Shares of US optical communication companies fell sharply on May 15, with major suppliers for the data center and artificial intelligence industry posting steep losses. The move points to a potential shift in investor sentiment after a period of high valuations for hardware providers linked to AI.
The sell-off was widespread across the sector. Coherent Inc. (COHR) shares dropped more than 7 percent, while Astera Labs (ALAB) fell nearly 7 percent. Elsewhere, Applied Optoelectronics Inc. (AAOI) declined over 6 percent, and Lumentum Holdings Inc. (LITE) was down more than 5 percent.
These companies supply critical components, from advanced lasers to connectivity chips, that enable the high-speed data transfer required in modern data centers. The group's performance is often seen as a barometer for future capital spending by cloud and AI giants such as Nvidia, Amazon Web Services, and Microsoft.
The collective downturn could signal a re-evaluation of the AI hardware boom. After a year of soaring stock prices fueled by the demand for AI infrastructure, investors may be taking profits or growing concerned that a potential slowdown in spending from any single major customer could ripple through the entire supply chain.
This article is for informational purposes only and does not constitute investment advice.