Put-Call Ratio (Open Interest) (20-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.

Kinder Morgan, Inc. (KMI) had 20-Day Put-Call Ratio (Open Interest) of 0.4577 for 2026-09-01.

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Figures for 2026-09-01

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2863
Historical Volatility (Parkinson)	0.2639
Implied Volatility (Calls)	0.2339
Implied Volatility (Puts)	0.2329
Implied Volatility (Mean)	0.2334
Put-Call Implied Volatility Ratio	0.9959
Implied Volatility Skew	0.0188
Option Statistics
Put-Call Ratio (Volume)	0.1466
Put-Call Ratio (Open Interest)	0.4577