KOSPI tumbles as Democrat sweep fuels AI infrastructure concerns
Korean stocks plunged Thursday, as concerns over tighter U.S. regulation of artificial intelligence (AI) and data center development triggered a broad sell-off in semiconductor shares following sweeping Democratic victories in the midterm elections. The benchmark KOSPI opened at 5,580.09, down 1.82 percent from the previous close, according to the Korea Exchange. It remained in negative territory throughout the session, eventually closing at 5,383.80, down 5.28 percent. The decline was driven largely by a rout in Samsung Electronics and SK hynix, the country’s two semiconductor heavyweights, which together account for roughly half of KOSPI’s market capitalization. Their outsized weight left the index particularly vulnerable to a shift in sentiment toward the chip sector. SK hynix plunged 9.46 percent to 1.26 million won, while Samsung Electronics tumbled 7.57 percent to close at 201,500 won. The weakness in Korean chip stocks followed a sell-off in related U.S. shares overnight. Nvidia fell 3.17 percent, while chipmakers Micron and SanDisk lost 7 percent and 7.91 percent, respectivel
