Westlake (WLK) Operating Expenses (2010 - 2026)

Westlake's Operating Expenses history runs 17 years deep, the most recent figure standing at $254.0 million for Q1 2026.

• On a quarterly basis, Operating Expenses rose 8.55% year-over-year to $254.0 million in Q1 2026; TTM through Mar 2026 was $943.0 million, a 4.36% decrease from a year earlier, with the FY2025 full-year figure at $915.0 million, down 5.18% from the prior year.
• Operating Expenses rose to $254.0 million in Q1 2026 per WLK's latest filing, from $100.0 million in the prior quarter.
• Across five years, Operating Expenses topped out at $344.0 million in Q2 2025 and bottomed at $100.0 million in Q4 2025.
• The 5-year median for Operating Expenses is $227.0 million (2022), against an average of $229.6 million.
• Across the five-year window, Operating Expenses jumped 81.6% in 2022 and tumbled 57.26% in 2025, its largest moves.
• Year by year, Operating Expenses stood at $209.0 million in 2022, then rose by 17.7% to $246.0 million in 2023, then fell by 4.88% to $234.0 million in 2024, then tumbled by 57.26% to $100.0 million in 2025, then soared by 154.0% to $254.0 million in 2026.
• Per Business Quant, the three latest WLK Operating Expenses figures stand at $254.0 million (Q1 2026), $100.0 million (Q4 2025), and $245.0 million (Q3 2025).