Put-Call Ratio (Volume) (20-Day)

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

Vanguard Small-Cap Growth ETF (VBK) had 20-Day Put-Call Ratio (Volume) of 0.3784 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1425
Historical Volatility (Parkinson)	0.1128
Implied Volatility (Calls)	0.1876
Implied Volatility (Puts)	0.1923
Implied Volatility (Mean)	0.1899
Put-Call Implied Volatility Ratio	1.0251
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.3784
Put-Call Ratio (Open Interest)	0.1515