Options Volume Analysis - Put/Call Ratio History
Last reviewed: by Options Analysis Suite Research.
What Does Options Volume Tell You?
When to Use This
Best for: Detecting shifts in market sentiment and unusual trading activity
Market condition: Particularly informative around earnings, FDA decisions, or any event where informed traders may position ahead
Example: AMD shows 3x normal call volume concentrated in next-week 180 calls. Unusual activity may signal informed positioning ahead of a catalyst
Options volume measures the number of contracts traded during a given period. Historical volume patterns reveal sentiment shifts, unusual activity, and the flow of capital into calls vs puts over time. The put/call volume ratio is one of the oldest and most widely followed options sentiment indicators.
What Are the Key Metrics?
- Put/call ratio: Total put volume ÷ total call volume. Above 1.0 = more put activity (bearish sentiment or hedging). Below 0.7 = call-heavy (bullish). Extreme readings are often contrarian indicators.
- Volume relative to OI: When daily volume exceeds open interest at a strike, it signals aggressive new positioning (not just maintenance of existing positions).
- Volume spikes: A sudden 3-5x increase in normal volume, especially concentrated in specific strikes or expirations, flags unusual activity worth investigating.
How Is This Used in Trading?
- Unusual activity detection: Volume > 3x 20-day average with directional concentration (mostly calls or mostly puts) may indicate informed positioning
- Sentiment confirmation: Confirm a technical breakout with call volume expansion, or a breakdown with put volume surge
- Contrarian signals: Extreme put/call ratios (above 1.5 or below 0.5) historically correlate with reversals; the crowd is often wrong at extremes
Limitations and Caveats
- Volume includes both legs of spread trades; a bull call spread counts as both a buy and a sell at different strikes
- Cannot distinguish opening from closing transactions
- Market maker activity and hedging contribute to volume but aren't directional signals
- Put/call ratio can be distorted by index hedging activity unrelated to single-stock sentiment
Explore live volume data: SPY · /ES · BTC-USD
Related Screeners
Most Active Options: highest total contract volume · Unusual Activity: breadth count of contracts with vol/OI > 2 AND vol ≥ 500 · Biggest Put/Call Change: overnight shifts in flow skew
Related Concepts
Open Interest · Put/Call Ratio · Unusual Options Activity · Market Structure · Dealer Positioning
This section is part of the Options Analysis Suite Documentation. Explore the full Charts & Analytics hub for every options analytics view.