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Asset Utilization RatioAssets AverageDebt RatioDebt to EquityEBIT MarginEBITDA MarginEBT MarginEnterprise ValueEquity AverageEquity RatioFCF MarginFCF Payout RatioGross MarginInterest Coverage RatioInventory AverageInvested CapitalNet MarginOperating MarginReturn on AssetsReturn on Capital EmployedReturn on EquityReturn on Invested CapitalReturn on SalesTimes Interest Earned

Westlake (WLK) Operating Margin (2016 - 2025)

Westlake (WLK) has 16 years of Operating Margin data on record, last reported at 26.49% in Q4 2025.

  • For Q4 2025, Operating Margin fell 2881.0% year-over-year to 26.49%; the TTM value through Dec 2025 reached 14.13%, down 2133.0%, while the annual FY2025 figure was 14.13%, 2133.0% down from the prior year.
  • Operating Margin reached 26.49% in Q4 2025 per WLK's latest filing, up from 26.99% in the prior quarter.
  • Across five years, Operating Margin topped out at 28.18% in Q3 2021 and bottomed at 26.99% in Q3 2025.
  • Average Operating Margin over 5 years is 7.87%, with a median of 11.69% recorded in 2023.
  • Peak YoY movement for Operating Margin: surged 2402bps in 2021, then tumbled -3277bps in 2025.
  • A 5-year view of Operating Margin shows it stood at 24.89% in 2021, then plummeted by -60bps to 9.91% in 2022, then tumbled by -297bps to 19.53% in 2023, then surged by 112bps to 2.32% in 2024, then tumbled by -1241bps to 26.49% in 2025.
  • Per Business Quant database, its latest 3 readings for Operating Margin were 26.49% in Q4 2025, 26.99% in Q3 2025, and 3.69% in Q2 2025.