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Westlake WLK Business Segments

Q2 '26Q1 '26Q4 '25Q3 '25Q2 '25
Revenue by Business
Housing and Infrastructure Products Segment$1.25B+7.9%$993M-0.3%$901M-8.2%$1.09B-0.6%$1.16B-2.8%
Performance and Essential Materials Segment$2.02B+12.6%$1.66B-10.3%$1.63B-12.4%$1.75B-13.5%$1.79B-10.9%
Revenue by Product
Essential Materials$783M+1.6%$656M-17.4%$702M-5.3%$737M-13.8%$771M-7.8%
Housing Products$1.01B+3.2%$788M-6.0%$767M-6.2%$928M-1.0%$980M-3.0%
Infrastructure Products$241M+33.9%$205M+29.7%$134M-17.8%$163M+1.2%$180M-2.2%
Performance Materials$1.24B+20.9%$1B-5.0%$930M-17.0%$1.01B-13.2%$1.02B-13.2%

FAQ

How does Westlake break its business down?
Westlake (WLK) reports revenue by business across 2 parts — Housing and Infrastructure Products Segment and Performance and Essential Materials Segment. Each is extracted from the segment footnotes and tracked over time.
Where does Westlake's segment data come from?
Segment breakdowns are pulled from the segment footnotes in Westlake's SEC filings (the XBRL dimensional tags), so every line ties back to a reported figure. Switch between quarterly, annual, and TTM, or open any segment for its full history.