SK hynix Self-Funds U.S. SSD Fab After Scrapping Solidigm IPO

SK hynix ended its review of an initial public offering for Solidigm on October 23, choosing to keep the U.S. enterprise storage unit 100% private. The company cited unfavorable stock market conditions and a recent correction in semiconductor share prices as the primary reasons for the pause. This decision allows the South Korean firm to retain full ownership of its fastest-growing segment.

The parent company confirmed that it will still build a new fabrication plant in the United States for Solidigm. The facility is designed to meet rising demand for high-capacity data center SSDs built on floating gate 3D QLC NAND memory. SK hynix has not yet disclosed the size of the new fab, the total construction cost, or a timeline for when the plant will begin operations.

Solidigm currently holds a 21.1% share of the enterprise SSD market alongside its parent. The unit faces a capacity shortfall as AI infrastructure rollouts accelerate demand for high-volume storage. A new American plant would also expand SK hynix's domestic manufacturing footprint, a factor that carries weight in the current push for U.S. chip production.

The company originally considered a pre-IPO funding round or a full listing to raise capital without adding debt. Management believed an offering would have better reflected the subsidiary's true value, which they argued is not fully captured in SK hynix's own market capitalization. Proceeds from a sale might also have been used for dividends, share buybacks, or share cancellations.

Instead, SK hynix pointed to greater market volatility as the reason to halt the process. The company stated that present conditions would prevent Solidigm from earning a valuation that fairly reflects its growth outlook. It has ended its review of both financing routes but will continue looking for other ways to fund the project.

The move may be driven by Solidigm's strong profitability. Micron's enterprise storage division recently reported a non-GAAP gross margin of 90%. If Solidigm achieves similar margins, the unit could generate substantial cash internally over the next two or three years. This would allow SK hynix to pay for the U.S. expansion through a mix of internal cash and debt without selling any stake in the subsidiary.