Put-Call Ratio (Volume) (150-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

SPDR S&P 500 ETF (SPY) had 150-Day Put-Call Ratio (Volume) of 1.0388 for 2025-12-09.

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Figures for 2025-12-09

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1116
Historical Volatility (Parkinson)	0.0977
Implied Volatility (Calls)	0.1706
Implied Volatility (Puts)	0.1649
Implied Volatility (Mean)	0.1677
Put-Call Implied Volatility Ratio	0.9664
Implied Volatility Skew	0.0766
Option Statistics
Put-Call Ratio (Volume)	1.0388
Put-Call Ratio (Open Interest)	2.1279