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.

• In Q1 2026, Cost of Revenue fell 2.83% year-over-year to $2.5 billion; the TTM figure through Mar 2026 stood at $10.3 billion (changed 0.07% YoY), while the FY2025 annual figure was $10.4 billion, up 1.69% from the prior year.
• Cost of Revenue was $2.5 billion for Q1 2026 at Westlake, up from $2.4 billion in the prior quarter.
• In the past five years, Cost of Revenue ranged from a high of $3.2 billion in Q3 2022 to a low of $2.4 billion in Q4 2025.
• Historically, Cost of Revenue has averaged $2.7 billion across 5 years, with a median of $2.6 billion in 2023.
• The sharpest annual moves came in 2022 and 2023: Cost of Revenue jumped 56.11% in 2022, then declined 20.47% in 2023.
• A 5-year view of Cost of Revenue shows it 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.
• The last three Cost of Revenue figures came in at $2.5 billion (Q1 2026), $2.4 billion (Q4 2025), and $2.6 billion (Q3 2025), per Business Quant data.