Put-Call Ratio (Volume) (10-Day)

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

Vanguard S&P 500 ETF (VOO) had 10-Day Put-Call Ratio (Volume) of 0.5740 for 2025-12-12.

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Figures for 2025-12-12

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0830
Historical Volatility (Parkinson)	0.0846
Implied Volatility (Calls)	0.1244
Implied Volatility (Puts)	0.1301
Implied Volatility (Mean)	0.1272
Put-Call Implied Volatility Ratio	1.0460
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.5740
Put-Call Ratio (Open Interest)	0.7538