SK Hynix (SKHY) shares traded in a volatile range during the week of October 19, 2026, pressured by a broader AI-related sell-off that erased more than 30% from the stock’s October peak amid concerns over hyperscaler spending and Chinese DRAM competition, before rebounding sharply on October 23 after the company scrapped plans for a U.S. listing of its Solidigm NAND subsidiary. Record Q2 operating margins of 76% and multi-year HBM supply agreements underscored sustained AI memory demand, with HBM4 shipments already underway, while analysts maintained strong-buy ratings and price targets averaging above $250. Traders are now focused on the October 28 Q3 earnings release for confirmation on margin trends and the stronger Korean won’s impact, alongside any signals on HBM supply tightness through 2027.