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NYSE: WLK WESTLAKE CORP 10-Q

Westlake swings to $260.0M profit on 10.8% revenue growth, adds Wilhelmshaven and ACI

Filed August 5, 2026 · Period ending June 30, 2026 · Compared to 10-Q Aug 6, 2025 · ~1 min read

Key Changes

  • high

    Net income reached $260.0M ($2.01 diluted EPS) vs. a loss a year ago, as revenue rose 10.8% to $3.27B.

    MD&A: Results verify on EDGAR →
  • high

    Operating income swung from -$109M to +$364M, driven by higher prices and volumes, plus contributions from the Wilhelmshaven and ACI acquisitions.

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

    New EPA Clean Air Act settlement proposal could result in a civil penalty exceeding $1M; prior Natrium discharge investigation no longer disclosed.

    Legal Proceedings verify on EDGAR →

2 more material changes behind this preview — plus the full narrative summary, section-by-section diffs against the prior filing, and verbatim quotes with EDGAR citations.

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Figures/quotes linked to EDGAR · Narrative written by AI · Sep 1, 2026 · How we verify