AMKR · PEAD ↑ 16

Amkor Technology reported Q3 2026 EPS of $0.76 on 2026-10-26, missing the $0.79 consensus by $0.03 (-3.8%).

Print-day reaction was -6.3% versus the prior close, as the market penalised the EPS miss on the close of the report date. Overnight, however, the stock gapped up +4.8% to the T+1 open, reversing the after-hours pessimism. Over the following two trading sessions the price drifted an additional +3.2%, sustaining the recovery with no meaningful give-back. Cumulative abnormal return of +3.6% versus SPY.US puts this in PEAD long territory — drift reversed the initial reaction; per the documented pattern, the read holds through 2027-01-21.