Put-Call Ratio (Volume) (120-Day)

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

Ecovyst Inc. (ECVT) had 120-Day Put-Call Ratio (Volume) of 0.0853 for 2026-04-17.

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Figures for 2026-04-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2910
Historical Volatility (Parkinson)	0.3401
Implied Volatility (Calls)	0.4978
Implied Volatility (Puts)	0.4527
Implied Volatility (Mean)	0.4753
Put-Call Implied Volatility Ratio	0.9094
Implied Volatility Skew	-0.0989
Option Statistics
Put-Call Ratio (Volume)	0.0853
Put-Call Ratio (Open Interest)	0.0019