Read more SK Hynix Shares Surge Nearly 30% as Record KOSPI Rally Follows Microsoft's Blockbuster Earnings Beat SK Hynix Shares Surge Nearly 30% as Record KOSPI Rally Follows Microsoft's Blockbuster Earnings BeatThe ADR, which trades on the Nasdaq under the ticker SKHY, climbed to $138.79, up $3.50, or 2.59%, as of 11:58 a.m. Eastern time. The announcement reinforced investor confidence in the company's ability to maintain its competitive position in the global memory chip market at a moment of intense demand tied to artificial intelligence data center buildouts. SK Hynix also confirmed that mass production of its next-generation HBM4 high-bandwidth memory chips, a critical component for AI accelerators, had begun, with a broader production ramp planned for the second half of 2026. More recently, SK Hynix has drawn attention for a series of corporate developments beyond its core earnings results. For its fiscal third quarter, SK Hynix has guided to DRAM shipment growth of roughly 10% quarter-over-quarter, with NAND shipments expected to rise in the low single digits.