South Korea's Kospi index sinks more than 7% on semiconductor share sell-off over AI boom worries

South Korea's Kospi index dropped over 7%, primarily driven by a sell-off in semiconductor stocks amid fears that AI-related competition, particularly from China's memory chip advances, may undermine established players like Micron Technology, Samsung Electronics, and SK Hynix.

This Wire brief sits within Fusion42's coverage of Semiconductors, and 15 sources have reported it between 12 Oct 2026 and 15 Oct 2026.