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South Korea's Kospi Plunges 3.73%, Erasing Two-Day Rebound

Foreign investors and institutions sold a net 1.5 trillion won as worries over AI investment hit chip shares and dragged Seoul stocks lower.

  • South Korean shares plunged by nearly 4 percent on Tuesday, as concerns over investments in the AI-related value chain sparked a sell-off in major chip shares.
  • Wall Street tech-centered sell-offs triggered the local decline, with the Dow Jones Industrial Average falling 0.34 percent and the Nasdaq Composite plunging 2.14 percent overnight.
  • Market heavyweights led the decline: Samsung Electronics fell 2.98 percent to 211,500 won, while Samsung Electro-Mechanics dipped 1.28 percent as investors cashed in recent gains.
  • Trading volume reached 16 trillion won , with decliners far outnumbering advancers 771 to 117 as institutions sold a net 1 trillion won.
  • Investors remain cautious ahead of earnings reports from Tesla and Meta Platforms due this week; Daishin Securities analyst Lee Kyoung-min said "credit risks and profitability surrounding AI investment have yet to be fully resolved.
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Globes presents its first update on the state of markets around the world • And this morning: The Seoul Stock Exchange loses nearly 4%, led by chip stocks • Oil prices are recording slight increases, Brent crude is trading around $110 per barrel • Netflix reports will be published today, Meta and Tesla will report tomorrow • Also: Meitav's chief economist writes in his weekly review - Technology stocks have completely disconnected from other sec…

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The Korea Times broke the news in Seoul, Korea (the Republic of) on Monday, October 19, 2026.
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