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South Korean Shares Hit All-Time High on AI-Led Chipmaker Rally

Samsung Electronics and SK Hynix led gains as retail investors bought 1.2 trillion won and the KOSPI briefly triggered a trading curb.

  • South Korean stocks hit a fresh record high on Monday, May 11, 2026, with the Korea Composite Stock Price Index breaching the 7,700-point mark, driven by an extended rally in blue-chip semiconductor shares.
  • Friday's gains on Wall Street drove the surge, as chip and artificial intelligence shares climbed; Micron Technology soared 15.49 percent and AMD jumped 11.44 percent.
  • In Seoul, market top-cap Samsung Electronics surged 5.21 percent, while rival SK Hynix skyrocketed 8.54 percent, as retail investors made net purchases totaling 1.2 trillion won.
  • Despite geopolitical uncertainty regarding the United States-Iran peace deal, the market outperformed regional peers; Japan's Nikkei and Taiwanese stocks rose less than 1 percent.
  • Kiwoom Securities analyst Han Ji-young warned that "short-term volatility can grow in semiconductor stocks" as profit-taking pressure rises among all investor groups.
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Breaking News: KOSPI Surpasses 7,800 Immediately After Opening, Sets New Record High

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조선일보 broke the news on Monday, May 11, 2026.
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