Westlake Corporation
corporate_fare Company Profile
Westlake Corporation (NYSE:WLK) is a publicly traded company in the Manufacturing sector. Wiseek has independently scored 21 items for WLK at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-09-29, rated 8/10. Across its 20 most recent items scored 7 or higher, the top rating is 9/10, with 10 rated 8 or above. Recent SEC coverage for WLK spans 8-K, 10-Q, DEF 14A, 10-K.
Recent high-impact activity:
- Westlake to Close Cologne PVC Plant, Takes $205M Charge and Warns Q3 Profit Will Fall
- Westlake Warns Q3 Results Will Fall Below Q2's Strong Performance
- Westlake Swings to $260M Q2 Profit on Higher Prices, Lower Costs; Legal Wins Bolster Outlook
- Westlake Swings to $260M Profit in Q2 as PEM Margins Surge on Higher Prices
- Amsterdam Court Dismisses €1B+ Antitrust Claims Against Westlake
Financial Snapshot
Short Interest & Short Volume
7.42 days to coverFINRA reported short interest of 5,309,547 shares in WLK as of the September 15, 2026 settlement, a 6.5% decrease from the prior period — about 7.4 days to cover at its recent average daily volume. On October 2, 2026, 60.2% of WLK volume reported to FINRA trade-reporting facilities was marked short.
Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.