Black Tuesday for South Korea: How two chip companies wiped billions off the world's 6th largest stock market
South Korea's Kospi crashed 9.99% on Tuesday, its worst day in months, triggering a circuit breaker that halted trading. Chip giants Samsung Electronics and SK Hynix tumbled over 12% each, wiping billions off the world's sixth-largest stock market. A missed MSCI upgrade, leveraged ETF worries and foreign outflows fuelled the rout, dragging Asian markets lower. Here's what triggered South Korea's Black Tuesday—and whether the AI rally is cracking or simply resetting after a record-breaking 2026 run.
South Korea's Kospi crashed 9.99% on Tuesday, its worst day in months, triggering a circuit breaker that halted trading. Chip giants Samsung Electronics and SK Hynix tumbled over 12% each, wiping billions off the world's sixth-largest stock market. A missed MSCI upgrade, leveraged ETF worries and foreign outflows fuelled the rout, dragging Asian markets lower. Here's what triggered South Korea's Black Tuesday—and whether the AI rally is cracking or simply resetting after a record-breaking 2026 run.
