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.

3M Company (MMM) had 20-Day Put-Call Ratio (Open Interest) of 1.2465 for 2025-07-15.

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Figures for 2025-07-15

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1583
Historical Volatility (Parkinson)	0.2033
Implied Volatility (Calls)	0.3642
Implied Volatility (Puts)	0.3715
Implied Volatility (Mean)	0.3678
Put-Call Implied Volatility Ratio	1.0200
Implied Volatility Skew	0.0628
Option Statistics
Put-Call Ratio (Volume)	0.5602
Put-Call Ratio (Open Interest)	1.2465