South Korea's Kospi slumps 8% as investors look beyond the chip boom

South Korea’s Kospi plunged about 8% after a chip rout — SK Hynix fell ~14.6% and Samsung ~9.1%, triggering trading halts.
The sell-off spread to Japan, with Kioxia tumbling ~13.5% and the Nikkei down ~2.5%, extending semiconductor pain across Asia.
Investors say AI demand remains strong but worry the chip boom may be short-lived amid huge new plant investments, profit‑taking and the risk of future oversupply.