Put-Call Ratio (Volume) (10-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 10-Day Put-Call Ratio (Volume) of 0.2715 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2566
Historical Volatility (Parkinson)	0.2637
Implied Volatility (Calls)	0.3686
Implied Volatility (Puts)	0.3747
Implied Volatility (Mean)	0.3717
Put-Call Implied Volatility Ratio	1.0166
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.2715
Put-Call Ratio (Open Interest)	0.5367