The benchmark KOSPI slipped 1.57% to around 4,101 on Monday, pulling back from near one-month highs as renewed concerns over a potential AI bubble dampened sentiment. Investor caution followed Friday’s decline on Wall Street, where US equities slipped after Broadcom issued a weaker-than-expected margin outlook for its AI business. The guidance reignited worries that the massive investments US tech giants are pouring into AI infrastructure may not generate meaningful returns in the near term, raising questions about valuation sustainability across the sector. Large-cap stocks traded lower, with semiconductor firms leading the losses. Major decliners included Samsung Electronics (-3.31%), SK Hynix (-3.33%), Hyundai Motor (-1.82%), Doosan Enerbility (-3.14%), Hanwha Aerospace (-4.27%), and HD Hyundai Heavy Industries (-3.14%). In contrast, biotech stocks such as Samsung Biologics (4.31%), Celltrion (0.59%), and LG Chem (0.34%) posted gains.
