Aehr Test Systems is trading 5.34% up at $95.64 amid semiconductor-sector strength from AI infrastructure optimism and the Qualcomm-Amazon chip collaboration.
- It gained 5.25% to $90.79 on September 8; no new company-specific announcement or earnings release was identified for September 9.
- The September 10 Lake Street investor meetings were previously announced, not a fresh catalyst.
- Recent silicon-photonics orders and strong fiscal 2026 results remain supportive factors, but predate September 9 and do not explain today’s move.