LITE · PEAD ↑ 80

Lumentum reported Q4 FY2026 EPS of $2.64 on 2026-08-11, beating the $2.62 consensus by $0.02 (+0.76%).

Print-day reaction was a modest +0.87% versus the prior close, a subdued initial move that gave little away about the eventual drift. The overnight gap to the T+1 open, however, was a forceful +9.56%, signalling that the after-hours market digested the results with considerably more conviction. Over the following two trading sessions the price drifted a net -0.68% from T+1 close to T+3 close, a marginal give-back that did not meaningfully erode the overnight surge. Cumulative abnormal return of +13.42% versus SPY.US firmly establishes a PEAD long read; the drift confirms and extends the overnight reaction, with the holding window running through 2026-11-06.