Westlake Q1 loss deepens to $169M on weak demand, $67M antitrust settlement, Middle East risk

Filed May 6, 2026 · Period ending March 31, 2026 · Compared to 10-Q May 2, 2025 · ~2 min read

Key Changes

• high

  Net loss widened from $40M to $169M year-over-year as PEM segment losses deepened to $211M and HIP segment income fell 62% to $56M, driven by lower volumes and prices across PVC, polyethylene, and building products.

  MD&A: Segment Results verify on EDGAR →
• high

  Company agreed to pay $67M to settle direct purchaser claims in PVC pipe antitrust litigation, with preliminary court approval received in April 2026; charge recognized in Q1 results.

  MD&A: Legal Settlement verify on EDGAR →
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  New Middle East conflict involving U.S., Israel, and Iran (began February 2026) creates volatility in global energy and petrochemical markets; Westlake's North American operations less exposed but may face higher feedstock and logistics costs.

  MD&A: Geopolitical Risk verify on EDGAR →