South Korea's KOSPI tumbles 11% as chipmakers slump

South Korea's KOSPI index fell 10.84% on 28 July, its worst day in five months, driven by a global chipmaker selloff that hammered SK Hynix and Samsung Electronics—which together represent over half the index's weight. Chinese competitor ChangXin Memory Technologies' market debut and reports of state-backed Chinese DUV lithography production deepened concerns about Korean chip makers' competitive position.

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.