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.

West Pharmaceutical Services, Inc. (WST) had 120-Day Put-Call Ratio (Volume) of 0.7857 for 2026-10-14.

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Figures for 2026-10-14

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2441
Historical Volatility (Parkinson)	0.2516
Implied Volatility (Calls)	0.3439
Implied Volatility (Puts)	0.3449
Implied Volatility (Mean)	0.3444
Put-Call Implied Volatility Ratio	1.0029
Implied Volatility Skew	0.0113
Option Statistics
Put-Call Ratio (Volume)	0.7857
Put-Call Ratio (Open Interest)	0.6320