SK Hynix, one of the leading players in the DRAM chip industry, has reached a significant milestone with its market capitalization nearing $1 billion. Despite its pivotal role in the memory market, U.S. investors have faced challenges in accessing the stock, as SK Hynix does not currently offer American depositary receipts (ADRs). However, the company has filed for ADRs, which are expected to begin trading later this year. In the meantime, U.S. investors can gain exposure to SK Hynix through the Roundhill Memory ETF, which features the company as its second-largest holding, accounting for 27% of the ETF’s total assets.
The Roundhill Memory ETF, currently trading at around $60 per share, primarily focuses on the DRAM and NAND markets, with Micron Technology and Samsung also making up substantial portions of its portfolio. In addition to SK Hynix, this ETF includes investments in Kioxia Holdings, Sandisk, and HDD manufacturers like Seagate Technology and Western Digital.
SK Hynix is recognized as the market leader in high-bandwidth memory (HBM), which has become increasingly crucial as graphics processing units (GPUs) and artificial intelligence (AI) chips require HBM for optimal performance. In the fourth quarter, the company commanded a remarkable 57% share of the HBM market and anticipates maintaining over 50% market share for its forthcoming HBM4 technology by 2026. The firm has developed a strong partnership with Nvidia, capturing around 70% of HBM orders linked to Nvidia’s Vera Rubin platform.
Financially, SK Hynix reported impressive growth, with first-quarter revenue surging nearly threefold year over year to approximately 52.58 trillion South Korean won, equivalent to about $35.6 billion. Operating profits soared over 400% to 37.61 trillion won ($25 billion), setting an all-time high operating margin of 72%.
Looking ahead, SK Hynix predicts that the DRAM market will remain supply-constrained until 2030, while demand for HBM is expected to grow significantly in the coming years. The company is investing heavily to meet this demand, including a substantial 19 trillion won ($13 billion) commitment towards a new fabrication plant for advanced packaging.
In alignment with its strategic goals, SK Hynix, along with peers Micron and Samsung, is starting to sign long-term agreements with customers that span three to five years. While this enhanced capital expenditure may limit short-term price gains, the strategy aims to provide greater visibility and reduce the cyclical volatility often seen within the DRAM market.
Despite the complexities of precise valuation, SK Hynix appears to be trading at an attractive forward price-to-earnings ratio of less than 7. As a result, for those unwilling to wait for ADRs, investing in the Roundhill Memory ETF offers a solid opportunity to gain exposure to the leading South Korean memory manufacturer.

