South Korea's KOSPI index experienced a significant selloff, plunging 8.23% as investors cashed in on the AI rally, revealing the market's heavy reliance on semiconductor stocks. This sharp reversal, exacerbated by geopolitical tensions, saw major chipmakers like Samsung and SK Hynix tumble, highlighting the index's concentration risk.

Shares have fallen in Asia, with South Korea's benchmark dropping more than 5%, after sharp declines for some big artificial intelligence-related stocks in the U.S. U.S. futures…

“Following a period of upward revisions to earnings expectations across the sector, investors are taking a more selective approach to new information and guidance updates,”

More stocks listed on the benchmark Korea Composite Stock Price Index (Kospi) have declined than advanced in recent weeks despite the market rally, the bourse operator said Sunday.

South Korea's KOSPI index plummeted nearly 9% on Monday, triggering circuit breakers, as strong U.S. jobs data fueled expectations of Federal Reserve rate hikes. Tech giants…