ACLS · PEAD → 0

Axcelis Technologies reported Q1 2026 EPS of $0.72 on 2026-05-08, beating the $0.71 consensus by $0.01 (+1.4%).

Print-day reaction was +2.8% versus the prior close, a constructive open to the post-earnings window. The overnight gap to the T+1 open added another +1.2%, suggesting no immediate fade from after-hours participants. Over the following two trading days, however, price drifted back −1.8%, erasing most of the overnight extension and leaving the three-day window essentially flat. Cumulative abnormal return of +0.7% versus SPY.US falls well inside the ±3% threshold, producing a neutral PEAD verdict; no directional read is warranted through 2026-08-05.