Morgan Stanley's Lisa Shalett warned semiconductor stocks may be overvalued as hyperscalers increasingly develop lower-cost proprietary AI chips. She expects slowing AI infrastructure spending and weaker pricing power to challenge chipmakers, despite continued investor interest and SK Hynix's Nasdaq debut.

(Bloomberg) -- A selloff in chipmakers dragged down the stock market on concerns over whether massive artificial-intelligence investments will justify lofty valuations after a…

U.S. markets closed lower as chip stocks declined on concerns the AI-driven rally may be overstretched. Losses in Micron and other semiconductor firms weighed on indices, while…