SK Hynix’s $26.5 Billion US IPO Delivers Record Cash, but the Korea Discount Proves Stubborn

SK Hynix's $26.5B Nasdaq ADR sale reveals extreme valuation gap (4.8x earnings vs 29.8 industry median) as AI memory leader faces competition and Korea discount.

Investors are taking a hard look at a standout anomaly in the memory-chip sector: SK Hynix trades at just 4.8 times expected earnings, while the industry median sits at 29.84 and US rival Micron commands 6.6 times. That yawning valuation gap — rooted in what analysts call the Korea discount — is now front and centre after the world’s leading HBM supplier pulled off the biggest American depositary receipt sale by a foreign company in history.

The chipmaker placed 177.9 million ADRs on the Nasdaq on 10 July 2026 at $149 apiece, hoovering up $26.5 billion. Demand ran more than seven times the offering, and the stock closed its first day at $168.01, a 12.8% pop from the issue price. Only SpaceX’s $86 billion listing in June tops it for all US-listed IPOs. The settlement is scheduled for 14 July, with a secondary listing of common shares on the Kospi following on 29 July.

A Tale of Two Markets

In New York, the reception was rapturous. In Seoul, domestic shareholders spent the week cashing out. SK Hynix common stock ended Friday at 2,180,000 won, down 0.27% on the day and 10.10% lower on the week. The retreat comes after a blistering rally that saw the stock hit a 52-week high of 2,987,000 won on 25 June — a level it now sits 27% below. Even with the pullback, the year-to-date advance remains a staggering 222.01%. The market capitalisation briefly blew past $1 trillion intraday before settling at roughly €898.8 billion (about $940 billion), still ahead of Micron’s $1.1 trillion market cap.

The extraordinary 30-day volatility reading of 114.7% underscores the tension. The relative strength index has dropped to 46.1, signalling that the overbought conditions of recent weeks have unwound. Still, the stock holds 1.76% above its 50-day moving average of 2,142,220 won, offering a slender technical cushion.

AI Memory Dominance — With a Catch

SK Hynix controls 56.4% of the high-bandwidth memory market, the chips that power Nvidia’s AI accelerators. Yet that lead is shrinking. Analysts expect its share to slip to around 50% this year and eventually dip into the low 40% range as Samsung and Chinese players accelerate their HBM programmes. To defend its turf, the company has completed sample shipments of the next-generation HBM4E — with 12-layer units dispatched to lead customers on 18 June — and is simultaneously shifting capacity toward DDR5 standard memory, where server shortages could push margins as high as 90% this year.

Chief executive Kwak Noh-jung has framed the structural shortage of premium memory as a chronic condition, driven by relentless AI infrastructure spending. “HBM sits at the centre of the AI revolution,” he recently told The Korea Times. Chairman Chey Tae-won called the Nasdaq debut a historic moment and pledged tens of billions of dollars in additional AI-related investments, arguing that even doubling production capacity would not meet surging demand.

Capital Intensity and the Spending Plan

The $26.5 billion war chest arrives at a moment when SK Hynix’s capital intensity — at roughly 11% of revenue — trails peers such as Micron (21%), Samsung (25–30%) and Chinese rival CXMT (77%). The fresh funds are earmarked for advanced packaging technology, new memory formats such as AiM, HBF and custom HBM, and a potential US fabrication plant. Already on the table is a $3.87 billion packaging facility in Indiana, plus a planned $10 billion stake in a US-based AI solutions company.

Operationally, the company is on a tear. In the first quarter of 2026 it posted revenue of 52.6 trillion won (up 198% year on year) and operating profit of 37.6 trillion won, yielding a stunning 72% margin. For the full year 2025, record results saw revenue of 97.1 trillion won and operating profit of 47.2 trillion won. Analysts estimate second-quarter 2026 operating profit at 65.5 trillion won and full-year 2026 revenue more than tripling to roughly $235 billion.

What Comes Next

All eyes are on 22 July, when SK Hynix reports quarterly results. Investors expect details on how the $26.5 billion will be deployed — especially into the Yongin semiconductor cluster and advanced packaging lines. Meanwhile, the launch of two leveraged Nasdaq-linked products around the ADR debut has added speculative fuel, a sign that retail enthusiasm for the stock is far from exhausted.

The Korea discount may not vanish overnight, but the sheer weight of capital now flowing into the company gives the market plenty to debate — and a much bigger platform from which to make its case.