SK Hynix (000660.KS) is a publicly traded Memory company founded in 1983 and based in Icheon, South Korea.
| Date | Stage | Amount | Valuation | Lead investors |
|---|---|---|---|---|
| Jan 1, 1996 | IPO | — | — | — |

Samsung and SK Hynix reportedly upgrade their Chinese fabs, Xian and Dalian, to produce advanced flash chips for AI data centers amid CXMT competition.

Elon Musk publicly criticizes unnamed memory makers for 'extortionate' DRAM and HBM pricing, praising Micron's approach.

Memory stocks fall a third straight day on CXMT-driven selling, which Rosenblatt calls overblown.

SK hynix details its H-TPU, a small in-order I/O core cluster drawing about 2.5% of a CPU core's power, for future SSD controllers.
Korean chip stocks fall as China's DRAM expansion push raises competitive concerns for SK Hynix and Samsung.

Samsung's chip profit nearly ninefold year over year as demand for AI memory surges.
SK Hynix's stacked high-bandwidth memory that made it the leading HBM supplier for AI accelerators. Its 12-layer HBM3E (36GB) is the workhorse memory on Nvidia's flagship GPUs, and the company has held over 50% of the HBM market through the HBM3/HBM3E generations. Co-developed closely with Nvidia, HBM3E is the 'fuel' for training trillion-parameter models and the single biggest driver of SK Hynix's record AI-era profits.
SK Hynix's next-generation HBM, debuted at CES 2026 as a 16-layer 48GB stack. HBM4 widens the memory interface and raises bandwidth and capacity to feed next-generation accelerators such as Nvidia's Vera Rubin platform. SK Hynix aims to extend its HBM market leadership into the HBM4 generation, where it competes head-to-head with Micron and Samsung for hyperscaler and AI-lab design wins.
Beyond HBM, SK Hynix supplies server DDR5, low-power LPDDR, and compact SOCAMM2 modules for AI servers, plus high-capacity enterprise NAND SSDs through its Solidigm subsidiary (the former Intel NAND business). This broad memory-and-storage portfolio lets SK Hynix serve the full AI data-center stack, from accelerator-attached HBM to bulk DRAM and QLC storage for AI datasets.