Westlake (WLK) Gross Margin (2010 - 2026)

Westlake's Gross Margin history runs 17 years deep, the most recent figure standing at 4.22% for Q1 2026.

• In Q1 2026, Gross Margin fell 393.0% year-over-year to 4.22%; the TTM figure through Mar 2026 stood at 6.31% (down 803.0% YoY), while the FY2025 annual figure was 7.28%, down 884.0% from the prior year.
• Gross Margin was 4.22% for Q1 2026 at Westlake, up from 3.43% in the prior quarter.
• In the past five years, Gross Margin ranged from a high of 32.23% in Q2 2022 to a low of 3.43% in Q4 2025.
• Historically, Gross Margin has averaged 15.69% across 5 years, with a median of 16.01% in 2024.
• Biggest YoY gain for Gross Margin was 1009 bps in 2022; the steepest drop was 1406 bps in 2022.
• A 5-year view of Gross Margin shows it stood at 17.19% in 2022, then plunged by 59 bps to 7.04% in 2023, then surged by 64 bps to 11.54% in 2024, then sank by 70 bps to 3.43% in 2025, then rose by 23 bps to 4.22% in 2026.
• The last three Gross Margin figures came in at 4.22% (Q1 2026), 3.43% (Q4 2025), and 8.32% (Q3 2025), per Business Quant data.