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AI cost fears hit Wall Street, Seoul stocks

Wall Street fell sharply on Thursday as AI investment profitability concerns resurfaced, with the Nasdaq dropping 2.6% and the S&P 500 sliding, while oil prices hit their highest since May on Middle East tensions (Korea Times, Yonhap, Chosun Ilbo). Korean stocks also plunged over 3% on profit-taking in chip shares amid persistent AI woes, with the KOSPI sliding nearly 1% at the open despite a Wall Street rebound (Korea Times, Business Korea). Korean media report investors are worried that big tech's massive AI spending may not yield timely returns, driving a flight to safe havens like U.S. Treasuries (Maeil Business).

  1. Wall Street sinks as Nasdaq falls over 2% on AI cost worries Korea Times · 2026-10-22
  2. Worldwide drops for AI stocks send Wall Street toward its worst day since July Korea Times · 2026-10-22
  3. Seoul stocks sharply down late Thursday morning amid AI concerns Korea Times · 2026-10-22
  4. [Opening Market] KOSPI Slides Nearly 1% Despite Wall Street Rally Business Korea · 2026-10-22
  5. Seoul stocks slide over 3% on profit-taking amid persistent AI woes Korea Times · 2026-10-22
  6. AI 투자비 감당할 수 있나…나스닥 2.6% 급락 조선일보 · 2026-10-22
  7. 뉴욕증시, AI 불안 재고조에 기술주 급락…나스닥 2.6%↓ 연합뉴스 · 2026-10-22
  8. AI 쇼크에 너도나도 국채로...나스닥 2.6% 급락 [월가월부] 매일경제 · 2026-10-22
  9. AI 투자비 부담·중동 전운에 흔들린 뉴욕증시… 나스닥 2.6% 급락 마감 조선일보 · 2026-10-22

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