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.

Enpro Inc. (NPO) 30-Day Put-Call Ratio (Volume) data is not available for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4283
Historical Volatility (Parkinson)	0.3578
Implied Volatility (Calls)	0.4978
Implied Volatility (Puts)	0.5151
Implied Volatility (Mean)	0.5065
Put-Call Implied Volatility Ratio	1.0348
Implied Volatility Skew	0.0789
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	40.7816