Westlake (WLK) Change in Inventory (2010 - 2026)

Westlake's Change in Inventory history runs 17 years deep, the most recent figure standing at $8.0 million for Q1 2026.

• In Q1 2026, Change in Inventory fell 89.19% year-over-year to $8.0 million; the TTM figure through Mar 2026 stood at -$117.0 million (down 194.35% YoY), while the FY2025 annual figure was -$51.0 million, down 152.58% from the prior year.
• Change in Inventory was $8.0 million for Q1 2026 at Westlake, up from -$64.0 million in the prior quarter.
• In the past five years, Change in Inventory ranged from a high of $163.0 million in Q2 2022 to a low of -$198.0 million in Q4 2022.
• Historically, Change in Inventory has averaged -$3.3 million across 5 years, with a median of $8.0 million in 2026.
• The sharpest annual moves came in 2022 and 2025: Change in Inventory surged 1153.85% in 2022, then plunged 318.52% in 2025.
• A 5-year view of Change in Inventory shows it stood at -$198.0 million in 2022, then jumped by 71.72% to -$56.0 million in 2023, then jumped by 51.79% to -$27.0 million in 2024, then plunged by 137.04% to -$64.0 million in 2025, then jumped by 112.5% to $8.0 million in 2026.
• The last three Change in Inventory figures came in at $8.0 million (Q1 2026), -$64.0 million (Q4 2025), and -$2.0 million (Q3 2025), per Business Quant data.