SEOUL—The world’s largest maker of high-bandwidth memory has traded in Seoul for decades. By August, its shares could also trade on the Nasdaq, a move that would give American investors their first direct way to bet on the memory chips that power AI.
SK Hynix plans to list American depositary receipts in the United States as early as August, according to people familiar with the matter, and expects the Securities and Exchange Commission to approve the registration during the week of June 22. The company confidentially filed its application in March, its chief executive, Kwak Noh-jung, told shareholders at the annual meeting, part of a push to escape what Korean executives call the Korea discount, the tendency of the country’s shares to trade below global peers.
The listing would test one of the most concentrated bets in the AI supply chain. SK Hynix controls roughly 60% of the market for high-bandwidth memory, the stacked chips that sit beside Nvidia’s accelerators and feed them data at speeds ordinary memory cannot match. Nvidia’s dominance in AI processors has made SK Hynix, its principal HBM supplier, one of the biggest winners of the current cycle, with its shares more than doubling over the past year.
The company’s financial results show why. SK Hynix has posted record operating profits as AI customers queue up for its products, and analysts expect another strong quarter when the company reports in July. The bottleneck in HBM supply, which requires advanced packaging to stack dozens of memory dies, has given the company pricing power it has not enjoyed in a decade.
The listing is a response to that success. SK Hynix needs capital for one of the largest expansion programs in the memory industry: a new fab cluster in Yongin, south of Seoul, with a projected buildout cost in the hundreds of billions of dollars over the next decade, plus a $4 billion advanced-packaging plant in Indiana that puts HBM finishing on U.S. soil. The company has said it will also spend heavily on extreme ultraviolet lithography equipment through 2027.
Why Nasdaq? The exchange’s technology-heavy index profile matches the audience SK Hynix wants to reach. Many U.S. funds that track semiconductor indexes, including the widely held SOXX exchange-traded fund, can buy American-listed shares but not Korean ordinary shares, a structural gap that has kept global money out of the memory trade. An ADR listing closes that gap, and SK Hynix executives have said a fairer valuation in the United States is a goal of the offering.
The timing reflects the state of the AI IPO market. SpaceX completed its record debut in June, OpenAI and Anthropic are preparing public offerings, and investors have shown an appetite for AI-linked stocks that has pushed the Nasdaq to repeated highs. SK Hynix’s bankers, a syndicate that includes Bank of America, Citigroup, Goldman Sachs and J.P. Morgan, are betting the HBM story sells in that environment.
The risks are cyclical, and the memory industry’s history is full of booms that ended in glut. Every memory maker is expanding capacity at once, and new fabs coming online in 2027 could flood the market for conventional DRAM even as HBM stays tight. The company’s own filings warn that a slowdown in AI infrastructure investment could hurt results, and skeptics note that the last memory supercycle, in 2017-2018, ended with prices collapsing by more than half.
There are also questions about what the listing means for existing shareholders. The ADR offering would issue new shares, diluting current owners, and the proceeds will largely stay in South Korea for fab construction rather than returning to investors. Some analysts have argued SK Hynix should instead raise debt, given that its operating cash flow is at record levels, but the company has said equity is needed to fund a buildout that debt alone cannot carry.
The regulatory path appears clear. The SEC has signaled no objections, according to people familiar with the process, and the formal filing is expected to follow shortly after approval. The offering could rank among the largest foreign listings in U.S. history, a reflection of both the company’s size and the market’s hunger for AI exposure.
For Korean markets, the listing is a test of a different kind. If SK Hynix trades at a premium in New York, it will strengthen the argument that Korean companies suffer from a structural discount at home, putting pressure on other large Korean firms to consider U.S. listings. If it trades flat, the Korea discount thesis loses some of its force.
Either way, the HBM story will face its broadest audience yet. For years, the memory industry’s fortunes were read from a handful of Korean and Taiwanese companies by specialists. SK Hynix’s American listing brings the most important component of the AI boom, the silicon that feeds the world’s largest models, to the widest possible pool of investors. The question is whether they will pay a price that reflects the boom’s scale, or the industry’s history.
