NYSE:WLK
Westlake Corp.
Westlake Corp.'s revenue fell 8.0% in fiscal 2025 to $11.2B while operating margin fell to −14.1%, its lowest in 10 years. Free cash flow was −$530.0M, −4.7% of revenue, and the diluted share count fell 0.7%.Summary generated from Westlake Corp.'s SEC filings. Latest annual report filed Feb 26, 2026.
Key statistics
Fiscal 2025 from SEC filings. MethodologyRevenue (FY25)$11.2B
Revenue growth−8.0%
Revenue, 5-yr CAGR+8.3%
Gross margin7.3%
Operating margin−14.1%
Net margin−13.5%
ROIC−10.5%
Return on equity−15.6%
Debt / equity0.64
Free cash flow−$530.0M
FCF margin−4.7%
Share count change−0.7%
Financials
| Item | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | 11.8 | 15.8 | 12.5 | 12.1 | 11.2 |
| Operating income | 2.8 | 3.0 | 0.7 | 0.9 | −1.6 |
| Net income | 2.0 | 2.2 | 0.5 | 0.6 | −1.5 |
| Free cash flow | 1.7 | 2.3 | 1.3 | 0.3 | −0.5 |
Recent filings
- 8-KCosts of exit or disposal activities
Sep 29, 2026 - 4Insider transaction report
Sep 1, 2026 - 8-KDirector or officer change
Aug 31, 2026 - 4Insider transaction report
Aug 17, 2026 - 10-QQuarterly report for the period ended Jun 30, 2026
Aug 5, 2026 - 8-KResults of operations and financial condition
Aug 4, 2026 - 8-KOther events
Jul 29, 2026 - 8-KRegulation FD disclosure
Jun 15, 2026