KOSPI’s Recovery Fades as Early Gains Evaporate from SK Hynix - Yahoo Finance

On June 24, 2026, South Korea's KOSPI index showed a brief recovery after the previous day's sharp decline, but quickly reversed course. While the market opened higher, gains evaporated as SK Hynix fe... Read original →

SK Hynix’s sharp pullback reveals the AI memory market’s acute sensitivity to sentiment shifts. As the primary driver of HBM3E and HBM4 adoption, its volatility directly disrupts TSMC’s CoWoS packaging allocation and NVIDIA’s next-gen GPU ramp timelines, triggering downstream tech-chain ripple effects. Upcoming U.S. semiconductor export controls could raise compliance costs across its Taiwan, China and Korean fabs. If Micron’s earnings signal inventory corrections, a sector-wide price war looms. Samsung, though stable now, is accelerating HBM4 validation to reclaim technical leadership, while Micron leverages geopolitical narratives to position itself as a ‘trusted supplier’ for North American AI clients. Over the next 12–24 months, the HBM race will shift from technology premiums to yield and cost discipline—players without vertical integration will be squeezed out, driving further consolidation.