Westlake (WLK) Operating Margin (2010 - 2026)
Westlake (WLK) posted quarterly Operating Margin of 6.49% for Q1 2026, down 536.0% year-over-year from 1.49% in Q1 2025, and up 75.52% quarter-over-quarter from 26.49% in Q4 2025.
Westlake (WLK) Operating Margin (2010 - 2026) Analysis & Trends
Westlake's Operating Margin history runs 17 years deep, the most recent figure standing at 6.49% for Q1 2026.
- In Q1 2026, Operating Margin fell 536.0% year-over-year to 6.49%; the TTM figure through Mar 2026 stood at 15.65% (down 2081.0% YoY), while the FY2025 annual figure was 14.13%, down 2133.0% from the prior year.
- Operating Margin for Q1 2026 stood at 6.49%, up from 26.49% in the prior quarter.
- The five-year high for Operating Margin was 26.21% in Q2 2022, with the low at 26.99% in Q3 2025.
- The 5-year median for Operating Margin is 7.5% (2024), against an average of 3.41%.
- The sharpest annual moves came in 2024 and 2025: Operating Margin soared 2185 bps in 2024, then slumped 3277 bps in 2025.
- Westlake's Operating Margin stood at 9.91% in 2022, then slumped by 297 bps to 19.53% in 2023, then jumped by 112 bps to 2.32% in 2024, then sank by 1241 bps to 26.49% in 2025, then soared by 76 bps to 6.49% in 2026.
- Business Quant data shows WLK's Operating Margin at 6.49% in Q1 2026, 26.49% in Q4 2025, and 26.99% in Q3 2025.
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Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Operating Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Linde | 226.58 Bn | 221.68 Bn | 4.43 Bn | 27.49% |
| 2 | Sherwin Williams | 84.59 Bn | 84.30 Bn | 3.34 Bn | 18.18% |
| 3 | Ecolab | 78.99 Bn | 73.85 Bn | 1.95 Bn | 17.16% |
| 4 | Air Products & Chemicals | 68.08 Bn | 67.10 Bn | 1.04 Bn | -66.34% |
| 5 | Ppg Industries | 25.35 Bn | 23.75 Bn | 1.81 Bn | 14.73% |
| 6 | Chemical & Mining Co Of Chile | 23.57 Bn | 19.70 Bn | 778.60 Mn | 47.01% |
| 7 | LyondellBasell Industries | 22.23 Bn | 19.60 Bn | 2.04 Bn | 16.81% |
| 8 | International Flavors & Fragrances | 21.59 Bn | 21.02 Bn | 853.00 Mn | 8.09% |
| 9 | DuPont de Nemours | 19.07 Bn | 17.33 Bn | 639.00 Mn | 18.03% |
| 10 | Westlake | 10.18 Bn | 8.33 Bn | 652.00 Mn | 11.13% |
Historic Data
Download Data| Date | Value |
|---|---|
| Jun 30, 2026 | 11.13% |
| Mar 31, 2026 | -6.49% |
| Dec 31, 2025 | -26.49% |
| Sep 30, 2025 | -26.99% |
| Jun 30, 2025 | -3.69% |
| Mar 31, 2025 | -1.12% |
| Dec 31, 2024 | 2.32% |
| Sep 30, 2024 | 5.77% |
| Jun 30, 2024 | 12.66% |
| Mar 31, 2024 | 7.50% |
| Dec 31, 2023 | -19.53% |
| Sep 30, 2023 | 11.20% |
| Jun 30, 2023 | 12.18% |
| Mar 31, 2023 | 15.97% |
| Dec 31, 2022 | 9.91% |
| Sep 30, 2022 | 13.04% |
| Jun 30, 2022 | 26.21% |
| Mar 31, 2022 | 25.44% |
| Dec 31, 2021 | 24.89% |
| Sep 30, 2021 | 28.18% |