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.

Pfizer Inc. (PFE) had 20-Day Put-Call Ratio (Open Interest) of 0.7786 for 2025-06-27.

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Figures for 2025-06-27

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1836
Historical Volatility (Parkinson)	0.1548
Implied Volatility (Calls)	0.1911
Implied Volatility (Puts)	0.1940
Implied Volatility (Mean)	0.1925
Put-Call Implied Volatility Ratio	1.0149
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.1643
Put-Call Ratio (Open Interest)	0.7786