Quick Answer
WESTLAKE CORP reported Diluted EPS of $11.70 per share (loss) for fiscal year 2025.
WESTLAKE CORP Diluted EPS — Annual History
| Fiscal Year | Diluted EPS | YoY Change |
|---|---|---|
| 2025 | -$11.70 | -352.2% |
| 2024 | $4.64 | +25.4% |
| 2023 | $3.70 | -78.7% |
| 2022 | $17.34 | +11.3% |
| 2021 | $15.58 | +508.6% |
| 2020 | $2.56 | -21.2% |
| 2019 | $3.25 | -57.3% |
| 2018 | $7.62 | -23.8% |
| 2017 | $10.00 | +226.8% |
| 2016 | $3.06 | -37.0% |
| 2015 | $4.86 | -4.1% |
| 2014 | $5.07 | +11.4% |
| 2013 | $4.55 | +58.0% |
| 2012 | $2.88 | -25.6% |
| 2011 | $3.87 | +15.9% |
| 2010 | $3.34 | +317.5% |
| 2009 | $0.80 | — |
Quarterly Diluted EPS
| Quarter Ending | Diluted EPS | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | -$6.06 | -830.1% | -445.9% |
| June 30, 2025 | -$1.11 | -146.2% | -258.1% |
| March 31, 2025 | -$0.31 | -123.1% | -137.3% |
| September 30, 2024 | $0.83 | -62.3% | -65.4% |
| June 30, 2024 | $2.40 | +3.9% | +79.1% |
| March 31, 2024 | $1.34 | -56.1% | -39.1% |
| September 30, 2023 | $2.20 | -29.0% | -4.8% |
| June 30, 2023 | $2.31 | -65.0% | -24.3% |
- WESTLAKE CORP showed a decrease of -352.2% in Diluted EPS compared to the prior fiscal year.
- Over the 2009–2025 period, WESTLAKE CORP’s diluted eps has declined by 1562.5% (from $0.80 per share to $11.70 per share (loss)).
- The most recent figure is from WESTLAKE CORP’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 26, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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