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 0.0167 for 2026-06-01.

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Figures for 2026-06-01

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3023
Historical Volatility (Parkinson)	0.2925
Implied Volatility (Calls)	0.2872
Implied Volatility (Puts)	0.4019
Implied Volatility (Mean)	0.3445
Put-Call Implied Volatility Ratio	1.3994
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0167
Put-Call Ratio (Open Interest)	0.9433