Seoul shares rebounded sharply on Tuesday, with the KOSPI recovering the 5,600 level. The earnings improvement trend seen in the NASDAQ listing application by U.S. artificial intelligence company Anthropic overnight alleviated concerns over declining semiconductor demand.
The KOSPI closed at 5,638.34, up 168.87 points (3.09%) from the previous trading session. The intraday high was 5,737.61, a gain of 268.14 points (4.90%). Korea Exchange triggered the buy-side sidecar (futures market circuit breaker) just 76 minutes after the opening bell.
Based on data from Korea Exchange and NextTrade, foreign investors made net purchases worth 835.9 billion won, while institutional investors bought a net 418.5 billion won. Retail investors sold a net 1.4046 trillion won. Foreign investors shifted to net buying for the first time in four trading days.
Samsung Electronics closed at 222,000 won, up 9,000 won (4.23%), and SK Hynix ended trading at 1,341,000 won, up 66,000 won (5.18%), leading the index’s rise.
The upward momentum in semiconductors was also prominent among top market capitalization stocks. While SK Square and Samsung Electro-Mechanics surged by over 7%, Samsung Life Insurance and Samsung C&T showed strength in the 3% range, and LG Energy Solution gained in the 2% range. Hyundai Motor and KB Financial Group were slightly higher, while Samsung Biologics Co., Ltd. closed down in the 5% range.
Lee Kyung-min, a research analyst at Daishin Securities, stated, “Amid delayed recovery in AI investment sentiment, the disclosure of Anthropic’s securities registration statement (S-1) served as a turning point for the mood.” He added, “The Q3 GDP released today showed 3.4% year-on-year growth, confirming a solid economic trend, and fundamentals centered on semiconductors are judged to remain valid.”
By sector, KOSPI electrical electronics and medical precision instruments rose in the 4% range, manufacturing in the 3% range, while machinery/equipment, finance, securities, distribution, metals, insurance, general services, construction, textiles/apparel, and transportation equipment showed strength in the 1% range. Conversely, pharmaceuticals closed down in the 3% range due to the impact of Samsung Biologics Co., Ltd.’s stock price decline.
The KOSDAQ market also rose in tandem. The index closed at 743.83, up 16.62 points (2.29%) from the previous day. Institutional investors made net purchases worth 153.7 billion won, and foreign investors bought a net 64.7 billion won, while retail investors sold a net 206.2 billion won.
All stocks ranked 2nd to 10th by market capitalization rose, excluding Alteogen (unchanged). Simmtech surged in the 9% range, Ecopro gained in the 6% range, and Ecopro BM in the 5% range. Wonik IPS, Jusung Engineering, Iotech, and Rino Industrial recorded gains in the 4% range, while HLB and Rainbow Robotics rose in the 1% range.
By sector, KOSDAQ non-metals and machinery/equipment rose in the 4% range, finance in the 3% range, manufacturing, chemicals, and distribution in the 2% range, while metals, transportation equipment, medical precision instruments, IT services, and textiles/apparel showed strength in the 1% range.
Entertainment/culture, other manufacturing, transportation/warehousing, and food/beverage/tobacco were slightly higher. Conversely, publishing was down in the 2% range, and construction fell in the 1% range. Pharmaceuticals and general services were slightly lower, while paper/wood closed unchanged.
On this day, the won/dollar exchange rate ended weekly trading at the Seoul Foreign Exchange Market at 1,323.7 won, up 0.6 won from the previous day.
in STOCK
