Put-Call Ratio (Open Interest) (20-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

Enpro Inc. (NPO) had 20-Day Put-Call Ratio (Open Interest) of 20.8000 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3547
Historical Volatility (Parkinson)	0.3360
Implied Volatility (Calls)	0.4288
Implied Volatility (Puts)	0.4086
Implied Volatility (Mean)	0.4187
Put-Call Implied Volatility Ratio	0.9530
Implied Volatility Skew	0.0243
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	20.8000