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 Mid-Cap ETF (VO) had 30-Day Put-Call Ratio (Volume) of 0.5000 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0967
Historical Volatility (Parkinson)	0.0816
Implied Volatility (Calls)	0.1429
Implied Volatility (Puts)	0.1106
Implied Volatility (Mean)	0.1268
Put-Call Implied Volatility Ratio	0.7743
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.5000
Put-Call Ratio (Open Interest)	0.5143