Put-Call Ratio (Open Interest) (180-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.

First Interstate BancSystem, Inc. (FIBK) had 180-Day Put-Call Ratio (Open Interest) of 0.0589 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2900
Historical Volatility (Parkinson)	0.2619
Implied Volatility (Calls)	0.3310
Implied Volatility (Puts)	0.2970
Implied Volatility (Mean)	0.3140
Put-Call Implied Volatility Ratio	0.8974
Implied Volatility Skew	0.0889
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0589