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 1.4120 for 2025-09-17.

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Figures for 2025-09-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0514
Historical Volatility (Parkinson)	0.0574
Implied Volatility (Calls)	0.1449
Implied Volatility (Puts)	0.1011
Implied Volatility (Mean)	0.1230
Put-Call Implied Volatility Ratio	0.6974
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	1.4120
Put-Call Ratio (Open Interest)	6.5439