Showing results for WST, 2026-11-20(m), calls & puts
WST Option Chain FAQ
What is an option chain?
An option chain lists every call and put for a stock, with prices, volume, open interest, and Greeks for each strike and expiration date.
How many WST option contracts are listed?
As of Nov 4, 2026, West Pharmaceutical Services Inc (WST) had 586 listed option contracts across 7 expiration dates, from Nov 20, 2026 to Dec 17, 2027.
When do WST options expire?
West Pharmaceutical Services had 7 expiration dates as of Nov 4, 2026, 1 of them weekly. The nearest was Nov 20, 2026 and the furthest Dec 17, 2027.
How actively are WST options traded?
796 West Pharmaceutical Services option contracts traded on Nov 4, 2026, and open interest was 6.4K contracts. Over the past 30 days, volume averaged 314 contracts per day. The WST option volume chart shows volume by strike and expiration date.
Is WST implied volatility high right now?
West Pharmaceutical Services IV rank is 3, so its 30-day implied volatility of 25.8% is near the bottom of its one-year range. Over the past year it ranged from 22.8% on Sep 18, 2026 to 139.6% on May 15, 2026. See the WST implied volatility history for a longer view.
What is West Pharmaceutical Services Inc?
West Pharmaceutical Services is based in Pennsylvania and is a key supplier to firms in the pharmaceutical, biotechnology, and generic drug industries.