Westlake annual gross margin
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2025
Westlake Gross Margin Growth & History (WLK)
Westlake's gross margin was 7.28% for fiscal 2025.
View full Westlake company overviewWestlake annual gross margin history
| Fiscal year | Period ended | Gross margin | Change (percentage points) |
|---|---|---|---|
| 2025 | 2025-12-31 | 7.28% | −8.84 pp |
| 2024 | 2024-12-31 | 16.12% | −1.57 pp |
| 2023 | 2023-12-31 | 17.68% | −8.10 pp |
| 2022 | 2022-12-31 | 25.79% | −3.89 pp |
| 2021 | 2021-12-31 | 29.67% | +16.04 pp |
| 2020 | 2020-12-31 | 13.63% | −1.89 pp |
| 2019 | 2019-12-31 | 15.52% | −7.49 pp |
| 2018 | 2018-12-31 | 23.01% | +1.11 pp |
| 2017 | 2017-12-31 | 21.90% | +2.53 pp |
| 2016 | 2016-12-31 | 19.37% | −1074.27 pp |
| 2015 | 2015-12-31 | 1,093.64% | +203.08 pp |
| 2014 | 2014-12-31 | 890.56% | +548.93 pp |
| 2013 | 2013-12-31 | 341.63% | +111.27 pp |
| 2012 | 2012-12-31 | 230.35% | +105.12 pp |
| 2011 | 2011-12-31 | 125.24% | +110.02 pp |
| 2010 | 2010-12-31 | 15.22% | +6.83 pp |
| 2009 | 2009-12-31 | 8.39% | — |
Westlake quarterly gross margin
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Q2.26
| Fiscal quarter | Period ended | Gross margin | Change (percentage points) |
|---|---|---|---|
| Q2 2026 | 2026-06-30 | 19.93% | +11.20 pp |
| Q1 2026 | 2026-03-31 | 4.22% | −3.93 pp |
| Q4 2025 | 2025-12-31 | 3.43% | −8.10 pp |
| Q3 2025 | 2025-09-30 | 8.32% | −7.69 pp |
| Q2 2025 | 2025-06-30 | 8.74% | −11.97 pp |
| Q1 2025 | 2025-03-31 | 8.15% | −7.51 pp |
| Q4 2024 | 2024-12-31 | 11.54% | +4.50 pp |
| Q3 2024 | 2024-09-30 | 16.01% | −2.80 pp |
| Q2 2024 | 2024-06-30 | 20.70% | +0.96 pp |
| Q1 2024 | 2024-03-31 | 15.66% | −7.94 pp |
| Q4 2023 | 2023-12-31 | 7.04% | −10.15 pp |
| Q3 2023 | 2023-09-30 | 18.81% | −0.80 pp |
| Q2 2023 | 2023-06-30 | 19.75% | −12.49 pp |
| Q1 2023 | 2023-03-31 | 23.60% | −8.08 pp |
| Q4 2022 | 2022-12-31 | 17.19% | −14.06 pp |
| Q3 2022 | 2022-09-30 | 19.62% | −13.71 pp |
| Q2 2022 | 2022-06-30 | 32.23% | +1.73 pp |
| Q1 2022 | 2022-03-31 | 31.68% | +10.09 pp |
| Q4 2021 | 2021-12-31 | 31.25% | +14.81 pp |
| Q3 2021 | 2021-09-30 | 33.32% | +20.26 pp |
| Q2 2021 | 2021-06-30 | 30.50% | +20.61 pp |
| Q1 2021 | 2021-03-31 | 21.60% | +6.95 pp |
| Q4 2020 | 2020-12-31 | 16.44% | +3.16 pp |
| Q3 2020 | 2020-09-30 | 13.07% | −4.89 pp |
| Q2 2020 | 2020-06-30 | 9.89% | −5.97 pp |
| Q1 2020 | 2020-03-31 | 14.65% | −0.12 pp |
| Q4 2019 | 2019-12-31 | 13.28% | −4.47 pp |
| Q3 2019 | 2019-09-30 | 17.96% | −5.95 pp |
| Q2 2019 | 2019-06-30 | 15.86% | −8.84 pp |
| Q1 2019 | 2019-03-31 | 14.77% | −10.44 pp |
| Q4 2018 | 2018-12-31 | 17.74% | −6.93 pp |
| Q3 2018 | 2018-09-30 | 23.90% | +0.38 pp |
| Q2 2018 | 2018-06-30 | 24.70% | +4.33 pp |
| Q1 2018 | 2018-03-31 | 25.21% | +6.37 pp |
| Q4 2017 | 2017-12-31 | 24.68% | +8.32 pp |
| Q3 2017 | 2017-09-30 | 23.52% | +7.71 pp |
| Q2 2017 | 2017-06-30 | 20.36% | −1.86 pp |
| Q1 2017 | 2017-03-31 | 18.84% | −7.37 pp |
| Q4 2016 | 2016-12-31 | 16.36% | −9.84 pp |
| Q3 2016 | 2016-09-30 | 15.80% | −14.00 pp |
| Q2 2016 | 2016-06-30 | 22.22% | −3.56 pp |
| Q1 2016 | 2016-03-31 | 26.21% | −2.64 pp |
| Q3 2015 | 2015-09-30 | 26.20% | −4.44 pp |
| Q2 2015 | 2015-06-30 | 29.80% | +1.88 pp |
| Q1 2015 | 2015-03-31 | 25.79% | −4.54 pp |
| Q3 2014 | 2014-09-30 | 28.85% | −0.28 pp |
| Q2 2014 | 2014-06-30 | 30.64% | +4.29 pp |
| Q1 2014 | 2014-03-31 | 27.93% | +6.96 pp |
| Q3 2013 | 2013-09-30 | 30.32% | +8.23 pp |
| Q2 2013 | 2013-06-30 | 29.12% | +12.44 pp |
| Q1 2013 | 2013-03-31 | 26.35% | +11.16 pp |
| Q3 2012 | 2012-09-30 | 20.97% | +2.90 pp |
| Q2 2012 | 2012-06-30 | 22.09% | +2.77 pp |
| Q1 2012 | 2012-03-31 | 16.68% | −0.61 pp |
| Q3 2011 | 2011-09-30 | 15.19% | −0.21 pp |
| Q2 2011 | 2011-06-30 | 18.06% | — |
| Q1 2011 | 2011-03-31 | 19.32% | — |
| Q3 2010 | 2010-09-30 | 17.30% | — |
| Q2 2010 | 2010-06-30 | 15.40% | — |
Westlake gross margin trends
Over the last five reported fiscal years, Westlake's gross margin decreased from 13.63% to 7.28%, a change of −6.35 percentage points. The latest reported quarter, Q2 2026, shows 19.93%.
About the metric
What gross margin means
Gross margin measures the percentage of revenue remaining after the direct costs of producing goods or services. It helps show how efficiently a company turns sales into gross profit before operating expenses.
Calculation and source
How gross margin is calculated
TickerStat calculates gross margin as SEC-reported gross profit divided by SEC-reported revenue for the same fiscal period. Changes are shown in percentage points. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Westlake filings at SEC.gov ↗