Put-Call Ratio (Volume) (30-Day)

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

Vanguard 500 Index Fund ETF Shares (VOO) had 30-Day Put-Call Ratio (Volume) of 0.5325 for 2026-03-19.

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Figures for 2026-03-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1250
Historical Volatility (Parkinson)	0.1215
Implied Volatility (Calls)	0.2182
Implied Volatility (Puts)	0.2028
Implied Volatility (Mean)	0.2105
Put-Call Implied Volatility Ratio	0.9294
Implied Volatility Skew	0.1128
Option Statistics
Put-Call Ratio (Volume)	0.5325
Put-Call Ratio (Open Interest)	1.0081