SK Hynix (SKHY) Just Pulled Off the Biggest Foreign IPO in US History

TL;DR

• SK Hynix raised $26.5 billion on July 10, the biggest foreign IPO in US history, topping Alibaba's 2014 record.
• Priced at $149, opened around $170, closed day one at $168.01. Up 13%.
• The book was more than 7x oversubscribed. Institutions didn't buy this deal, they fought over it.
• Temporary ticker SKHYV becomes SKHY on July 13. US retail now has a second liquid way to own the HBM boom, and Micron's stock already paid the price for the competition.

The Numbers Behind The Flex

SK Hynix's raise against history's biggest foreign US listings. Alibaba held the record for twelve years. It's gone.

SK Hynix sold 177.9 million ADRs at $149 each and the market wanted seven times more than existed. The chairman went on CNBC and summed up the entire AI memory thesis in three words: "demand is enormous."

He's not spinning. SK Hynix is one of exactly three companies on Earth that matter in high-bandwidth memory, the chip bolted to every serious AI accelerator in every data center being built right now. Until Friday, US investors could own that oligopoly through Micron or through gray-market foreign shares your broker probably blocks. Now there's a clean Nasdaq ticker, and $26.5 billion of institutional money sprinted through the door on day one.

Why MU Holders Should Care

MU dropped hard the same week, and that's not a coincidence. For two years Micron collected an "only game in town" premium as the sole liquid US play on HBM. SKHY ended that monopoly on Friday, and part of Micron's multiple simply walked across the street. The full breakdown is in our MU earnings drop piece, but the short version: MU's selloff is about competition for investor dollars, not competition for memory orders. Both companies are sold out.

The bigger read: nobody raises $26.5 billion at 7x oversubscription into a bubble that's popping. Institutions just voted, with the largest check in foreign-listing history, that the AI memory shortage has years left to run. That's bullish for the whole complex, MU included, once the flows settle.

The Catch: Paper Is Coming

Day-one pops on IPOs measure underwriter conservatism, not value. And the supply overhead here is real:

• Lockup expirations are the scheduled event that hurts. Mark the calendar.
• SKUU and SKDD listings were expected to follow on July 13, adding more ways to trade the name and more paper in circulation.
• A $26.5 billion deal is enormous even in this market. Early flippers took a 13% gain in one day, and plenty more will take it in week two.

The Options Angle

Options on fresh IPOs typically list about a week after the debut, and when SKHY's chain opens, the IV will be priced like a meme stock at war.

• Skip the first two weeks of options entirely. Early IPO vol is a donation to market makers who have no historical data either and price accordingly.
• The trade I actually want: sell puts into the first real flush. Big IPOs retest their offer price far more often than people think. If SKHY revisits the $150s in the next couple of months, selling 30-to-45-day puts near $149 pays you handsomely to own the HBM oligopoly at the price institutions fought 7-to-1 to get.
• The long game: six-month calls after the lockup dip, assuming HBM pricing is still climbing by then. Buy the forced selling, not the euphoria.
• One consequence of this deal nobody priced at the time: listing in the US puts the company under SEC Rule 174 for 25 days, which legally silenced it on buybacks and dividends straight through its own record Q2 earnings on July 29. That window closes on August 4, and what it unlocks is worth understanding before you position around it.

Play It Or Skip It?

Play it, on weakness, never on pop days. The offer price of $149 is your magnet and your reference. Chasing $170 on day two makes you exit liquidity for the flippers. Getting paid to catch it near $149 makes you the house. Everything about this deal says the memory cycle is real; nothing about day-one euphoria says you need to pay up for it today.