SKHX Tracks SK Hynix Past Samsung as Korea's Most Valuable Company

Korea Has a New King

On Monday, June 22, SK hynix overtook Samsung Electronics to top the KOSPI by market value, ending a quarter-century reign and changing the No. 1 spot on Korea's exchange for the first time in 26 years. SK hynix's market cap pushed to roughly 2,080 trillion won — about $1.3 trillion — just ahead of Samsung's ~2,066 trillion won in common stock (Samsung Group stays larger once its preferred shares are counted). The shares closed at 2,919,000 won, up 5.6%, after touching a record 2,945,000 won intraday.

The wedge between the two is HBM. SK hynix holds about two-thirds of Nvidia's HBM4 orders and supplies HBM3E to Microsoft, while Samsung has spent the cycle wrestling with yield problems on the same parts. Over the past year SK hynix shares have multiplied several times over against a far smaller gain for Samsung — same industry tailwind, one company cornering it.

What the Perp Is Actually Pricing

SKHX doesn't trade the won. It tracks one share of SK hynix common stock, with the oracle converting the underlying KRW price to USD at the prevailing exchange rate. At about $1,943 the perp is long the Korean equity in dollar terms — and the won leg matters more than it looks. A weaker won trims the dollar move even when the Seoul tape is green; a stronger won amplifies it.

On a day SK hynix ran 5.6% in Seoul, the perp's +6.26% over 24h lines up cleanly, which tells you USD/KRW wasn't fighting the move this time. That's the tell to keep: when the equity print and the perp diverge, it's almost always FX doing the work, not a breakdown in the underlying bid.

The ADR in the SEC's Inbox

The timing of the milestone isn't a coincidence. SK hynix filed confidentially for a U.S. listing in March, and reporting points to SEC approval landing the week of June 22, with an ADR debut on Nasdaq possible as early as August. Sources put the raise as high as $14 billion, earmarked for AI-memory capacity.

The caveat traders should hold onto: SK hynix has not finalized the size, timing, or price, and the company has publicly tempered the certainty in some of the reports. This leg of the bid is anticipation, not a signed deal — which is exactly why a clean approval would matter and a delay would sting.

Where It Can Break

The whole re-rating rests on one assumption: that HBM stays a near-monopoly. SK hynix's grip on Nvidia's HBM4 orders is the load-bearing wall. Any credible sign that Samsung or Micron closes the yield gap — or that AI-accelerator demand cools — takes air out of both the equity and the perp at once.

The ADR is a second binary. A well-priced August book extends the story; a delay or a soft debut hands profit-takers a reason. At a $1.3 trillion market cap, a lot of the supercycle is already in the price, and the easy part of the re-rating is behind it. SKHX holders are buying continuation at a record, not a turn.