Westlake (WLK) Operating Margin (2010 - 2026)
Westlake (WLK) posted Operating Margin of 11.13% for Q2 2026, up 271.58% on a QoQ basis from 6.49% in Q1 2026, and up 1482.0% year-over-year from 0.7% in Q2 2025.
Powered by 
Analysis
Westlake (WLK) Operating Margin (2010 - 2026) Analysis & Trends
Westlake has reported Operating Margin for 17 years, with the latest figure at 11.13% in Q2 2026.
- On a quarterly basis, Operating Margin rose 1482.0% year-over-year to 11.13% in Q2 2026; TTM through Jun 2026 was 11.02%, a 1192.0% decrease from a year earlier, with the FY2025 full-year figure at 14.13%, down 2133.0% from the prior year.
- Operating Margin was 11.13% for Q2 2026 at Westlake, up from 6.49% 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.
- Average Operating Margin over 5 years is 3.84%, with a median of 8.7% recorded in 2022.
- The sharpest annual moves came in 2024 and 2025: Operating Margin surged 2185 bps in 2024, then slumped 3277 bps in 2025.
- Over 5 years, Operating Margin stood at 9.91% in 2022, then slumped by 297 bps to 19.53% in 2023, then soared by 112 bps to 2.32% in 2024, then sank by 1241 bps to 26.49% in 2025, then jumped by 142 bps to 11.13% in 2026.
- The last three Operating Margin figures came in at 11.13% (Q2 2026), 6.49% (Q1 2026), and 26.49% (Q4 2025), per Business Quant data.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Operating Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | LyondellBasell Industries | 41.68 Bn | 39.05 Bn | 2.04 Bn | 16.81% |
| 2 | Westlake | 9.11 Bn | 7.26 Bn | 652.00 Mn | 11.13% |
| 3 | Celanese | 5.05 Bn | 3.69 Bn | 618.00 Mn | 10.03% |
| 4 | Methanex | 4.54 Bn | 4.16 Bn | 638.01 Mn | 35.25% |
| 5 | Chemours | 2.28 Bn | 1.61 Bn | 286.00 Mn | -13.39% |
| 6 | Olin | 1.95 Bn | 1.77 Bn | 170.20 Mn | 2.67% |
| 7 | Sino Green Land | 1.85 Bn | 1.85 Bn | -78,936.00 | -83.62% |
| 8 | Braskem | 1.69 Bn | -509.49 Mn | - | - |
| 9 | Ecovyst | 1.10 Bn | 1.01 Bn | 49.85 Mn | 7.75% |
| 10 | Kronos Worldwide | 939.22 Mn | 912.62 Mn | 102.80 Mn | 6.74% |
Historic Data
Download Data
Historic 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% |