Westlake (WLK) Return on Capital Employed (2011 - 2026)

Westlake's Return on Capital Employed history runs 16 years deep, the most recent figure standing at 10.05% for Q1 2026.

• In Q1 2026, Return on Capital Employed fell 1341.0% year-over-year to 10.05%; the TTM figure through Mar 2026 stood at 10.05% (down 1341.0% YoY), while the FY2025 annual figure was 8.97%, down 1366.0% from the prior year.
• Return on Capital Employed was 10.05% for Q1 2026 at Westlake, down from 9.22% in the prior quarter.
• In the past five years, Return on Capital Employed ranged from a high of 22.46% in Q2 2022 to a low of 10.05% in Q1 2026.
• Historically, Return on Capital Employed has averaged 6.28% across 5 years, with a median of 3.96% in 2023.
• The sharpest annual moves came in 2022 and 2025: Return on Capital Employed jumped 1600 bps in 2022, then tumbled 1390 bps in 2025.
• A 5-year view of Return on Capital Employed shows it stood at 16.77% in 2022, then tumbled by 76 bps to 3.96% in 2023, then grew by 18 bps to 4.68% in 2024, then plunged by 297 bps to 9.22% in 2025, then declined by 9 bps to 10.05% in 2026.
• The last three Return on Capital Employed figures came in at 10.05% (Q1 2026), 9.22% (Q4 2025), and 4.83% (Q3 2025), per Business Quant data.