Put-Call Ratio (Volume) (90-Day)

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

Knife River Corporation (KNF) 90-Day Put-Call Ratio (Volume) data is not available for 2026-07-21.

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Figures for 2026-07-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4913
Historical Volatility (Parkinson)	0.4176
Implied Volatility (Calls)	0.5023
Implied Volatility (Puts)	0.4829
Implied Volatility (Mean)	0.4926
Put-Call Implied Volatility Ratio	0.9612
Implied Volatility Skew	0.0230
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.1369