Westlake (WLK) Cost of Revenue (2010 - 2026)

Westlake's Cost of Revenue history runs 17 years deep, the most recent figure standing at $2.5 billion for Q1 2026.

• On a quarterly basis, Cost of Revenue fell 2.83% year-over-year to $2.5 billion in Q1 2026; TTM through Mar 2026 was $10.3 billion, a 0.07% change from a year earlier, with the FY2025 full-year figure at $10.4 billion, up 1.69% from the prior year.
• Cost of Revenue advanced to $2.5 billion in Q1 2026 per WLK's latest filing, from $2.4 billion in the prior quarter.
• Across five years, Cost of Revenue topped out at $3.2 billion in Q3 2022 and bottomed at $2.4 billion in Q4 2025.
• The 5-year median for Cost of Revenue is $2.6 billion (2023), against an average of $2.7 billion.
• Across the five-year window, Cost of Revenue soared 56.11% in 2022 and retreated 20.47% in 2023, its largest moves.
• Year by year, Cost of Revenue stood at $2.7 billion in 2022, then slipped by 3.84% to $2.6 billion in 2023, then dropped by 4.26% to $2.5 billion in 2024, then fell by 2.74% to $2.4 billion in 2025, then climbed by 3.84% to $2.5 billion in 2026.
• Per Business Quant, the three latest WLK Cost of Revenue figures stand at $2.5 billion (Q1 2026), $2.4 billion (Q4 2025), and $2.6 billion (Q3 2025).