AI stocks fall on Thursday. Super Micro tumbles 15%; Arm Holdings sinks 7%; Microsoft falls 5%; Nvidia drops over 4%.
Warnings from Meta Platforms and Microsoft about rising AI-related costs dampened optimism around AI stocks.
Super Micro Computer shares continued to fall 15% after tumbling 32.7% on Wednesday after it said Ernst & Young had resigned as its public accounting firm, over a month after Hindenburg Research alleged "accounting manipulation" at the AI server maker.