KOSPI plunges 5.28% to close at 5383.80, sell-side sidecar triggered
On the 5th, KOSPI closed down 5.28% at 5383.80, and the daily decline reached 300 points. Foreign investors net sold 3.42 trillion won, while SK Hynix fell 9.46% and Samsung Electronics fell 7.57%. Concerns over tighter AI data center regulation after the US midterm elections were cited as the reason for the selloff.