Solidigm IPO Cancelled: SK hynix Self-Funds US Storage Plant

SK hynix told investors on Friday, October 23, that it will no longer take Solidigm public. The decision means the Korean chipmaker will keep 100% ownership of its US-based enterprise SSD subsidiary. The company cited unfavorable stock market conditions and recent trends in semiconductor share prices as the primary reasons for the change.

The move affects how the new US manufacturing plant will be financed. SK hynix confirmed it intends to build a new fab in the United States to meet rising demand for enterprise SSDs. However, the company has not disclosed the size of the facility, the total cost, or the start date for construction.

Solidigm specializes in high-capacity data center SSDs built on floating gate 3D QLC NAND memory. Demand for this storage is climbing as AI infrastructure rollouts accelerate. Currently, Solidigm's manufacturing capacity is barely sufficient to cover expected needs. A new American plant would also expand SK hynix's manufacturing footprint in the US, a move that aligns with the push toward domestic production.

The parent company had previously weighed several funding routes. These included direct investment, a pre-IPO funding round, and a full listing. An offering would have brought in outside capital without adding debt. It also could have reflected what SK hynix views as the true value of the subsidiary, which it believes is not fully captured in its own market capitalization.

SK hynix stated that greater market volatility and a correction in chip stocks reduced the appeal of an IPO. In the company's view, current conditions would prevent Solidigm from earning a valuation that fairly reflects its growth outlook. As a result, it has ended its review of both a pre-IPO financing round and a listing. It will continue to look at other ways to fund the project.

The decision comes as enterprise SSD demand sits at a record level and is expected to rise over the next couple of years. A modern 3D NAND fab can cost tens of billions of dollars. Outside funding could have eased the strain on SK hynix's balance sheet. One possible explanation for the reversal is Solidigm's strong profitability. Micron's enterprise storage division recently reported a non-GAAP gross margin of 90%.

Solidigm, which holds 21.1% of the enterprise SSD market along with its parent, may earn even higher margins by selling exclusive products. If such margins hold for the next two or three years, the unit could lift SK hynix's consolidated profits and generate substantial cash for future investment. This could allow SK hynix to fund the expansion through a mix of internal cash and debt without giving up any ownership.