Quick answer
Westlake Corporation (WLK) reported diluted EPS of $2.01 for the quarter ended 2026-06-30, in a 10-Q filed with the SEC on 2026-08-05. Its last four 10-Q/10-K filings were on 2026-08-05, 2026-05-06, 2026-02-26, 2025-10-31.
Data as of 2026-08-05. Source: SEC EDGAR XBRL company facts (10-K/10-Q filings)
| Period end | Period | Form | SEC filing date | Diluted EPS |
|---|---|---|---|---|
| 2026-06-30 | Quarter | 10-Q | 2026-08-05 | $2.01 |
| 2026-03-31 | Quarter | 10-Q | 2026-05-06 | $-1.31 |
| 2025-12-31 | Full year | 10-K | 2026-02-26 | $-11.70 |
| 2025-09-30 | Quarter | 10-Q | 2025-10-31 | $-6.06 |
| 2025-06-30 | Quarter | 10-Q | 2025-08-06 | $-1.11 |
| 2025-03-31 | Quarter | 10-Q | 2025-05-02 | $-0.31 |
| 2024-12-31 | Full year | 10-K | 2025-02-25 | $4.64 |
| 2024-09-30 | Quarter | 10-Q | 2024-11-06 | $0.83 |
| 2024-06-30 | Quarter | 10-Q | 2024-08-09 | $2.40 |
| 2024-03-31 | Quarter | 10-Q | 2024-05-02 | $1.34 |
| 2023-12-31 | Full year | 10-K | 2024-02-22 | $3.70 |
| 2023-09-30 | Quarter | 10-Q | 2023-11-02 | $2.20 |
| 2023-06-30 | Quarter | 10-Q | 2023-08-03 | $2.31 |
| 2023-03-31 | Quarter | 10-Q | 2023-05-04 | $3.05 |
| 2022-12-31 | Full year | 10-K | 2023-02-22 | $17.34 |
| 2022-09-30 | Quarter | 10-Q | 2022-11-03 | $3.10 |
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Last updated 2026-10-16. Data only, not financial or tax advice.