Glossary Detail: Put/Call Ratio
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Backtesting Put/Call Ratio on High-Beta Names
Ratio of put volume to call volume. Below 0.7 = bullish call bias; above 1.0 = bearish or hedging activity.
Further Details:
The Put/Call (P/C) Ratio measures the relative trading activity between put and call options. It's calculated by dividing the total put volume by total call volume across all strikes and expirations for a given underlying.