SK Hynix, world's second-largest HBM manufacturer, debuts on Nasdaq via $26.5B ADR listing

SK Hynix's roughly $26.5 billion capital raise at $149 per American depositary share represents a defining moment for the AI supply chain. The Korean memory giant controls approximately 58% of the high-bandwidth memory market, giving it a commanding position in the technology required to make NVIDIA's most advanced chips work. The offering ranks as the second-largest share sale ever, trailing only SpaceX's NASDAQ debut last month.

For U.S. investors, the debut closes a long-standing accessibility gap. SK Hynix has been the essential HBM supplier to NVIDIA throughout the AI buildout, yet trading in the Korean parent required navigating Seoul-listed shares. It also arrives as NVIDIA CEO Jensen Huang's "largest infrastructure expansion in human history" creates extraordinary demand for a product that remains in short supply.

According to analyst Kristina Partsinevelos: "SK Hynix is the world leader in high bandwidth memory. The memory that feeds AI chips with roughly 58% of that market. Micron and Samsung competitors split roughly 21% each… as per Counterpoint Research." She added a blunter competitive assessment: "SK Hynix is bigger, cheaper and closer to NVIDIA."

Revenue is expected to triple to $235 billion this year, with the company committing over $720 billion in capital investment over the coming years, primarily in South Korea. A separate roughly $458 million from the U.S. CHIPS Act is earmarked for an Indiana advanced packaging facility.

Memory prices have remained exceptionally strong due to tight supply. "None of that supply, though, arrives before late 2027, which keeps the memory shortage going and record-high prices intact for now," Partsinevelos noted. Index inclusion should provide additional support: "Berkeley estimates the stock could see up to roughly $14 billion in passive buying alone as it enters the major indices just over the next few months."

SK Hynix's U.S.-listed competitor Micron Technology posted Q3 FY2026 revenue of $41.456 billion, up 345.7% year-over-year, with non-GAAP diluted EPS of $25.11 and GAAP gross margin of 84.6%. Guidance for the following quarter calls for revenue of $50.0 billion plus or minus $1.0 billion. CEO Sanjay Mehrotra stated that results "reflect the strategic value of memory in the AI era." Micron's HBM4, built on 1-beta DRAM, is in high-volume shipments for its lead customer platform, with HBM4E in development and volume production expected in calendar 2027. Shares closed at $991.64 on July 9, up 247.66% year-to-date, with analysts maintaining a consensus price target of $1,486.

On the demand side, NVIDIA reported Q1 FY2027 revenue of $81.62 billion, up 85.2% year-over-year, with Data Center revenue of $75.25 billion and total supply-related commitments of $119.0 billion. Every one of NVIDIA's Blackwell and Vera Rubin systems requires HBM stacks supplied at scale by SK Hynix.

SK Hynix's U.S. debut gives investors direct access to the company holding the strongest position in one of the AI buildout's tightest bottlenecks. It controls roughly 58% of the HBM market, and new capacity will not materially alleviate the shortage before late 2027. The longer-term risk remains that memory has never really met a supercycle that didn't eventually crash. For now, the memory shortage is likely to persist into 2027, index inclusion should provide mechanical support for the stock, and the three players controlling roughly 95% of memory production remain in a pricing environment they have not enjoyed in over a decade.