Company / Gross Margin
Westlake Chemical Partners LP Gross Margin History
FY2016-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Gross Margin
29.8%
FY2025
5-year range
29.8% / 39.2%
FY2021-FY2025
Trend
-19.2%
vs FY2024
Sector context
#25 of 69
Materials
What the data says
At 29.8%, Westlake Chemical Partners LP's gross margin ranks #25 of 69 in the Materials sector. Gross Margin has fluctuated over the past 10 years, ranging from 29.3% in FY2020 to 39.7% in FY2018.
Based on SEC 10-K filings.
29.8% in FY2025 with a 5-year CAGR of +0.5%.
Declined from 36.4% to 29.8% over the past 2 years.
Materials sector context is included.
Gross Margin over time
Growth rates
- 3-Year Change
- -9.4pp
- 5-Year Change
- +0.5pp
- 10-Year Change
- -
Sector benchmark
#25 of 69 in MaterialsTop 36% of 69This company 29.8% Sector average 26.0%
▼
+14.8% above sector average
Key checks
Key Insights
- In FY2025, gross margin decreased 19.2% year-over-year.
- Currently 3.8pp above the Materials sector average.
- Peak gross margin was recorded in FY2018.
- Lowest gross margin in the period was in FY2020.
Company context
Key Data Points
- High earnings quality (cash-backed earnings)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Gross MarginValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | 29.8% | -19.2% |
| FY2024 | 36.9% | +1.4% |
| FY2023 | 36.4% | -7.2% |
| FY2022 | 39.2% | +12.8% |
| FY2021 | 34.8% | +18.4% |
| FY2020 | 29.3% | -14.7% |
| FY2019 | 34.4% | -13.2% |
| FY2018 | 39.7% | +4.3% |
| FY2017 | 38.0% | +0.0% |
| FY2016 | 38.0% | -10.8% |
As of FY2025 · SEC 10-K · Updated Jun 30, 2026