading - [Quotes, Spreads & Liquidity](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/) the section this guide belongs to - [Absorption Example: How Aggressive Volume Gets Absorbed](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/absorption-example/) a companion guide in this cluster - [Bid-Ask Spread Cost Calculator](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/bid-ask-spread-cost-calculator/) a companion guide in this cluster - [Bid Price vs. Ask Price: How Quotes Actually Work](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/bid-price-vs-ask-price-how-quotes-actually-work/) a companion guide in this cluster - [Buy/Sell Aggressor Volume Explained](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/buy-sell-aggressor-volume/) a companion guide in this cluster - [Common Liquidity Analysis Mistakes](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/common-liquidity-analysis-mistakes/) a companion guide in this cluster - [Depth & Slippage Simulator](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/depth-and-slippage-simulator/) a companion guide in this cluster - [Displayed Liquidity vs. Hidden Liquidity Explained](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/displayed-liquidity-vs-hidden-liquidity-explained/) a companion guide in this cluster - [DOM Ladder (Depth of Market) Explained](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/dom-ladder/) a companion guide in this cluster - [Exhaustion Example: When a Volume Surge Fails to Move Price](https://www.getswoopr.com/markets/execution/quotes-spreads-and-liquidity/exhaustion-example/) a companion guide in this cluster