Westlake Corp
Westlake Corp (WLK) Options Open Interest
WLK options open interest is 3,408 contracts. The 2-week average daily volume is 98 contracts across the chain.
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Monitoring WLK open interest helps you see where real money is positioned on Westlake Corp's options and which strikes are attracting the most commitment from traders. Westlake Corp's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor WLK options open interest in real time and find the strikes that matter.
Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising WLK options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect Westlake Corp to settle.
Westlake Corporation manufactures and supplies petrochemicals, polymers, and building products worldwide. It operates through two segments, Performance and Essential Materials; and Housing and Infrastructure Products. The Performance and Essential Materials segment manufactures and markets polyethylene, styrene monomer, ethylene co-products, PVC, VCM, ethylene dichloride chlor-alkali, and chlorinated derivative products. The Housing and Infrastructure Products segment manufactures and sells residential PVC siding; PVC trim and moldings; roofing applications; decorative stone; windows; PVC decking; PVC films for various inflatables, wallcovering, tape, and roofing applications; polymer composite roof tiles; PVC pipe and fittings; PVC compounds; and various consumer and commercial products such as landscape edging; industrial, home and office matting; marine dock edging; and masonry joint controls.
The company offers its products to a range of customers, including chemical processors, plastics fabricators, small construction contractors, municipalities, and supply warehouses for use in various consumer and industrial markets, including residential construction, flexible and rigid packaging, automotive products, healthcare products, water treatment, and coatings, as well as other durable and non-durable goods. The company was formerly known as Westlake Chemical Corporation and changed its name to Westlake Corporation in February 2022. The company was founded in 1986 and is headquartered in Houston, Texas. Westlake Corporation is a subsidiary of TTWF LP.
Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where WLK open interest is concentrated. Our scanner maps Westlake Corp's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade Westlake Corp's options open interest as the signal it is, not as an afterthought.
| 85.00 | — | 1.00 | 1.00 | 86% | +0.1506 | 319 |
| 80.00 | 0.10 | 0.50 | 0.30 | 51% | +0.0835 | 232 |
| 65.00 | 2.60 | 4.30 | 3.45 | 37% | +0.6433 | 49 |
| 180.00 | — | 4.80 | 4.80 | 339% | +0.2159 | 42 |
| 90.00 | — | 1.15 | 1.15 | 104% | +0.1474 | 38 |
| 80.00 | 10.50 | 14.60 | 12.55 | 6% | -1.0000 | 40 |
| 65.00 | — | 1.85 | 1.85 | 42% | -0.3691 | 18 |
| 60.00 | 0.05 | 0.80 | 0.43 | 41% | -0.1243 | 17 |
| 70.00 | 3.90 | 4.60 | 4.25 | 36% | -0.6790 | 10 |
| 75.00 | 6.00 | 10.10 | 8.05 | 4% | -1.0000 | 9 |
As of September 24, 2026
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