SK Hynix Just Pulled Off the Biggest Foreign IPO in US History. The Memory Bull Case Is No Longer a Debate.

Two weeks ago the crowd was calling a top on memory and dumping it into a bear market. On Friday SK Hynix priced its US ADRs at 149 dollars, opened at 170 for a 14% pop, and raised 26.5 billion dollars, the largest listing by a foreign company in US history, topping even Alibaba in 2014. When the HBM leader debuts this hot and the chairman says demand is "enormous," the memory bull case stops being a debate and starts being a fact.

What the debut actually proved

You do not price a 26.5 billion dollar deal, see it trade up 14% on day one, and beat SpaceX's debut pop unless institutional demand for memory exposure is overwhelming. The same money that was supposedly fleeing the sector two weeks ago just lined up to buy the purest HBM play on earth at a premium. Price action during a panic lies. A fully subscribed mega-IPO does not.

The number that matters: undersupplied through 2030

Here is the line that reframes everything. SK Hynix says memory stays undersupplied through 2030. Samsung just pulled its Yongin fab forward to 2029 to try to catch up. Jensen Huang keeps reiterating that AI demand is not slowing. If the three companies who actually make the chips are all telling you supply cannot meet demand for another four-plus years, the "glut" bear case was a sentiment story, not a supply story.

How I am positioned

I hold $Micron Tech(MU.US) as my core US memory play, cost basis around 1,050, and it sits near 979 after the bounce. I did not panic-sell the bear-market leg and I am not chasing this SK Hynix euphoria either. I hold the core and add on pullbacks. For the SK Hynix name itself, I want to see a few weeks of trading before touching a stock that just IPO'd into a frenzy. IPO-day prices are the worst entries in the market.

The one thing that would change my mind

This is a landmine week: US CPI and five big banks report Tuesday, Warsh testifies, and Iran just declared Hormuz closed. Any of those could trigger a risk-off flush that drags even a validated memory trade down for a session or two. I keep the core, keep some dry powder for that flush, and let the undersupply story play out over quarters, not headlines. The multi-year thesis just got its loudest confirmation yet.

Not financial advice, just reading the debut.