SK hynix early on Friday announced that it had decided to abandon plans for a potential initial public offering (IPO) of Solidigm, its U.S.-based enterprise SSD subsidiary, citing unfavorable stock market conditions and semiconductor share price trends. At the same time, SK hynix confirmed it plans to build a new fab for Solidigm in the U.S. to address growing demand for enterprise SSDs. Although an IPO could have helped finance a new fab in the U.S., SK hynix claims that its subsidiary’s expansion remains a priority.
Solidigm specializes in high-capacity data center SSDs based on floating gate 3D QLC NAND memory. As AI infrastructure deployments accelerate, demand for high-capacity storage increases, whereas Solidigm's existing manufacturing capacity is barely sufficient to address its projected needs. Consequently, SK hynix believes that Solidigm requires additional production facilities in the U.S., although it has yet to disclose the planned fab's capacity, investment requirements, or construction schedule. Such a facility could also strengthen SK hynix's American manufacturing footprint, which is important, given the current environment and on-shoring trends.
SK hynix had considered multiple options — including direct investment, a pre-IPO funding round, and IPO of Solidigm — to finance capacity expansion. An IPO would have enabled SK hynix to raise capital from outside investors without taking on more debt. Furthermore, it could have revealed the true value of the subsidiary, which SK hynix believes is not properly reflected in its own market capitalization. In addition to financing the expansion, the proceeds could have been used for dividends, share repurchases, and share cancellations.
However, SK hynix says that increased market volatility and the ongoing correction in semiconductor stocks have made an IPO less attractive. As a result, the company believes that current market conditions would prevent Solidigm from achieving a valuation that adequately reflects its growth prospects. Consequently, it has discontinued its review of both pre-IPO financing and an IPO, even though it will continue to evaluate alternative funding mechanisms.
The cancellation of the IPO raises an obvious question: why would SK hynix abandon a financing mechanism that could provide billions of dollars for Solidigm's expansion just as demand for enterprise SSDs is at a record high and set to increase further over the next couple of years? After all, constructing a modern 3D NAND fab requires tens of billions of dollars, and external financing could reduce the burden on SK hynix's balance sheet and preserve capital for other projects (e.g., new capacity elsewhere).
One possible explanation is Solidigm's exceptionally strong profitability. Micron's enterprise storage division recently reported a non-GAAP gross margin of 90%, and given Solidigm's unique position in the market (it controls 21.1% of the enterprise SSD market together with its parent company), its margins may well be higher as it sells exclusive products. If extraordinary margins are sustainable over the next two or three years, its operations could substantially boost SK hynix’s consolidated profitability and generate considerable cash for future investments. Given these circumstances, SK hynix could potentially finance Solidigm's U.S. manufacturing expansion through a combination of internally generated cash and debt even without diluting its ownership. Financing the entire project with cash alone may also be possible, even though such an approach would be less likely given the massive capital requirements of advanced semiconductor production facilities nowadays. In any case, it is natural for SK hynix to prefer retaining full ownership of a highly profitable subsidiary to selling part of it at a valuation it considers inadequate.