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

South Korea's Kospi index fell more than 7% as a sell-off in semiconductor shares rippled through the market, reflecting investor unease over the durability of the artificial intelligence boom. The scale of the move underscores how heavily the benchmark's fortunes are tied to chipmakers, which have been among the biggest beneficiaries of demand linked to AI infrastructure and data-center expansion.

The pullback highlights a broader question facing investors: whether the rapid run-up in AI-related equities has outrun the earnings and spending that underpin it. When a single sector carries outsized weight in an index, shifts in sentiment toward that sector can move the entire benchmark, and South Korea's market is a clear example of that concentration risk.

For observers, the key items to watch are follow-through in semiconductor share prices, any signals from chipmakers on orders and capital spending, and whether the weakness stays contained to technology or spreads across other sectors. The episode is a reminder that thematic enthusiasm and valuation can diverge, and that concentrated exposure cuts both ways.