SK Hynix hits $1 trillion valuation as AI boom lifts South Korean chip stocks - CNBC

SK Hynix's shares surged over 11% on Wednesday, pushing the South Korean chipmaker's market capitalization above $1 trillion as investor enthusiasm for AI-linked semiconductors continues to rise. The ... Read original →

SK Hynix’s $1 trillion valuation isn’t just an AI hype milestone—it signals a fundamental shift in hardware architecture. High-bandwidth memory (HBM) has transformed DRAM from a cyclical commodity into a strategic bottleneck, with SK Hynix locking in NVIDIA as its anchor client. Yet this dominance carries geopolitical risk: U.S. CHIPS Act mandates are forcing costly domestic fab investments, squeezing margins. Samsung, despite also hitting $1T, lags in AI-specific integration between logic and memory. Over the next 12–24 months, HBM4/5 transitions will widen the tech gap—Taiwan, China’s players face export controls on critical tools, while SK Hynix remains dependent on TSMC’s CoWoS ecosystem for advanced packaging. Without achieving packaging autonomy by 2027, its supply chain sovereignty stays compromised. The real winners won’t be component makers, but those defining AI infrastructure.