Global Market: South Korean shares surge 6% as SK Hynix earnings fuel AI chip rally

South Korean equities rallied roughly 6% in the session, with the move attributed to strong earnings from SK Hynix, a leading supplier of memory chips used in AI accelerators and data center hardware. The transmission channel runs through earnings-driven re-rating and sector risk appetite: a beat from a bellwether memory maker signals that demand for high-bandwidth memory tied to AI infrastructure is translating into revenue, pulling capital toward semiconductor names and the broader KOSPI index, where chipmakers carry significant weight. Exposure is concentrated in Korean memory and semiconductor equities, with knock-on sensitivity in global AI-linked hardware names and in the won, which tends to strengthen when export-heavy sectors show earnings momentum. Traders will watch the next SK Hynix and Samsung Electronics guidance on HBM pricing and capacity, along with Korea's monthly export data for semiconductors, as the clearest tests of whether the AI-driven chip cycle is broadening or stretching.

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