Stocks Industrials WLK
NYSE · IndustrialsWestlake Corp (WLK)
Westlake Corp brought in $11.4B of revenue over the twelve months to September 30, 2026, down 0.4% from a year earlier. It posted a net loss of $447M. In fiscal 2025 capital spending exceeded operating cash flow by $530M. At September 30, 2026 it held $1.8B in cash against $5.1B of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 4, 2026.
Key facts about Westlake Corp
- Net worth
- Westlake Corp has a market value (market cap) of $8.1B at the latest share price, and shareholders' equity of $8.7B on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
- Revenue and profit
- In fiscal 2025 revenue was $11.2B (-8.0% year on year), with a net loss of $1.5B. Over the 12 months to September 30, 2026: revenue $11.4B, net loss $447M.
- Cash flow
- In fiscal 2025 operations brought in $465M of cash; after $995M of capital spending, free cash flow was -$530M.
- Latest report
- The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 4, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
- Next earnings report
- Westlake Corp's next report is expected around February 23, 2027. That is an estimate from its filing rhythm, not a date the company has announced.
- Dividend
- Westlake Corp declared dividends of $2.11 per share in fiscal 2025, a yield of 3.34% at the current price.
What Westlake Corp does
Westlake Corp is registered with the SEC under industry code SIC 2860 (Industrial Organic Chemicals). Its shares trade on NYSE under the ticker WLK.
Revenue and profit by year
Key figures
| Fiscal year | Revenue | Net income | Diluted EPS | Free cash flow |
|---|---|---|---|---|
| 2025 | $11.2B | -$1.5B | -$11.70 | -$530M |
| 2024 | $12.1B | $602M | $4.64 | $306M |
| 2023 | $12.5B | $479M | $3.70 | $1.3B |
| 2022 | $15.8B | $2.2B | $17.34 | $2.3B |
| 2021 | $11.8B | $2B | $15.58 | $1.7B |
| 2020 | $7.5B | $330M | $2.56 | $772M |
Earnings: every quarter and the next report date
Full financial statements: income, balance sheet and cash flow
Where WLK ranks in Industrials
Dividends
Westlake Corp declared $2.11 per share in fiscal 2025. At the current price that is a yield of 3.34%. It paid out $272M in cash dividends.
| Fiscal year | Per share | Paid out | Of profit |
|---|---|---|---|
| 2025 | $2.11 | $272M | n/a |
| 2024 | $2.05 | $264M | 44% |
| 2023 | $1.71 | $221M | 46% |
| 2022 | $1.31 | $169M | 8% |
| 2021 | $1.14 | $145M | 7% |
| 2020 | $1.07 | $137M | 42% |
Latest SEC filings
What Westlake Corp has filed recently, newest first. Each links to the original document on SEC EDGAR.
- November 4, 2026Quarterly report 10-Q · period to September 30, 2026Revenue rose 5% to $3B versus the same quarter last year; diluted EPS $0.05 versus -$6.06.
- November 4, 2026
- September 29, 2026Restructuring or layoffs8-KWestlake plans to close its Cologne PVC plant and expects sequentially lower third-quarter financial results.
- August 31, 2026
- August 5, 2026Quarterly report 10-Q · period to June 30, 2026Revenue rose 11% to $3.3B versus the same quarter last year; diluted EPS $2.01 versus -$1.11.
- August 4, 2026
- July 29, 2026Other event 8-K
- June 15, 2026
- May 18, 2026
- May 18, 2026
Insider trades
What the people running Westlake Corp did with its shares, from the Form 4 filings they must send the SEC within two business days.
No insider trades were reported in the last 90 days.
| Date | Insider | What | Shares | Value |
|---|---|---|---|---|
| August 11, 2026 | Chao AlbertExecutive Chairman, Director | Exercised options | 38,873 | $2.4M |
| August 11, 2026 | Chao AlbertExecutive Chairman, Director | Sold | 7,489 | $596.9K |
| August 11, 2026 | Chao AlbertExecutive Chairman, Director | Sold | 31,384 | $2.5M |
| August 8, 2026 | Chao Catherine T.Director | Exercised options | 2,168 | - |
| August 8, 2026 | Chao David Tsung-HungDirector | Exercised options | 2,168 | - |
| August 8, 2026 | Cregg Roger ADirector | Exercised options | 2,168 | - |
| August 8, 2026 | Graff Michael JDirector | Exercised options | 2,168 | - |
| August 8, 2026 | Lubel Kimberly SDirector | Exercised options | 2,168 | - |
Who owns WLK
Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.
5% holders
Largest institutional holders
Insiders
17 insiders reported holding 985,290 shares in total, about $62.2M at the last price.
| Holder | Shares |
|---|---|
| Chao AlbertExecutive Chairman, Director | 642,880 |
| Ederington L. BenjaminEVP, Legal & External Affairs | 80,158 |
| Chao JamesSenior Chairman, Director | 49,774 |
| Bender Mark StevenEVP & CFO | 35,895 |
| Buesinger Robert F.EVP, PEM Segment Head | 34,482 |
| Northcutt R BruceDirector | 23,351 |
| Graff Michael JDirector | 23,310 |
| Sheets Jeffrey WayneDirector | 14,927 |
| Lubel Kimberly SDirector | 13,821 |
| Szwejbka Scott ThomasSVP, HIP Segment Head | 13,773 |
Questions about WLK
What does Westlake Corp do?
Westlake Corp is a company in the Industrials sector, listed on NYSE as WLK. Its shares trade on NYSE under the ticker WLK.
What is Westlake Corp's net worth?
Westlake Corp has a market value (market cap) of $8.1B at the latest share price, and shareholders' equity of $8.7B on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Is Westlake Corp profitable?
No. Over the twelve months to September 30, 2026 it reported a net loss of $447M on revenue of $11.4B.
How much revenue does Westlake Corp make?
Over the twelve months to September 30, 2026 Westlake Corp reported revenue of $11.4B. That is 0.4% less than a year earlier.
When did Westlake Corp last report?
Its most recent periodic report is the quarterly report (10-Q) filed on November 4, 2026. It covers the period to September 30, 2026.
When is Westlake Corp's next earnings report?
Westlake Corp's next report is expected around February 23, 2027. That is an estimate from its filing rhythm, not a date the company has announced.
Does Westlake Corp pay a dividend?
Yes. Westlake Corp declared dividends of $2.11 per share in fiscal 2025, a yield of 3.34% at the current price.
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Where the numbers come from
Financial figures are the values Westlake Corp tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.
Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.