Aehr Test Systems is trading 6.82% up at $90.00 as semiconductor stocks rally on renewed AI optimism and improving risk appetite.
- The S&P 500 is up 0.91%, while the Nasdaq Composite is up 1.27%.
- No company-specific announcement directly explains the September 17, 2026 move; sector context offers the clearest explanation.
- Zacks lowered its rating from strong-buy to hold, which conflicts with today’s gain and is unlikely to be the catalyst.