SK hynix (SKHY) shares closed at $191.56 on September 25 amid AI-fueled demand for its high-bandwidth memory (HBM) products, where the company holds over 50% global share. Record Q2 2026 results showed revenue surging 257% year-over-year to KRW 79.3 trillion and operating profit reaching KRW 60.5 trillion at a 76% margin, driven by DRAM and NAND price increases plus HBM leadership. Analyst targets cluster near $248–250, reflecting expectations for sustained supply tightness through 2028 and potential free-cash-flow gains. Recent volatility stems from broader memory-sector swings and AI-spending debates, while Nasdaq ADR trading and subsidiary IPO considerations add valuation re-rating potential ahead of November earnings.