Westlake (WLK) Inventory Average (2011 - 2026)

Westlake's Inventory Average history runs 16 years deep, the most recent figure standing at $1.7 billion for Q1 2026.

• On a quarterly basis, Inventory Average fell 4.26% year-over-year to $1.7 billion in Q1 2026; TTM through Mar 2026 was $1.7 billion, a 4.26% decrease from a year earlier, with the FY2025 full-year figure at $1.7 billion, up 0.93% from the prior year.
• Inventory Average retreated to $1.7 billion in Q1 2026 per WLK's latest filing, from $1.7 billion in the prior quarter.
• Across five years, Inventory Average topped out at $2.0 billion in Q3 2022 and bottomed at $1.6 billion in Q1 2024.
• The 5-year median for Inventory Average is $1.7 billion (2024), against an average of $1.8 billion.
• Across the five-year window, Inventory Average jumped 103.39% in 2022 and declined 17.35% in 2023, its largest moves.
• Year by year, Inventory Average stood at $1.9 billion in 2022, then dropped by 15.32% to $1.6 billion in 2023, then rose by 4.55% to $1.7 billion in 2024, then fell by 1.86% to $1.7 billion in 2025, then decreased by 1.48% to $1.7 billion in 2026.
• Per Business Quant, the three latest WLK Inventory Average figures stand at $1.7 billion (Q1 2026), $1.7 billion (Q4 2025), and $1.7 billion (Q3 2025).