Understanding the Page Layout

The page is organized from market-wide to security-specific, top to bottom:

• ILLIQ Composite Chart (Top)

  Shows market-wide illiquidity. Defaults to one year, but use the date range selector to view the full history. Look for current level vs. historical peaks.

• Liquidity Changes by Sector (Middle)

  Average illiquidity and daily change by sector. Bar chart shows % of securities with increasing vs. decreasing illiquidity. Filter by country.

• Largest Levels of Illiquidity

  Securities with the highest current ILLIQ values. These are the most expensive to trade right now.

• Largest Increases in Illiquidity

  Securities where trading conditions are deteriorating fastest. Early warning of potential execution difficulties.

Navigating the Page

Here's how to use the page effectively:

• Start with the Composite Chart

  Check if market-wide illiquidity is elevated compared to history. High levels suggest caution across all trading.

• Review Sector Conditions

  Use the sector table to identify which industries have favorable vs. challenging liquidity. Filter by country if needed.

• Check High-ILLIQ Securities

  Scan 'Largest Levels' for any of your holdings or potential trades. These require careful execution.

• Monitor Deteriorating Conditions

  Watch 'Largest Increases' for positions where trading is getting harder. Consider adjusting exit strategies.

• Access Detailed Analysis

  Click any security row to open its full analysis page with time series, forecasts, and model details.

Comprehensive Liquidity Monitoring

The page provides multiple perspectives on market liquidity:

• Full Historical Context

  Adjust the date range to compare current conditions to past stress events like 2008 and 2020.

• Sector-Level Granularity

  See which industries have favorable vs. challenging trading conditions. Useful for sector rotation and allocation decisions.

• Security-Level Alerts

  The ranking tables highlight specific securities requiring attention, either due to high absolute illiquidity or rapid deterioration.

• Trend Analysis

  Track whether illiquidity is increasing or decreasing at market, sector, and security levels.

• Interactive Features

  Date range selector on the composite chart, country filter on the sector table, and click-through to detailed analyses.

Identifying Execution Challenges

The ranking tables flag securities that may require special attention:

• Execution Risk Identification

  Securities in 'Largest Levels' have high price impact. Plan for smaller order sizes or patient execution.

• Deterioration Monitoring

  Securities in 'Largest Increases' show worsening conditions. Review these positions regularly.

• Market Stress Detection

  When the composite spikes or table values show broad increases, market-wide stress is occurring.

• Opportunity Assessment

  Sectors with low average ILLIQ may offer favorable trading conditions for rebalancing or new positions.

Daily Updates

All data updates daily with the latest market information:

• End-of-Day Refresh

  The composite index, sector table, and ranking tables update each trading day with the latest illiquidity calculations.

• Global Market Coverage

  Data covers major global equity markets. Use the country filter to focus on specific regions.

• Actionable Information

  Click any security to access detailed analysis with forecasts and model statistics for execution planning.

• Risk Management Support

  Monitor portfolio holdings against the ranking tables to identify positions with deteriorating liquidity.

Individual Security Analysis

Click any security in the ranking tables to access detailed analysis:

• Historical Time Series

  View how the security's illiquidity has evolved over time. Identify patterns and stress periods.

• Advanced Illiquidity Models

  Four model specifications available: HIST, AMEM (asymmetric), SMEM (spline-based), and MFMEM (multi-frequency).

• Illiquidity Forecasts

  Forward-looking illiquidity estimates to help plan future execution strategies.

• Model Diagnostics

  Statistical measures to assess forecast reliability and model fit.

Cross-Sector Analysis

The sector table enables comparative analysis:

• Industry Comparisons

  Compare liquidity conditions across sectors to identify favorable trading environments.

• Relative Value Assessment

  Understand which sectors offer better execution conditions for similar investment themes.

• Concentration Analysis

  Identify if liquidity risk is concentrated in specific sectors or spread across the market.

• Condition Assessment

  Use sector patterns to gauge overall market liquidity health beyond the composite index.

Portfolio Applications

Apply liquidity insights to portfolio management:

• Execution Strategy Planning

  Use illiquidity data to choose appropriate execution methods: algo trading, VWAP, or patient limit orders.

• Position Size Considerations

  Factor liquidity into position sizing. Illiquid securities may warrant smaller positions or longer holding periods.

• Liquidity Risk Management

  Monitor portfolio holdings against the ranking tables. High-ILLIQ positions may need exit planning.

• Trading Cost Awareness

  Understand that illiquid securities incur costs beyond bid-ask spreads through price impact.

The Amihud ILLIQ Measure

V-Lab uses the Amihud (2002) illiquidity measure, widely used in academic research and practice:

Sector Classification

Securities are grouped by GICS (Global Industry Classification Standard) sectors. The sector table shows average ILLIQ levels and changes for each sector. Use this to identify which industries have favorable vs. challenging trading conditions.

Data Sources and Processing

The illiquidity calculations use high-quality market data:

• Daily Market Data

  Daily returns and trading volumes from major global exchanges, processed end-of-day.

• Cross-Sectional Coverage

  Global equity coverage across developed and emerging markets.

• Time Series History

  The ILLIQ Composite chart defaults to one year but can display the full available history. Individual securities may have varying history lengths.

• Statistical Filtering

  Extreme outliers are filtered to ensure robust averages. The sector table excludes securities with ILLIQ above 50,000.

Interpreting Illiquidity Values

What counts as high vs. low illiquidity?

Large-cap stocks typically show ILLIQ values of 1-100. Mid-caps range 100-1,000. Small-caps can exceed 1,000, with micro-caps reaching 4,000+. All levels increase during market stress.

Why does illiquidity vary so much across securities?

Illiquidity depends on trading volume and price volatility. Large, actively traded stocks have low ILLIQ. Small, thinly traded stocks have high ILLIQ. Both volume and volatility can change over time.

Using the Page Effectively

How should I prioritize what to look at?

Start with the ILLIQ Composite to gauge market conditions. Then check the sector table for your areas of interest. Finally, scan the ranking tables for any holdings or potential trades.

What does it mean when a security appears in 'Largest Increases'?

Trading conditions are deteriorating for that security. The change may be temporary (earnings, news) or persistent (fundamental decline in trading interest). Click through to view the trend.

How often should I check this page?

Daily for active traders. Weekly for portfolio managers. Always before planning large trades or during market volatility.

Frequently Asked Questions

Common questions from V-Lab users:

How do I download the data?

Click the download button on the ILLIQ Composite chart. You must be logged in with a V-Lab account. For individual securities, go to their analysis pages.

Can I see different illiquidity models?

Yes. Click any security to access its detailed analysis page, or use the search bar in the main navigation to find a specific security. You can select from four model specifications (HIST, AMEM, SMEM, and MFMEM) via the search bar, navigation menu, or on the analysis page itself.

How do I interpret the ILLIQ Composite chart?

Higher values mean market-wide illiquidity is elevated. Compare current levels to historical peaks (2008, 2020) to gauge severity. Spikes indicate market stress when trading becomes expensive.

Why did illiquidity suddenly spike for a security?

Common causes: earnings announcements, news events, index rebalancing, or general market stress. Check if the spike is isolated to one security or part of a broader pattern.

Are illiquidity forecasts available?

Yes. Click through to individual security analysis pages, or use the search bar in the main navigation to find a specific security. The analysis pages show forward-looking illiquidity estimates from the various model specifications.

Trade Execution

• Monitor Daily

  Check this page each morning to understand current market liquidity conditions before trading.

• Check Before Large Trades

  Before executing large orders, verify current illiquidity for the target securities.

• Watch for Deterioration

  Securities appearing in 'Largest Increases' may need adjusted execution strategies.

• Order Sizing

  Use illiquidity information to set appropriate order sizes and choose execution algorithms.

Portfolio Management

• Risk Monitoring

  Monitor portfolio holdings against the ranking tables to identify liquidity risk concentrations.

• Rebalancing

  Use sector illiquidity data when planning allocation changes. Favor sectors with lower ILLIQ when possible.

• Concentration Analysis

  Track whether liquidity risk is concentrated in specific positions or spread across the portfolio.

• Timing Considerations

  When the ILLIQ Composite is elevated, consider delaying non-urgent rebalancing or using more patient execution.

Deeper Analysis

• Individual Security Analysis

  Click through to individual security pages for forecasts and model-based estimates.

• Search for Securities

  Use the search bar in the main navigation to find specific securities and access their detailed analysis.

• Cost Awareness

  Remember that illiquid securities incur costs beyond bid-ask spreads through market impact.