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.

Columbia Banking System, Inc. (COLB) had 10-Day Put-Call Ratio (Volume) of 2.0000 for 2026-09-04.

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Figures for 2026-09-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2538
Historical Volatility (Parkinson)	0.2088
Implied Volatility (Calls)	0.3016
Implied Volatility (Puts)	0.3175
Implied Volatility (Mean)	0.3095
Put-Call Implied Volatility Ratio	1.0527
Implied Volatility Skew	-0.0329
Option Statistics
Put-Call Ratio (Volume)	2.0000
Put-Call Ratio (Open Interest)	0.8000