Investing.com — ’s $26.5 billion Nasdaq debut on July 10, 2026—the largest U.S. listing ever by a foreign company and the second largest IPO in history—highlighted an obvious question: with AI investments breaking records and the HBM supercycle in full swing, does the Korean market-share leader, or its fierce U.S. competitor , capture more of the upside?
With both companies central to the AI infrastructure buildout and, by extension, to high-stakes political powerplays, Investing.com did a deep dive to see how the two stack up across technology, valuation, and the new geopolitical reality.
Demand far above supply
The macro backdrop for both companies couldn’t be clearer: for the foreseeable future, the demand is endless. UBS projects total memory industry revenues reaching $992 billion in 2026 and $1.76 trillion in 2027. The DRAM industry is expected to remain structurally undersupplied through at least 2028. That is not a near-term inventory cycle; it is a multi-year reshaping of the supply-demand curve.
SK Hynix CEO Kwak Noh-jung sharpened the picture in a July 10 interview: “We forecast that next year will be the worst year in the industry’s history from the supply perspective. Our customer demand continues to go up, while our capacity has limitations. We still forecast that customer demand will remain higher than our supply capacity even beyond 2030”. The candor from a sitting CEO to admit his company’s inability to meet demand is unusual and reassuring at the same time. It is arguably bullish for pricing power across the entire sector.
The HBM scoreboard
On the current generation of high-bandwidth memory, SK Hynix holds a commanding position. The company controlled 56%-58% of the HBM market in Q1 2026, with Samsung and Micron roughly tied for second at about 21%-22% each. That lead is anchored by a close partnership with Nvidia, the dominant buyer of HBM chips for its AI accelerators. SK Hynix’s HBM share, however, has declined from 69% a year earlier—a signal that competitors are narrowing the gap as Samsung begins HBM4 mass production and Micron expands its own HBM capabilities.
Micron reported fiscal Q3 2026 revenue of $41.46 billion, up 346% year-over-year, with EPS of $25.11, delivering a major beat across the board. The company’s gross margin reached 84.9%. Those numbers reflect genuine pricing power and a customer mix shifting toward higher-margin HBM and data center DRAM.
The valuation gap
Here is where the comparison gets heated. Despite holding a 58% HBM market share and completing the largest foreign listing in U.S. history, SK Hynix trades at roughly 5.8 times forward earnings, versus Micron’s 7 times. Micron commands a valuation premium even though it is a significantly smaller player by HBM share.
Several structural factors explain the gap. First, Micron is U.S.-domiciled, giving it a geopolitical tailwind that has become a real investment criterion in an era of export controls and allied semiconductor policy. Commerce Secretary Howard Lutnick has publicly urged Samsung and SK Hynix to expand U.S. output, even as Micron accelerates its own domestic investment program. Micron raised its planned U.S. investment to more than $250 billion through 2035, aiming to produce 40% of its DRAM output domestically. For institutional investors constrained by national-security screens or domestic-content mandates, Micron is simply the more accessible vehicle.
Second, currency and reporting comparability are genuine complications. SK Hynix reports in Korean won, making real-time with Micron imprecise. Investors accustomed to clean apples-to-apples EPS comparisons may anchor to Micron’s transparency as a premium. SK Hynix’s U.S. listing is designed, in part, to narrow this “Korean discount”.
“Made in the USA” positioning as a structural edge
Micron’s U.S. manufacturing footprint is not just a political talking point; it is shaping customer allocation decisions. As hyperscalers and defense-adjacent technology companies face pressure to source from allies or domestically, Micron’s identity as the sole major American memory maker becomes a differentiator that cannot be easily replicated by a Korean competitor.
In July 2026, Micron announced plans to invest up to $3 billion to strengthen the U.S. semiconductor supply chain, supporting wafer manufacturing expansion and long-term supply assurance. The company’s New York facility, backed by over $6.1 billion in CHIPS Act funding, is on track to become the largest chip manufacturing site in U.S. history.
The flip side is real: Nvidia has an established multiyear partnership with SK Hynix covering next-generation AI memory development. SK Hynix entered the HBM4 qualification process ahead of rivals. If the next two or three generations of Nvidia accelerators continue to favor SK Hynix’s HBM architecture, the Korean company’s lead may prove durable.
The capacity constraint
The most important variable for both companies may be one they cannot control: supply. SK Hynix’s CEO has publicly forecast that 2027 will see the most severe memory supply crunch in industry history, with demand outstripping capacity through 2030 and beyond. Micron’s CEO struck a similar tone on a post-earnings call, saying the company has no visibility into when chip output will finally draw even with what customers need.
For SK Hynix, the capacity constraint is acute. The company plans to use its $26.5 billion in IPO proceeds to build a new semiconductor fabrication plant and advanced chip packaging facility in South Korea, along with investing 11.9 trillion won in EUV lithography equipment. But even with those investments, the CEO warns that demand will outrun supply for years.
For Micron, the constraint is equally real but carries a different implication. Its U.S. manufacturing expansion—including a new Boise fab expected to deliver first chips in 2027—positions it to capture domestic demand that Korean competitors may struggle to serve amid geopolitical friction.
What investors should watch
For Micron investors, the next major inflection point is the fiscal Q4 2026 earnings report tentatively scheduled for late September. Management has guided for approximately $50 billion in revenue and EPS around $31, already far above Wall Street estimates of $43 billion and $25.31. The company’s 16 strategic customer agreements lock in a minimum of roughly $100 billion in revenue at floor prices, backed by $22 billion in customer deposits. That revenue visibility is unusual in the cyclical memory industry.
For SK Hynix investors, the immediate focus is the company’s first post-listing earnings report, scheduled for July 29, 2026. Analysts expect record operating profit of 63.45 trillion won. The dollar-equivalent margin trajectory will be closely watched given the , and the market will be looking for signs that the valuation gap with Micron is narrowing.
Bottom line
Neither company is a simple “winner.” SK Hynix offers superior HBM market share, a tighter Nvidia relationship, and a cheaper valuation multiple. However, it also carries currency risk, geopolitical exposure, and the friction of a new ADR instrument. Micron offers U.S. domestic positioning, extraordinary earnings momentum, and a geopolitical premium, but it trails in HBM share and is more expensive, trading at a higher multiple.
The underlying cycle is not the debate. SK Hynix’s own CEO has made that clear: demand will outstrip supply for years. The debate is which vehicle captures more of that upside—the HBM leader at a discount, or the U.S. champion with a premium. Both arguments have merit.