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S&P 500, Nasdaq end sharply lower as revived AI doubts ignite tech selloff

Meta’s AI spending plans and a broader chip selloff rattled investors, even as most S&P 500 companies have topped earnings estimates.

  • On Thursday, October 22, 2026, the Nasdaq Composite tumbled 2.8% and the S&P 500 fell 1.4%, marking their steepest declines in months as investor confidence in AI-related infrastructure spending waned.
  • Doubts regarding the return on investment for massive AI capital outlays triggered the selloff, following third-quarter earnings reports from tech giants Meta Platforms and Tesla Inc. that emphasized rising costs.
  • Brent crude prices leaped 4% to $113 per barrel during escalating conflict fears in Iran and Houthi attacks on Saudi infrastructure, further compounding market jitters.
  • Seeking safety, investors drove the 10-year Treasury yield down to 4.96% from 5.13% as stock market volatility intensified, signaling a flight to government bonds.
  • Adam Crisafulli, head of Vital Knowledge, warned that markets are becoming "increasingly less accommodating" to massive AI funding, noting that AI growth remains "dependent on capex.
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Worries about the future of artificial intelligence (AI) investments wiped a trillion dollars off the valuations of technology companies on Thursday. The tense economic environment is starting to weigh on even ambitious AI development plans, and the market is starting to react with extreme sensitivity to even relatively minor news.

·Vilnius, Lithuania
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The Dow Jones Industrial Average stock index ended the bidding on Thursday with a small margin, S&P 500 and Nasdaq Composite fell sharply following the listings of technology companies. Nasdaq fell as much as possible from June (2.6 per cent) against a new wave of investors' fears about the large costs of artificial intelligence companies.

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WTVB broke the news on Tuesday, October 20, 2026.
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