The financials
Westlake Corporation by the numbers
Westlake Corporation (WLK) reported revenue of $2.65B in Q1 2026 (quarter ended March 31, 2026), down 6.8% from the same quarter a year earlier. That came with a gross margin of 4.2% and net loss of $169M. For the full year FY2025, revenue was $11.2B (−8.0% year on year) and net income −$1.51B. Its largest product in 2026-Q1 was Performance Materials at $1.00B, 38% of the disclosed total, just ahead of Housing Products at 30%.
| Income statement | Q1 2026 | Q1 2025 | Change |
|---|---|---|---|
| Revenue | $2.65B | $2.85B | −6.8% |
| Gross profit | $112M | $232M | −52% |
| Operating income | −$172M | −$32M | n/a |
| Net income | −$169M | −$40M | n/a |
| Diluted EPS | −$1.31 | −$0.31 | n/a |
| Product | Revenue | Share |
|---|---|---|
| Performance Materials | $1.00B | 38% |
| Housing Products | $788M | 30% |
| Essential Materials | $656M | 25% |
| Infrastructure Products | $205M | 7.7% |
Business Segments
Revenue split by product segment, from SEC XBRL filings.
Latest period: Q1 2026Total $2.65B (-6.6%)
Infrastructure Products grew +30% year on yearEssential Materials -17% year on year
Segment Latestquarter on quarteryear on year
- Performance Materials$1.00B$1.00BQoQ -0.69%year on year -5.0%-0.69%-5.0%
- Housing Products$788.0M$788.0MQoQ -15%year on year -6.0%-15%-6.0%
- Essential Materials$656.0M$656.0MQoQ -11%year on year -17%-11%-17%
- Infrastructure Products$205.0M$205.0MQoQ +26%year on year +30%+26%+30%