AI boom lifts SK hynix above Samsung in market value - The Korea Herald

The semiconductor landscape in South Korea has shifted significantly amid the growing AI boom, with SK Hynix overtaking Samsung Electronics to become the country's most valuable listed company. This m... Read original →

SK hynix surpassing Samsung in market cap reflects a fundamental revaluation of AI infrastructure economics. HBM’s role as the data backbone for AI accelerators has shifted competitive advantage from pure-node scaling to system-level integration—TSV stacking, silicon interposers, and CoWoS packaging—where SK hynix’s tight alignment with NVIDIA commands a premium. This drives EUV adoption beyond logic into memory and strains advanced packaging capacity in Taiwan, China. Geopolitically, U.S. export controls compel costly Korean fab investments in America, while an ADR listing would expose SK hynix to stricter supply chain disclosures. Samsung may counter by vertically integrating its own AI SoCs with in-house HBM, and Micron could leverage CHIPS Act subsidies to secure second-source status. Over the next 18 months, persistent HBM shortages will sustain Korean valuations—but any breakthrough in CoWoS capacity or co-packaged optics (CPO) could abruptly erase today’s premium.