Here's Why Aehr Test Systems Surged Higher This Week

Aehr Test Systems (AEHR) jumped 20.9% this week after reporting record fourth-quarter bookings of $60.7 million and a $100 million backlog driven by its pivot into AI processor testing. The semiconductor test equipment maker posted results that underscore a dramatic revenue mix shift: AI-related products now account for roughly 71% of annual revenue, up from less than 5% two years ago.

Management issued fiscal 2027 revenue guidance of $130 million to $150 million, nearly triple the $50 million recorded in fiscal 2026. The explosive growth projection reflects customer demand for burn-in and test systems tailored to AI chips, a higher-margin market than the electric vehicle semiconductor testing business that previously anchored the company's sales.

The $100 million backlog provides visibility into near-term execution, while the three-year revenue trajectory signals management confidence in sustained AI infrastructure build-out. AEHR's transition comes as hyperscalers and chip designers ramp production of specialized processors for machine learning workloads.