CLH · PEAD ↓ 11

Clean Harbors reported Q3 2026 EPS of $3.93 on 2026-10-28, beating the $3.18 consensus by $0.75 (+23.6%).

Print-day reaction was essentially flat at +0.11% versus the prior close, a notably muted response to a substantial earnings beat. The overnight gap to the T+1 open was a marginal -0.14%, signalling no enthusiasm carried into the following session. Over the subsequent two trading days (T+1 through T+3), the stock drifted sharply lower by -4.29%, a clear divergence from — and reversal of — the benign initial reaction. Cumulative abnormal return of -3.10% versus SPY.US places this in PEAD short territory; per the documented pattern, the read is held through 2027-01-25.