SK hynix Inc. shares surged 5.84% to $2,521,000 on June 17, extending a multi-day rally. - The rally was driven by robust Q1 2026 earnings and sustained investor optimism for AI-memory demand. - The company also announced on June 17, 2026, that it has shipped samples of its 12-layer next-generation HBM4E AI memory chips to major customers, reinforcing its leadership in the AI hardware supply chain.