West Pharmaceutical Servs (WST)'s 30-day implied volatility (IV30) was 47.1% at the close on October 23, 2026, against a 52-week range of 22.4% to 70.2%. Its 20-day historical volatility was 24.3%.
Key numbers
30-day implied volatility (IV30): 47.1%
IV30 52-week range: 22.4% to 70.2% (median 32.9%)
Historical volatility: 20-day 24.3%, 1-year 30.1%
Implied move by the nearest expiration: ±3.0%
Data as of October 23, 2026.
WST Implied Volatility (IV) vs Historical Volatility (HV)
The WST IV term structure shows the implied volatility difference between different maturity dates.
