Westlake (WLK) Operating Margin (2010 - 2026)
Westlake (WLK) posted Operating Margin of 11.13% for Q2 2026, up 14.82 percentage points from -3.69% a year earlier and up 17.61 percentage points from the prior quarter.
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Analysis
Westlake (WLK) Operating Margin (2010 - 2026) Analysis & Trends
For the trailing twelve months through Jun 30, 2026, Operating Margin at Westlake was -11.02%, down 11.92 percentage points year-over-year; for FY2025, it came in at -14.13%, down 21.33 percentage points from FY2024.
- Annual Operating Margin shows a five-year change of -19.84 percentage points (FY2020 to FY2025).
- In prior years, Westlake's Operating Margin was 7.21% in FY2024 (+1.40 pp), 5.81% in FY2023 (-13.50 pp), 19.31% in FY2022 (-4.46 pp) and 23.77% in FY2021 (+18.06 pp).
- The Q2 2026 figure stands as the highest quarterly Operating Margin since Q2 2024.
- On a year-over-year basis, Operating Margin increased in two of the last eight quarters, with an average year-over-year change of -7.58 percentage points.
- The strongest year-over-year quarter for Operating Margin in the past five years was Q3 2021, with a gain of 24.02 percentage points; the weakest was Q3 2025, with a drop of 32.77 percentage points.
- According to Business Quant data, Operating Margin for the three prior quarters was -6.49% (Q1 2026), -26.49% (Q4 2025) and -26.99% (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Operating Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Linde | 218.21 Bn | 201.33 Bn | 4.43 Bn | 27.49% |
| 2 | Corning | 136.71 Bn | 129.84 Bn | 1.63 Bn | 15.49% |
| 3 | Sherwin Williams | 80.23 Bn | 79.27 Bn | 3.34 Bn | 18.18% |
| 4 | Air Products & Chemicals | 62.17 Bn | 60.07 Bn | 1.04 Bn | -66.34% |
| 5 | Corteva | 51.95 Bn | 40.75 Bn | 3.66 Bn | 32.29% |
| 6 | LyondellBasell Industries | 37.59 Bn | 27.21 Bn | 2.04 Bn | 16.81% |
| 7 | Nutrien | 34.30 Bn | 31.17 Bn | 3.25 Bn | 28.51% |
| 8 | Qnity Electronics | 26.28 Bn | 23.71 Bn | 666.00 Mn | 25.75% |
| 9 | Ati | 25.72 Bn | 23.87 Bn | 309.80 Mn | 17.45% |
| 10 | Westlake | 8.10 Bn | -775.70 Mn | 652.00 Mn | 11.13% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 11.13% |
| Mar 31, 2026 | -6.49% |
| Dec 31, 2025 | -26.49% |
| Sep 30, 2025 | -26.99% |
| Jun 30, 2025 | -3.69% |
| Mar 31, 2025 | -1.12% |
| Dec 31, 2024 | 2.32% |
| Sep 30, 2024 | 5.77% |
| Jun 30, 2024 | 12.66% |
| Mar 31, 2024 | 7.50% |
| Dec 31, 2023 | -19.53% |
| Sep 30, 2023 | 11.20% |
| Jun 30, 2023 | 12.18% |
| Mar 31, 2023 | 15.97% |
| Dec 31, 2022 | 9.91% |
| Sep 30, 2022 | 13.04% |
| Jun 30, 2022 | 26.21% |
| Mar 31, 2022 | 25.44% |
| Dec 31, 2021 | 24.89% |
| Sep 30, 2021 | 28.18% |
API Access
Westlake Operating Margin API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=operating-margin&ticker=WLK&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "operating-margin", "ticker": "WLK", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=operating-margin&ticker=WLK&period=max&api_key=YOUR_API_KEY");
const data = await res.json();