Put-Call Ratio (Volume) (180-Day)

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

Vanguard Morningstar Mid-Cap ETF (VO) had 180-Day Put-Call Ratio (Volume) of 0.0000 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1113
Historical Volatility (Parkinson)	0.0990
Implied Volatility (Calls)	0.1634
Implied Volatility (Puts)	0.1522
Implied Volatility (Mean)	0.1578
Put-Call Implied Volatility Ratio	0.9312
Implied Volatility Skew	0.0434
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.3449