WLK earnings date, and what happened the last 4 times

Next report

Wed Nov 4

Quality Score today -4

Before the open, in 9 days. Confirmed by the company.

WLK closed higher after 2 of its last 4 reports. On average it closed +2.9% the session after a report.

The moment WLK reports

Its figures, in plain words
How it moves after, beside its last four
Its Quality Score going in, and after

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What happened after WLK's last 4 reports

WLK's last 4 earnings reports
Reported	Score going in	Gap	Reaction	5 sessions
Aug 4, 20262026 · Before open	-5estimated	+4.3%	+15.4%	+13.2%
May 5, 20262026 · Before open	4estimated	-10.6%	-8.8%	-15.1%
Feb 24, 20262026 · Before open	0estimated	+10.4%	+12.0%	+14.8%
Oct 30, 20252025 · Before open	-6estimated	-5.4%	-7.0%	-10.4%

Aug 4, 2026, before the open: that session WLK opened +4.3% and closed +15.4%, and five sessions on it stood +13.2%. Its Quality Score going in was -5 (Poor), estimated.
May 5, 2026, before the open: that session WLK opened -10.6% and closed -8.8%, and five sessions on it stood -15.1%. Its Quality Score going in was 4 (Below Average), estimated.
Feb 24, 2026, before the open: that session WLK opened +10.4% and closed +12.0%, and five sessions on it stood +14.8%. Its Quality Score going in was 0 (Below Average), estimated.
Oct 30, 2025, before the open: that session WLK opened -5.4% and closed -7.0%, and five sessions on it stood -10.4%. Its Quality Score going in was -6 (Poor), estimated.

Across these 4 reports WLK opened higher after 2 of 4 and closed higher after 2 of 4; on average it opened -0.3%, closed +2.9%, and stood +0.6% five sessions on. Its Quality Score is -4 today, against -5 going into its Aug 4, 2026 report.

Gap: where the stock opened the session after the report. Reaction: where that session closed. Both against the close before the report. The largest of the 4: +15.4% after the Aug 4, 2026 report. A score marked estimated was worked out afterwards from that day's prices and filings; Breakaway has recorded every score live since Sep 9 2026.

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Questions about WLK's earnings

As of Oct 26, 2026: Westlake (WLK): reports Wed Nov 4, before the open. WLK closed higher after 2 of its last 4 reports. Its Quality Score is -4 (Poor). Scores as of 10:16 PM ET, 15 minutes behind.

When is WLK's next earnings date?

Reports Wed Nov 4, before the open, a date the company confirmed. WLK closed higher after 2 of its last 4 reports. Past behavior, not a forecast.

Does WLK report before or after the market?

WLK reports Wed Nov 4, before the open. Its last 4 reports came before the open.

How did WLK stock react to its last earnings report?

Aug 4, 2026, before the open: that session WLK opened +4.3% and closed +15.4%, and five sessions on it stood +13.2%.

Does WLK stock usually go up after earnings?

WLK closed higher after 2 of its last 4 reports. On average it closed +2.9% the session after a report, after opening -0.3%. Past behavior, not a forecast.

Westlake's page has its Quality Score, its chart, and its insiders' trades. Everyone reporting beside it: next week's earnings.