SK Hynix shares plunge over 11% as Asia sees tech rout, tracking U.S. chip losses

SK Hynix plunged more than 11% Thursday as a U.S. chip-sector selloff cascaded through Asian semiconductor markets. The Seoul-traded stock has whipsawed since its U.S. listing last week, extending volatility that began with its dual-listing debut.

The drop followed steep losses among U.S. chipmakers in the prior session, triggering contagion across the region's tech-heavy bourses. SK Hynix, South Korea's second-largest chipmaker and a leading supplier of high-bandwidth memory for AI applications, bore the brunt of the rout among Asian peers.

The company's recent U.S. listing was intended to broaden its investor base and increase liquidity, but the dual-listing structure has amplified price swings as traders arbitrage between Seoul and American depositary receipts. Thursday's 11%-plus decline marks one of the sharpest single-day moves since the cross-border launch.

Broader semiconductor weakness reflects growing concern over AI infrastructure spending cycles and inventory digestion across data-center supply chains, though no company-specific catalyst drove Thursday's move in SK Hynix shares.