HBM Demand Continues to Fuel Rally, SK Hynix Rises Over 6% to New High, Market Cap Surpasses 2,000 Trillion Won - TradingKey

SK Hynix's stock surged on June 22, 2026, reaching a record high of over 2.94 million won, pushing its market capitalization past 2,000 trillion won. The rally was driven by the rapid expansion of dem... Read original →

SK Hynix’s market cap surge past 2,000 trillion KRW reflects structural shifts, not speculative hype. The delivery of 12-layer HBM4E samples—enabled by MR-MUF and 3nm EUV integration—triggers a cascade: TSMC must reallocate CoWoS capacity toward HBM-centric advanced packaging, cementing a memory-logic co-design paradigm. U.S. export controls on semiconductor tools raise near-term R&D costs but accelerate Korea’s material localization, enhancing supply chain sovereignty. Micron’s HBM4 push and Samsung’s X-Cube bet pale against SK Hynix’s NVIDIA alliance, which effectively secures HBM4E exclusivity for Blackwell Ultra platforms. Within 18 months, HBM will transition from AI training exclusivity to inference-standard, igniting a mid-tier server DRAM upgrade cycle. With yield leadership and Nasdaq ADR momentum, SK Hynix is positioned to capture sustained premium valuation as global capital prices HBM as critical AI infrastructure.