CLH earnings date, and what happened the last 4 times

Next report

Wed Oct 28

Quality Score today 17

Before the open, in 2 days. Confirmed by the company.

CLH closed higher after 2 of its last 4 reports. On average it closed -2.4% the session after a report.

The moment CLH reports

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

Get an alert when CLH reports, with its figures

See it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

What happened after CLH's last 4 reports

CLH's last 4 earnings reports
Reported	Score going in	Gap	Reaction	5 sessions
Jul 29, 20262026 · Before open	14estimated	+9.0%	+7.5%	+2.3%
May 6, 20262026 · Before open	17estimated	-3.0%	-8.2%	-5.5%
Feb 18, 20262026 · Before open	14estimated	+3.1%	+2.7%	+5.8%
Oct 29, 20252025 · Before open	10estimated	-13.3%	-11.5%	-15.2%

Jul 29, 2026, before the open: that session CLH opened +9.0% and closed +7.5%, and five sessions on it stood +2.3%. Its Quality Score going in was 14 (Above Average), estimated.
May 6, 2026, before the open: that session CLH opened -3.0% and closed -8.2%, and five sessions on it stood -5.5%. Its Quality Score going in was 17 (Excellent), estimated.
Feb 18, 2026, before the open: that session CLH opened +3.1% and closed +2.7%, and five sessions on it stood +5.8%. Its Quality Score going in was 14 (Above Average), estimated.
Oct 29, 2025, before the open: that session CLH opened -13.3% and closed -11.5%, and five sessions on it stood -15.2%. Its Quality Score going in was 10 (Average), estimated.

Across these 4 reports CLH opened higher after 2 of 4 and closed higher after 2 of 4; on average it opened -1.1%, closed -2.4%, and stood -3.2% five sessions on. Its Quality Score is 17 today, against 14 going into its Jul 29, 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: -11.5% after the Oct 29, 2025 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.

Tested. Our top-⁠scored stocks returned 2.2x the average stock over the next month. How we tested it

Pro members see CLH's reaction live as a report comes out, the release's figures, and an optional alert before it reports.

We do the work for you. Every stock is scored and ranked, every 15 seconds while the market is open. Here it's 15 minutes behind. Pro members see it live.

Questions about CLH's earnings

As of Oct 26, 2026: Clean Harbors (CLH): reports Wed Oct 28, before the open. CLH closed higher after 2 of its last 4 reports. Its Quality Score is 17 (Excellent). Scores as of 11:11 PM ET, 15 minutes behind.

When is CLH's next earnings date?

Reports Wed Oct 28, before the open, a date the company confirmed. CLH closed higher after 2 of its last 4 reports. Past behavior, not a forecast.

Does CLH report before or after the market?

CLH reports Wed Oct 28, before the open. Its last 4 reports came before the open.

How did CLH stock react to its last earnings report?

Jul 29, 2026, before the open: that session CLH opened +9.0% and closed +7.5%, and five sessions on it stood +2.3%.

Does CLH stock usually go up after earnings?

CLH closed higher after 2 of its last 4 reports. On average it closed -2.4% the session after a report, after opening -1.1%. Past behavior, not a forecast.

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