SK Hynix said Monday it plans to sell nearly 17.8 million shares in a US IPO that could raise around $28 billion based on its closing price last Friday in Seoul. The South Korean memory maker will list American Depositary Receipts, each representing one-tenth of a common share, and expects to price the securities on Thursday and begin trading on Friday. The listing hands US investors direct access to the second name in the global memory duopoly after Samsung, at a moment when AI infrastructure spending has made memory the tightest link in the datacenter supply chain.
The numbers behind the offering explain the timing. SK Hynix reported first-quarter revenue up nearly 200% year-over-year, and its stock has climbed roughly 260% so far this year on the Seoul exchange. The company is capitalizing on that run by tapping a US shareholder base that has, until now, had to buy its closest domestic comparison — Micron — to bet on the memory boom.
The demand driver is the specific memory profile that AI workloads require. Training and serving large models consumes high-bandwidth memory, DRAM and NAND at rates that have outstripped the industry's ability to build fabs. Hyperscalers Amazon, Microsoft, Google and Oracle are all racing to stand up AI datacenters, and each new site multiplies the memory bill of materials rather than substituting for it. The resulting squeeze has been nicknamed RAMageddon inside the industry.
Key facts
- 01SK Hynix plans to sell nearly 17.8 million ADRs in a US IPO that could raise about $28 billion based on last Friday's Seoul close.
- 02Each ADR represents 1/10 of a common share; pricing is expected Thursday with trading beginning Friday.
- 03SK Hynix's Q1 revenue rose nearly 200% year-over-year, and its stock is up roughly 260% year-to-date.
- 04SK Hynix and Samsung have committed over $550 billion to expand memory manufacturing capacity.
- 05US rival Micron is up nearly 700% over the past year to a valuation above $1 trillion.
Downstream, the shortage is already reshaping consumer pricing. Apple executives have said the memory crunch is forcing the company to raise prices on Mac computers and iPads, an unusual admission from a firm that typically absorbs component costs to protect sticker prices. When Apple flinches on memory, the pressure is real.
SK Hynix and Samsung have collectively pledged more than $550 billion to expand memory manufacturing capacity in response. That is one of the largest coordinated capex commitments in semiconductor history, and it reflects a bet that AI memory demand will hold for years, not quarters. It also concentrates a huge share of the world's memory buildout in South Korea, with strategic implications for both Washington and Beijing.
The buildout carries a familiar risk. Memory is a cyclical commodity, and past supercycles have ended when supply caught demand and prices collapsed. If the new fabs come online just as model architectures shift toward less memory-intensive designs, or as inference workloads move to specialized silicon with on-die memory, SK Hynix and Samsung could find themselves with capacity the market no longer needs. Prior memory downturns have wiped out multiple quarters of profit at both firms.
For now, Wall Street is not pricing that risk. Micron, the closest US comparison to SK Hynix, has risen nearly 700% over the past year to a valuation north of $1 trillion, driven by record AI-linked memory revenue. That run has left investors hunting for a second pure-play memory bet, and SK Hynix's ADRs land into exactly that appetite.
The listing also arrives days after Samsung guided to an 18-fold profit jump on AI memory demand, coverage we published last week. Taken together, the two disclosures make the shape of the current cycle unmistakable: HBM is sold out, DRAM pricing is firm, and the Korean duopoly is capturing most of the upside while Micron rides the same wave from the US side.
Skeptics will note that ADR listings often price into peak sentiment, and that memory cycles have historically punished investors who buy the top. SK Hynix's 260% year-to-date move already reflects a lot of good news, and any softening in hyperscaler capex guidance — or a faster-than-expected ramp of competing HBM supply from Micron or a re-entrant like a Chinese vendor — could compress margins quickly. The $550 billion capacity pledge is itself a leading indicator of eventual oversupply.
The strategic read is that memory is now a first-class AI story rather than a component footnote. Nvidia gets the headlines and the multiple, but every H-series and B-series GPU it ships is paired with HBM stacks that SK Hynix or Samsung made, and the memory content per accelerator is rising with each generation. A US listing gives SK Hynix a deeper capital pool to fund its share of the $550 billion buildout, a more liquid currency for any future US acquisitions, and a direct hedge against the political risk of being a purely Seoul-listed supplier to American hyperscalers. Whether the stock holds its 260% gain is a cycle question. Whether memory stays central to the AI trade is not.
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