Put-Call Ratio (Volume) (150-Day)

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

Collegium Pharmaceutical, Inc. (COLL) had 150-Day Put-Call Ratio (Volume) of 0.3091 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3734
Historical Volatility (Parkinson)	0.3732
Implied Volatility (Calls)	0.4810
Implied Volatility (Puts)	0.4683
Implied Volatility (Mean)	0.4747
Put-Call Implied Volatility Ratio	0.9735
Implied Volatility Skew	0.0384
Option Statistics
Put-Call Ratio (Volume)	0.3091
Put-Call Ratio (Open Interest)	4.3551