SK hynix Prepares for $28 Billion Wall Street Listing, Second Only to SpaceX

South Korean chipmaker SK hynix, known for its high-bandwidth memory chips, is preparing to raise roughly $28 billion (€24.5bn) on Wall Street, a sum surpassed only by SpaceX's record flotation last month.

It is an extraordinary outcome for a firm that once survived on job cuts and asset sales.

Pricing is due on Thursday, with trading expected to begin on Friday under the ticker SKHY.

SK hynix is issuing 17.79 million new shares in the form of American depositary receipts (ADRs), each representing a tenth of a Seoul-listed share, and cornerstone investors including Baillie Gifford and funds run by Coatue Management have signalled interest in up to $7 billion (€6.1bn) worth of stock.

The target was trimmed from an initial $29.6 billion (€25.9bn) after the shares slipped in recent weeks.

ADRs are certificates traded on a US exchange that stand in for shares held abroad, letting American investors buy into a foreign company without dealing in a foreign currency or market.

Unlike a conventional flotation, this is not SK hynix's stock market debut. Its primary listing remains on Seoul's Kospi index, and the Nasdaq offering simply opens a second, dollar-denominated avenue for investors to gain exposure.

The listing arrives with the company already worth more than $1 trillion (€876bn), a threshold also crossed by rivals Samsung Electronics and Micron, after a surge of more than 200% this year.

Proceeds will fund new fabrication plants, chiefly a vast cluster in Yongin, plus its first US packaging facility in Indiana.

The move is partly about valuation. Korean-listed chipmakers have long traded at a discount to American peers, and a Nasdaq listing offers a chance to close that gap.

The AI memory boom — and the risks

The AI build-out has transformed the industry's economics.

As hyperscalers pour hundreds of billions into data centres, memory prices have exploded, with DRAM up 44% and NAND flash up 53% in a single quarter, according to Citi Research, and manufacturers have already sold most of their 2026 production.

SK hynix reported first-quarter revenue above 50 trillion won (€29bn) and operating margins north of 70%, figures unheard of for a chipmaker, and commands about 60% of the high-bandwidth memory (HBM) market, according to Counterpoint Research.

Yet the timing is delicate.

Memory has always been a brutally cyclical business. The AI-driven rally that transformed SK hynix has begun to wobble as chip stocks sold off sharply across Asia last week, and Samsung lost more than $100 billion (€87.5bn) in market value despite posting a record profit.

Investors are increasingly asking whether the vast sums being spent on AI infrastructure will earn a return, a question that the Bank for International Settlements raised in late June when it warned that the boom could seed the next financial crash.

Built, broken and rebuilt

Those concerns are not new for SK hynix.

SK hynix traces its roots to Gukdo Construction, founded in 1949, which moved into electronics in 1983 as Hyundai Electronics, an arm of the Hyundai empire.

The Asian financial crisis of the late 1990s brought disaster. Under an IMF-backed restructuring of the Korean economy, Hyundai absorbed rival LG's semiconductor business, creating a giant that promptly buckled under its own debts.

Salvation came in stages.

Renamed Hynix Semiconductor in 2001, a contraction of "high" and "electronics", the firm cut jobs, shed assets and split from Hyundai. Profits returned, but the violent swings of the DRAM market left it perpetually exposed.

Starved of capital, it was rescued in 2012 by the telecoms conglomerate SK Group, becoming SK hynix. The takeover proved decisive. SK Group poured money into high-bandwidth memory, then a costly and unprofitable technology that few believed in.

Today it has become the scarcest commodity in AI computing. And the firm employs nearly 46,900 people.