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.

Repligen Corporation (RGEN) had 10-Day Put-Call Ratio (Volume) of 10.7273 for 2026-10-20.

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Figures for 2026-10-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4177
Historical Volatility (Parkinson)	0.4206
Implied Volatility (Calls)	0.6354
Implied Volatility (Puts)	0.6320
Implied Volatility (Mean)	0.6337
Put-Call Implied Volatility Ratio	0.9946
Implied Volatility Skew	0.0303
Option Statistics
Put-Call Ratio (Volume)	10.7273
Put-Call Ratio (Open Interest)	2.7587