Wall Street sinks as Nasdaq falls over 2% on AI cost worries

The Korea Times - Oct 22, 2026

The tech-heavy Nasdaq slid more than 2 percent on Thursday as growth stocks weakened after earnings from mega-caps Tesla and Meta did little to address AI-related concerns, with a recovery in oil prices further adding to market unease. Meta slipped 5.2 percent after the social media giant unveiled a new class of non-voting shares to help fund its costly AI expansion. The decline came despite stronger-than-expected quarterly revenue and an upbeat fourth-quarter sales forecast. The market weakness marked a sharp reversal from Wednesday, when robust results from SpaceX and Super Micro sparked an AI-fueled rally. The optimism faded as investors shifted their focus from earnings strength to the enormous capital required to build AI infrastructure and their uncertain return timeline. The selloff put the Philadelphia SE Semiconductor Index on track to shed more than $616 billion in market value, while the Nasdaq-100 was set to erase nearly $1 trillion. The semiconductor index fell 5.6 percent to its lowest since July 29. "Semiconductors and the Nasdaq have been elevated to a huge degree by inve

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