Individual skill
stock-liquidity
Analyze how liquid a stock is using Yahoo Finance data (yfinance): bid-ask spreads, volume and dollar volume (ADTV), top-of-book and options depth, square-root market impact and slippage estimates, turnover ratio, and Amihud illiquidity, rolled into a liquidity grade. Use this skill whenever the user asks about liquidity or trading costs — how easily a position can be entered or exited, what a large order would do to the price, spread or execution-cost estimates, order book depth, volume patterns, or liquidity comparisons — especially for small caps, penny stocks, and thinly traded names.
plugins/market-analysis/skills/stock-liquidity/SKILL.md
Source commit a0850786e72aa23b92862f9f1635b0de506fe206
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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- Repository last updated
- Nov 4, 2026
- License
- MIT
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- claude-code Repository topic
- skills Repository topic
- trading Repository topic
- agent-skills Repository topic
- finance Derived category
- data Derived category
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# Stock Liquidity Analysis Skill
If your host has not already executed the shell probes below (for example, in Codex), run the commands inside the `!` wrappers with its shell tool before choosing a setup path. Use the actual output; if shell access is unavailable, report that limitation.
Analyzes stock liquidity across multiple dimensions — bid-ask spreads, volume patterns, order book depth, estimated market impact, and turnover ratios — using data from Yahoo Finance via [yfinance](https://github.com/ranaroussi/yfinance).
Liquidity matters because it determines the real cost of trading. The quoted price is not what you actually pay — spreads, slippage, and market impact all eat into returns, especially for larger positions or less liquid names.
**Important**: This is for research and educational purposes only. Not financial advice. yfinance is not affiliated with Yahoo, Inc.
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## Step 1: Ensure Dependencies Are Available
