Aehr Test Systems received a follow-on production order from its lead silicon photonics customer for a fully automated FOX-XP wafer-level burn-in system, including a FOX WaferPak AutoAligner capable of testing up to nine 300mm wafers in parallel for AI and hyperscale data center applications. This order signals the customer has moved into hands-free, high-volume manufacturing of advanced silicon photonics devices aimed at easing bandwidth bottlenecks in large-scale AI and cloud infrastructure. The latest order supports the near term revenue ramp the company is targeting and helps counter some concern after recent sales declines and continued losses. However, sharp share price swings, a rich price to book multiple, recent insider selling, and the company’s removal from several Russell indexes keep execution risk firmly in focus. According to the article's valuation report, there is an indication that Aehr Test Systems' share price might be on the expensive side. Four fair value views from the Simply Wall St Community span roughly US$16 to US$71 per share.