SK Hynix Rings the Nasdaq Bell: a $28B Debut That Crowns AI's Memory King
Nvidia's most important memory supplier began trading on Nasdaq as SKHY, raising about $28 billion — the largest ADR offering in Wall Street history — with the proceeds earmarked for fabs, EUV machines, and the HBM4 that feeds Vera Rubin.
The company that makes the memory behind the AI boom now trades in New York. SK Hynix began trading on Nasdaq on July 10 under the ticker SKHY, raising roughly $28 billion — the largest ADR offering in Wall Street history and, per Yahoo Finance, the second-largest listing ever globally, trailing only SpaceX's $85.7 billion raise in June. Each ADR represents one-tenth of a Korean common share, and anchors including Baillie Gifford and Coatue committed around $7 billion in combined interest before the open.
Why the money matters
The proceeds are earmarked, not vague: funding the Yongin semiconductor cluster in Korea and a procurement run of ASML EUV lithography machines. In other words, the raise converts almost directly into future high-bandwidth-memory capacity — the single scarcest input in AI infrastructure right now.
The Nvidia connection
SK Hynix comes to market wearing its crown: it leads the HBM market with a 56.4% revenue share (Q1 2026), and last month it signed a multi-year co-development deal with Nvidia — announced during Jensen Huang's tour of South Korea — giving it a formal role in designing the HBM4 that powers Nvidia's next-generation Vera Rubin accelerators. Analysts estimate SK Hynix will supply 60–70% of HBM4 volume for the platform, ahead of Samsung and Micron. As The Next Web put it, the industry's toughest bottleneck now has its own multi-year deal.
Memory is the new oil
The listing is the clearest market signal yet that the AI trade has moved down the stack. GPUs get the headlines, but every accelerator Nvidia ships is gated by how much HBM can be bonded to it — and memory, not compute, has become the binding constraint on the entire buildout. Public investors just paid $28 billion for a front-row seat to that constraint.
It also extends 2026's astonishing IPO run — SpaceX in June, SK Hynix today, with OpenAI's September filing and Anthropic's October listing still ahead. The AI supply chain is going public, layer by layer, and the market's appetite so far shows no sign of thinning.
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