CGNX · PEAD ↓ 100

Cognex reported Q2 2026 EPS of $0.45 on 2026-08-05, beating the $0.42 consensus by $0.03 (+7.1%).

Print-day reaction on 2026-08-05 was –1.1% versus the prior close — a muted negative response despite the EPS beat, leaving the stock slightly below its pre-earnings level. The overnight gap into 2026-08-06 opened +2.0% above the prior close, briefly suggesting the after-hours market was repricing the beat more favourably. Days 1–3 drift told a sharply different story: the stock fell –4.5% from the T+1 close through the T+3 close, accelerating away from the initial reaction rather than recovering it. Cumulative abnormal return of –10.2% versus SPY.US overwhelmingly clears the –3% PEAD short threshold; per the documented drift pattern, the read is held through 2026-11-02.