Showing results for WLK, 2026-11-20(m), calls & puts
WLK 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 WLK option contracts are listed?
As of Nov 4, 2026, Westlake Corporation (WLK) had 200 listed option contracts across 5 expiration dates, from Nov 20, 2026 to Dec 17, 2027.
When do WLK options expire?
Westlake had 5 expiration dates as of Nov 4, 2026, 0 of them weekly. The nearest was Nov 20, 2026 and the furthest Dec 17, 2027.
How actively are WLK options traded?
285 Westlake option contracts traded on Nov 4, 2026, and open interest was 4.69K contracts. Over the past 30 days, volume averaged 157 contracts per day. The WLK option volume chart shows volume by strike and expiration date.
Is WLK implied volatility high right now?
Westlake IV rank is 5, so its 30-day implied volatility of 39.5% is near the bottom of its one-year range. Over the past year it ranged from 32.3% on Oct 1, 2026 to 189.5% on Jul 17, 2026. See the WLK implied volatility history for a longer view.
What is Westlake Corporation?
Westlake is a forward-integrated commodity chemicals firm based in Houston.