SK hynix Inc. American Depositary Shares (SKHY) are American depositary shares of SK hynix Inc. listed on Nasdaq. a semiconductor memory manufacturer producing DRAM, NAND flash and high-bandwidth memory products. DRAM contributes about 60%-70% of revenue and NAND about 30%-35%. As of 2024, the company was the world's second-largest supplier of both DRAM and NAND, with market shares of approximately 33% and 21%, respectively; it strengthened its NAND position after acquiring Intel's NAND business in 2021. SK Square is the largest shareholder, holding about 20% of the company.