World shares are mixed, while South Korea’s Kospi sinks nearly 11% on heavy selling of chipmakers

South Korea's Kospi index has plunged nearly 11% on heavy selling of chipmaking stocks that have been battered recently by waves of fears that the boom in artificial intelligence may be a bubble

July 28, 2026Updated: July 28, 2026

By CHAN HO-HIM and ELAINE KURTENBACH