Put-Call Ratio (Volume) (30-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 30-Day Put-Call Ratio (Volume) of 1.5769 for 2025-05-30.

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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3249
Historical Volatility (Parkinson)	0.2675
Implied Volatility (Calls)	0.3483
Implied Volatility (Puts)	0.3455
Implied Volatility (Mean)	0.3469
Put-Call Implied Volatility Ratio	0.9918
Implied Volatility Skew	0.0685
Option Statistics
Put-Call Ratio (Volume)	1.5769
Put-Call Ratio (Open Interest)	0.3449