StocksHigh ImpactUpdated•Originally published 6 November 2026•Updated 6 November 2026•
1 min read
KOSPI Plunges 8.55% Triggering Circuit Breaker as Chip Stocks Crash
Key Facts
1The KOSPI index fell 8.55% to 4,923.47, triggering a circuit breaker that suspended trading for 20 minutes.
2Samsung Electronics shares dropped 9.98% while SK Hynix plunged 11.79%.
The South Korean KOSPI index plunged 8.55% to 4,923.47, triggering a circuit breaker that suspended trading for 20 minutes. bloomingbit reported that the sell-off in technology shares was more severe than initially estimated, with Samsung Electronics falling 10.07% and SK Hynix sliding 12.26%.
The market turmoil followed concerns over potential regulatory crackdowns on U.S. AI investments and data centers following the midterm election results. Regarding global trading levels, SKHY closed at $123.9 and SMSN.L closed at $3,578 on November 5, 2026.