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 S&P Small-Cap 600 ETF (VIOO) 30-Day Put-Call Ratio (Volume) data is not available for 2025-08-28.

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2139
Historical Volatility (Parkinson)	0.1403
Implied Volatility (Calls)	0.1731
Implied Volatility (Puts)	0.1941
Implied Volatility (Mean)	0.1836
Put-Call Implied Volatility Ratio	1.1215
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.6000