SK hynix halts its Solidigm IPO plan, and its shares rise 4.4%

If you own a few SK hynix shares, through Korea’s KOSPI or the company’s Nasdaq-listed shares, Friday brought welcome news. The SK hynix Solidigm IPO plan is on hold. Solidigm, the US storage company SK hynix owns, said on 23 October that it has halted its review of a pre-IPO funding round and an IPO. An IPO, or initial public offering, is when a company first sells its shares to the public on a stock market.

This matters beyond one company. Solidigm needs money to grow during an AI-driven shortage of memory chips. Korean regulators, meanwhile, are drawing a firmer line on how big groups raise that money without leaving their own small shareholders worse off.

What is Solidigm, and what SK hynix decided

Solidigm makes NAND flash, the memory chips inside SSDs, the fast storage drives in laptops and data centres. It is based in San Jose, California, and grew out of Intel’s old NAND and SSD business. SK hynix agreed to buy that business in 2020 for about US$9 billion and completed the deal in two steps, in December 2021 and March 2025.

In September, Reuters reported that a Solidigm IPO could raise about US$15 billion at a value of up to US$150 billion, as early as 2027. Bloomberg described it as a possible US$10 billion listing. The company never confirmed a figure.

Now SK hynix says the review has stopped, citing capital-market conditions and share-price trends. It added that the decision “does not reflect any change in Solidigm’s growth prospects or investment needs”, and that it will keep looking at funding options and value for shareholders.

Why ‘double listing’ made shareholders nervous

A double listing is when a parent company is already on the stock market and then lists one of its own units separately. Think of owning a slice of a whole pizza, and then the best topping is sold off as its own pizza. Your slice still exists, but your share of that topping gets thinner. Investors call this dilution.

On 19 October, the head of Korea’s Financial Supervisory Service said the plan conflicted with duplicate-listing rules. On 22 October, the chairman of the Financial Services Commission told parliament that the listing fell under the dual-listing guidelines. That meant SK hynix and its parent SK Square would have to meet five duties to protect shareholders, including an impact study, a board vote and full disclosure.

Regulators warned; they did not formally block anything. Korean media and industry sources still see those warnings as a big reason for the decision.

SK hynix stock reversed course on the news

SK hynix stock fell as much as about 3% early on 23 October, then closed up about 4.4% at 1,277,000 won. The wider KOSPI index ended up 0.3% after falling more than 4% during the day. Chip stocks have fallen sharply in recent weeks, so the rebound suggests investors welcomed the news.

The open question is money. Solidigm makes all its NAND in Dalian, China. It has been weighing its first US NAND factory, with upstate New York the lead candidate, according to Reuters and JoongAng Daily. SK hynix says “no specific plans have been confirmed”. That factory now needs another route: SK hynix’s own cash, loans, partners or government support. We may learn more when SK hynix reports quarterly results on 28 October.

What it means for your next Solidigm SSD

Our analysis: nothing changes for buyers soon. AI data centres, not this IPO, are pushing SSD prices. Enterprise SSD contract prices rose about 80% in the first quarter of 2026, according to TrendForce. It is the same AI storage pull that showed up in Western Digital’s latest earnings.

And if new factories get money more slowly, supply could stay tight for longer, and drive prices could stay high. If you need an SSD soon, buy the size you need and compare price per terabyte.

Protecting small shareholders is worth a slower path

On balance, halting the SK hynix Solidigm IPO looks like a fair trade. Korea is showing that a group cannot easily list a valuable unit without first looking after the people who already own the parent company. That builds trust, and trust lowers the cost of money over time.

The cost is speed. A shortage is exactly when new factories help most, and Solidigm now has one less obvious way to pay for one. “Halt the review” is not “never”, though; the door stays open. Much like TSMC planning carefully through its record AI quarter, the wiser path may be slower but steadier.

Watch 28 October. If SK hynix explains how Solidigm’s next factory will be paid for, this pause will look like good governance, not a missed chance.