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Amortization of GoodwillAsset Writedowns and ImpairmentCapital ExpendituresCash from Financing ActivitiesCash from Investing ActivitiesCash from OperationsChange in Account PayablesChange in Accured ExpensesChange in Acquisitions & DivestmentsChange in CashChange in InventoryChange in ReceivablesDeferred TaxesDepreciation & Amortization (CF)Depreciation and DepletionDividends Paid - CommonExchange Rate EffectFree Cash FlowGains from Investment SecuritiesLong-Term Debt RepaymentsNet Cash FlowNet IncomeOther Working Capital ChangesOther financing activitiesShare-based Compensation
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Westlake (WLK) Change in Inventory (2016 - 2025)

Westlake (WLK) has 16 years of Change in Inventory data on record, last reported at -$64.0 million in Q4 2025.

  • For Q4 2025, Change in Inventory fell 137.04% year-over-year to -$64.0 million; the TTM value through Dec 2025 reached -$51.0 million, down 152.58%, while the annual FY2025 figure was -$51.0 million, 152.58% down from the prior year.
  • Change in Inventory reached -$64.0 million in Q4 2025 per WLK's latest filing, down from -$2.0 million in the prior quarter.
  • Across five years, Change in Inventory topped out at $163.0 million in Q2 2022 and bottomed at -$198.0 million in Q4 2022.
  • Average Change in Inventory over 5 years is $12.2 million, with a median of $20.0 million recorded in 2021.
  • Peak YoY movement for Change in Inventory: surged 1153.85% in 2022, then tumbled 318.52% in 2025.
  • A 5-year view of Change in Inventory shows it stood at $129.0 million in 2021, then tumbled by 253.49% to -$198.0 million in 2022, then skyrocketed by 71.72% to -$56.0 million in 2023, then skyrocketed by 51.79% to -$27.0 million in 2024, then crashed by 137.04% to -$64.0 million in 2025.
  • Per Business Quant database, its latest 3 readings for Change in Inventory were -$64.0 million in Q4 2025, -$2.0 million in Q3 2025, and -$59.0 million in Q2 2025.