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option-chain

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Get option chain data including calls and puts with strikes, bids, asks, volume, open interest, and implied volatility. Use when user asks about options, option prices, calls, puts, or option chain for a specific expiration date.

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Source SKILL.md: https://github.com/staskh/trading_skills/blob/HEAD/.claude/skills/option-chain/SKILL.md

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Option Chain

Fetch option chain data from Yahoo Finance for a specific expiration date.

Instructions

Note: If uv is not installed or pyproject.toml is not found, replace uv run python with python in all commands below.

First, get available expiration dates:

uv run python scripts/options.py SYMBOL --expiries

Then fetch the chain for a specific expiry:

uv run python scripts/options.py SYMBOL --expiry YYYY-MM-DD

Arguments

  • SYMBOL - Ticker symbol (e.g., AAPL, SPY, TSLA)
  • --expiries - List available expiration dates only
  • --expiry YYYY-MM-DD - Fetch chain for specific date

Output

Returns JSON with:

  • calls - Array of call options with strike, bid, ask, volume, openInterest, impliedVolatility
  • puts - Array of put options with same fields
  • underlying_price - Current stock price for reference

Present data as a table. Highlight high volume/OI strikes and notable IV levels.

Dependencies

  • pandas
  • yfinance

Timezone

All timestamps and time-based calculations must use the America/New_York timezone. All JSON output must include generated_at (NY time string) and data_delay fields.