KEY POINTS
- SK Hynix has filed for a roughly US$28 billion Nasdaq listing, the largest US debut since SpaceX and second only to it this year.
- Trading is expected to begin Friday 10 July under the ticker SKHY, once bookbuilding sets the final price, so US investors cannot buy the ADRs just yet.
- SK Hynix controls about 57% of the high-bandwidth memory market that AI servers depend on, with revenue up 198% and margins above 70%.
- The catch: shares have already run more than 250% this year to a US$1 trillion-plus value, so a lot of good news is priced in.
SK Hynix has filed to list on the Nasdaq and raise around US$28 billion, one of the biggest share sales the US market has ever seen. For investors who have watched the Korean memory giant power the AI boom from the sidelines, this is the moment they can finally own it directly. The stock is up more than 250% in 2026 alone. So is this fresh way into the hottest trade in tech worth chasing, or has the easy money gone?
Can US Investors Buy SK Hynix Right Now?
Not quite yet. SK Hynix is selling American Depositary Receipts, or ADRs, which are simply US-traded certificates that stand in for shares listed overseas. Ten ADRs will equal one ordinary Korean share, meaning the company is offering 177.9 million ADRs, representing 17.79 million underlying new common shares.
Trading is expected to begin on Friday, 10 July, under the ticker SKHY, once bookbuilding sets the final price. The target was trimmed to roughly US$28 billion, down from the US$29 billion floated in late June, and Korean shares slipped on the news.
We read that cut as a pricing adjustment rather than fading interest, since orders have still topped the ADRs on offer, with about US$7 billion from anchor investors Baillie Gifford, Coatue, and Situational Awareness Partners. In our view, that heavy early demand is a double-edged sword. It signals real appetite, but it also raises the risk the ADRs pop on day one, leaving late buyers chasing.
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Why SK Hynix Is the AI Memory King
Here is what makes this listing matter. SK Hynix dominates high-bandwidth memory (HBM), the fast memory that Nvidia AI chips cannot run without. It holds roughly 57% of that market, well ahead of rivals Samsung and Micron.
That may sound technical, but the takeaway is simple: the more AI data centres the world builds, the more of SK Hynix’s chips it needs. First-quarter revenue jumped 198% from a year earlier, and operating margins topped 70%, which is huge for a chipmaker.
The company has also sold out its entire 2026 memory supply, giving it rare pricing power in an industry famous for boom-and-bust swings. This suggests the current earnings strength is a multi-year setup, not a one-quarter spike. It plans to spend the money raised, plus a separate 100 trillion won (around US$64 billion), on new Korean factories.
One caveat: SK Hynix leads in HBM but sits second to Samsung in the broader memory market. The “king” crown fits the AI-critical part, not every chip it makes.
The Investor’s Takeaway: Buy the Listing or Wait?
The demand behind this trade is real, not hype. Samsung reports on Tuesday, 7 July, and is tipped to post an 18-fold jump in quarterly profit, while memory prices have spiked, with DRAM up 44% and NAND up 53% in a single quarter. That backs up the story that the AI memory boom still has legs.
The concern is price. After a run of more than 250% to above US$1 trillion in value, a lot of good news is already baked in, and index-fund buying around the listing can fade once the excitement cools.
We believe the safer approach is to watch how the ADRs trade in their first week rather than pile in at the open. The AI memory boom looks genuine, but paying any price for it is how investors get hurt.
