South Korean chip giant SK Hynix raised $26.5 billion in the largest foreign initial public offering in U.S. history, as American investors rushed to gain direct exposure to one of the world’s most critical semiconductor manufacturers. The company’s American Depositary Receipts began trading on the Nasdaq on Friday at $149 per share and closed 13% higher at $168.01.
The offering, which was more than seven times oversubscribed, underscores the extraordinary demand for companies at the center of the artificial intelligence supply chain. SK Hynix is the world’s second-largest memory chip maker and a dominant supplier of high-bandwidth memory — the specialized chips that power Nvidia’s AI processors and the data centers training the world’s most advanced AI models.
Why This IPO Matters
The scale of the listing is historic. At $26.5 billion, it surpasses every previous foreign ADR listing on a U.S. exchange and ranks among the largest IPOs of any kind. The company priced the shares at a 2.7% premium over its average price on the Korea Exchange, a sign of the premium American investors were willing to pay for direct access.
SK Hynix shares surged as much as 19% during intraday trading before settling at the 13% gain. The strong debut sent the company’s market capitalization past $200 billion, cementing its position as one of the most valuable semiconductor companies in the world.
The AI Memory Boom
The IPO arrives at a moment of unprecedented demand for memory chips. High-bandwidth memory, or HBM, has become one of the most sought-after components in the AI industry. These chips sit alongside GPUs in AI servers, providing the ultra-fast data access that large language models require during both training and inference. SK Hynix is the leading supplier of HBM3E, the latest generation of the technology, and counts Nvidia among its largest customers.
The company has benefited from a nearly 800% surge in its stock price over the past two years, driven by the AI boom and a global shortage of advanced memory chips. The U.S. listing gives American investors — who had previously been limited to trading SK Hynix through less liquid over-the-counter markets or the Korea Exchange — a direct path to participate in that growth.
Political Pressure and Factory Expansion
The IPO also comes with political dimensions. U.S. lawmakers and industry groups have urged SK Hynix to use the capital raised to build new fabrication plants in the United States, aligning with the CHIPS Act’s goal of reshoring semiconductor manufacturing. The company already operates a packaging facility in Indiana and has signaled openness to expanding its U.S. footprint, though no formal commitments have been announced.
SK Hynix Chairman Chey Tae-won told CNBC on the day of the listing that the company was “seriously evaluating” additional U.S. investment, noting that proximity to customers like Nvidia and the stability of the U.S. regulatory environment were compelling factors. Any major expansion would likely focus on advanced packaging — the process of integrating memory chips with logic processors — rather than the more commoditized segments of memory manufacturing.
What Comes Next
The successful listing is expected to open the door for other major Asian technology companies to pursue U.S. IPOs. Samsung Electronics, SK Hynix’s larger rival, has long been rumored to be considering a similar move, though no formal plans have been announced. The SK Hynix debut demonstrates that American markets have both the appetite and the capital to absorb even the largest foreign technology listings.
For SK Hynix, the $26.5 billion raised provides a war chest for the next phase of the AI memory race. With demand for HBM expected to grow by more than 50% annually through the end of the decade, the company is in a race against Samsung and Micron to build capacity fast enough to meet the needs of an AI industry that shows no signs of slowing down.