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

South Korea's Kospi index plunged 10.8% on heavy selling of chipmaker stocks amid concerns that AI boom may be a bubble, exacerbated by reports of Chinese progress in DUV chipmaking equipment and a 466% jump in Chinese chipmaker CXMT's IPO. Samsung Electronics fell 13.4% and SK Hynix dropped 14.7%, while global chip stocks including Nvidia and AMD also declined sharply.

This Wire brief sits within Fusion42's coverage of Semiconductors. Wire is Fusion42's founder-focused intelligence feed: each story is connected to the funds and startups it names — every one with a live profile on Raise or Scout — so founders can follow the capital and the momentum behind the headline rather than just the headline itself. Wire analysis is one of the live surfaces Arthur reasons over.