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.

• On a quarterly basis, Return on Capital Employed fell 1341.0% year-over-year to 10.05% in Q1 2026; TTM through Mar 2026 was 10.05%, a 1341.0% decrease from a year earlier, with the FY2025 full-year figure at 8.97%, down 1366.0% from the prior year.
• Return on Capital Employed declined to 10.05% in Q1 2026 per WLK's latest filing, from 9.22% in the prior quarter.
• Across five years, Return on Capital Employed topped out at 22.46% in Q2 2022 and bottomed at 10.05% in Q1 2026.
• The 5-year median for Return on Capital Employed is 3.96% (2023), against an average of 6.28%.
• Across the five-year window, Return on Capital Employed soared 1600 bps in 2022 and tumbled 1390 bps in 2025, its largest moves.
• Year by year, Return on Capital Employed stood at 16.77% in 2022, then sank by 76 bps to 3.96% in 2023, then grew by 18 bps to 4.68% in 2024, then slumped by 297 bps to 9.22% in 2025, then declined by 9 bps to 10.05% in 2026.
• Per Business Quant, the three latest WLK Return on Capital Employed figures stand at 10.05% (Q1 2026), 9.22% (Q4 2025), and 4.83% (Q3 2025).