Westlake Chemical Partners (WLKP) Options Chain
NYSE: WLKPIndustrialsMajor ChemicalsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $21.19
- Put/call ratio (OI)
- 0.13
- Put/call ratio (volume)
- 0.16
- Expected move
- ±$4.89
- Open interest (C / P)
- 289 / 38
WLKP options summary
The WLKP options chain for the November 20, 2026 expiration lists 4 call and 3 put contracts, with 40 days until expiration. Open interest stands at 289 calls and 38 puts, a put/call ratio of 0.13, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $20.00 strike is 69.8%, which implies the market expects a move of about ±$4.89 (23.1%) in Westlake Chemical Partners stock by expiration.
The most open interest sits at the $25.00 call (145 contracts) and the $20.00 put (29 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
WLKP options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 17.50 | 0.00 | 0.00 | 0.35 | |||||
| 1.90 | 0.20 | 5.00 | 20.00 | 0.00 | 1.35 | 0.65 | |||||
| 0.39 | 0.05 | 0.55 | 22.50 | 0.05 | 4.80 | 1.85 | |||||
| 0.47 | 0.00 | 0.20 | 25.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.30 | 30.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the WLKP put/call ratio?
For the November 20, 2026 expiration, the WLKP put/call ratio based on open interest is 0.13 (38 puts vs 289 calls), and 0.16 based on today's volume. A ratio above 1 means more puts than calls.
What is WLKP's implied volatility?
At-the-money implied volatility for WLKP options expiring November 20, 2026 is about 69.8%, an annualized estimate of how much the market expects Westlake Chemical Partners stock to move.
How many WLKP option expiration dates are there?
WLKP has 4 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.