Put-Call Ratio (Open Interest) (30-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.

BOK Financial Corporation (BOKF) had 30-Day Put-Call Ratio (Open Interest) of 0.2667 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2288
Historical Volatility (Parkinson)	0.1965
Implied Volatility (Calls)	0.3117
Implied Volatility (Puts)	0.2721
Implied Volatility (Mean)	0.2919
Put-Call Implied Volatility Ratio	0.8730
Implied Volatility Skew	0.0953
Option Statistics
Put-Call Ratio (Volume)	0.0476
Put-Call Ratio (Open Interest)	0.2667