Samsung Electronics and SK hynix fall in tandem
KOSDAQ fails to reclaim 700-mark

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Yonhap News Agency

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The KOSPI gave up all of its early gains on the 13th and closed below the 5,300 level. Foreign investors turned net sellers, while large-cap semiconductor stocks, including Samsung Electronics and SK hynix, fell.


The KOSPI closed at 5,290.53, down 0.98% from the previous trading day. The index opened at 5,452.41, up 2.05% from the previous day, and climbed to an intraday high of 5,504.44 before turning lower in the afternoon. It at one point fell as low as 5,259.09, leaving a 245.35-point gap between its intraday high and low.


Foreign investors’ buying, which had supported the market’s morning gains, did not continue. With uncertainty surrounding the artificial intelligence (AI) industry persisting after Nvidia CEO Jensen Huang’s resignation, shifts in foreign investor flows added to the index’s volatility. Overnight on Wall Street, Nvidia fell 4.34%, while the Philadelphia Semiconductor Index lost 0.54%.


Foreign investors ended the day with net sales of 705.7 billion won. Institutions also recorded net sales of 39.9 billion won. Individuals were the only group to post net purchases, at 195.7 billion won.


Sector performance diverged sharply. Electricity and gas led the declines, falling 7.74%. Electrical and electronics (-1.79%), metals (-1.67%), manufacturing (-1.44%), and IT services (-1.20%) also weakened. By contrast, telecommunications (1.72%), securities (1.57%), general services (1.38%), and real estate (1.24%) rose.

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Among the 10 largest stocks by market capitalization, decliners outnumbered gainers. Semiconductor-related stocks were notably weak, with Samsung Electronics (0.96%) and SK hynix (-3.03%) among them. SK Square (-3.67%), Samsung Electro-Mechanics (-3.50%), Samsung Biologics (-2.62%), and LG Energy Solution (-1.52%) also fell. In contrast, KB Financial Group (4.74%), Celltrion (2.15%), Hyundai Motor (1.13%), and Samsung Life Insurance (0.80%) advanced.


The KOSDAQ closed at 699.66, up 3.13 points (0.45%) from the previous trading day. It rose as much as 4% at one point during the session but gave up most of its gains and failed to reclaim the 700 level.


Foreign investors also recorded net sales of 61.2 billion won. Individuals sold a net 74.9 billion won worth of shares, while institutions recorded net purchases of 127.2 billion won.


More sectors rose than fell. Non-metallic minerals (5.52%) led the gains, followed by transportation equipment and parts (2.07%), machinery and equipment (1.85%), and retail (1.01%). Medical and precision instruments (-1.51%) and pharmaceuticals (-1.10%) declined.



Among the 10 largest stocks by market capitalization, Rainbow Robotics (5.21%) posted a notable gain. It was followed by EcoPro BM (1.00%), SIMMTECH (0.73%), EcoPro (0.41%), and Jusung Engineering (0.29%). EO Technics (-2.72%), Wonik IPS (-1.89%), Sam Chun Dang Pharm (-1.76%), Leeno Industrial (-1.71%), and Alteogen (-0.68%) fell.


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