Put-Call Ratio (Volume) (30-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Regeneron Pharmaceuticals, Inc. (REGN) had 30-Day Put-Call Ratio (Volume) of 1.2370 for 2026-05-22.

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Figures for 2026-05-22

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4809
Historical Volatility (Parkinson)	0.2757
Implied Volatility (Calls)	0.3144
Implied Volatility (Puts)	0.3159
Implied Volatility (Mean)	0.3151
Put-Call Implied Volatility Ratio	1.0048
Implied Volatility Skew	0.0165
Option Statistics
Put-Call Ratio (Volume)	1.2370
Put-Call Ratio (Open Interest)	2.0446