SK Hynix Drops Solidigm's Nasdaq IPO After Korean Regulators Object

SK Hynix has shelved plans to list Solidigm, which holds the NAND and SSD business it bought from Intel in 2021, on Nasdaq. It disclosed the decision on the morning of October 23 in Seoul, the evening of October 22 in New York.

The company cited capital market conditions and its share price trend. The pre-IPO round with outside investors was halted as well.

The timing says more than the stated reason. Four days earlier, the head of the Financial Supervisory Service (FSS) told parliament the plan broke the rules.

Reported valuations for Solidigm vary by source. Seoul Economic Daily cited forecasts of up to $150 billion, while other reports put it at $100 billion.

Regulators Named the Company

FSS Governor Lee Chan-jin spoke at a parliamentary audit on October 19. "Both the FSC and the FSS take the view that it runs afoul of the split listing rules."

On October 22, Financial Services Commission (FSC) Chairman Lee Eok-won took the same line. He said Solidigm's U.S. listing falls under the rules, and that parents SK Square and SK Hynix must protect their shareholders.

The rules took effect on August 3 and in principle bar listings of split-off subsidiaries, including listings abroad. An exception needs shareholder approval, and the parent's vote in that ballot is capped at 3%.

Analysts say regulators would struggle to block an overseas listing directly. The company withdrew without waiting for a binding ban; the deciding factor was a named warning from two agency heads, not a legal instrument.

Korea Read It as a Win for Shareholders

The market did not read the decision as lost funding. It read it as protection for existing shareholders.

The Kospi fell more than 4% on Friday morning after the U.S. chip sell-off, then reversed to close up 0.3% at 5,550.30. SK Hynix fell as much as 4.2% early and ended up 4.42% at ₩1,277,000 (about $963).

The Math of a Separate Listing

Shareholders objected on two counts. New shares sold by the subsidiary dilute their indirect stake, and a separately traded subsidiary is valued inside the parent at a discount.

The 30% is an assumption; real discounts vary by company and period. The math shows the direction: a separate listing can remove more value from the parent's price than it brings in as cash.

The same logic works in reverse. According to Goldman Sachs, SK Hynix's ADRs on Nasdaq, the U.S.-traded share certificates, trade at a 47% premium to the Seoul shares.

Using Goldman's figures: ADRs representing about 2.5% of circulating equity are worth $25.5 billion. At that price the company is worth roughly $1 trillion; at the Seoul price, about $690 billion.

The Fab Question Stays Open

Solidigm is based in the U.S. but makes its products only in Dalian, China. It wants to build its first fab on the U.S. East Coast, and a single fab costs tens of billions of dollars.

SK Hynix said it will keep reviewing other funding routes, including direct investment. With the IPO door closed, that burden shifts to the parent's own cash.

Below is the Nasdaq 100 over the past month; Goldman says SK Hynix could join the index if its ADR float grows.

SK Hynix's U.S.-traded ADRs over the past three months from today are shown below as well.

What It Means for Investors

• The market priced the decision as a win for shareholders but has not yet priced the funding route Solidigm lost.
• For SanDisk and Micron, which compete with Solidigm in enterprise SSDs, a strong rival's U.S. capacity timeline has become less certain.
• The October 28 earnings will give the first data on the spending schedule and funding source for the U.S. fab.
• Goldman's Nasdaq 100 scenario depends on the ADR float rising to 5%-10%; Korea's stance on new share issuance could narrow that path too.

Sources: The decision and regulator statements are based on October 19-23 reports by Seoul Economic Daily, Korea JoongAng Daily and the Korea Times; rule details on Korea Times (July 6) and Korea Herald (July 31) reporting. Solidigm's valuation and IPO size are press estimates that differ across sources. The ADR premium and index math come from a Goldman Sachs note reported by Investing.com; the earnings date from SK Hynix's announcement. The 30% discount in the example is hypothetical.