Put-Call Ratio (Volume) (10-Day)

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

NPK International Inc. (NPKI) had 10-Day Put-Call Ratio (Volume) of 66.6667 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3336
Historical Volatility (Parkinson)	0.3094
Implied Volatility (Calls)	0.7016
Implied Volatility (Puts)	0.6339
Implied Volatility (Mean)	0.6677
Put-Call Implied Volatility Ratio	0.9035
Implied Volatility Skew	-0.0237
Option Statistics
Put-Call Ratio (Volume)	66.6667
Put-Call Ratio (Open Interest)	--