SK hynix halts Solidigm listing plans

SK hynix ended its review of an initial public offering for Solidigm, its U.S.-based enterprise solid-state drive subsidiary, on Friday. The company cited unfavorable stock market conditions and recent volatility in semiconductor share prices as the primary reasons for the decision. The announcement arrived early on October 23.

The parent company confirmed that the unit will still build a new fabrication plant in the United States to meet rising demand for enterprise storage. However, SK hynix has not disclosed the facility's size, total cost, or a timeline for construction. The subsidiary specializes in high-capacity data center drives built on floating gate 3D QLC NAND memory.

The move comes as demand for high-capacity storage climbs alongside artificial intelligence infrastructure rollouts. Solidigm’s current manufacturing capacity is insufficient to cover expected future needs. A new American plant would also expand SK hynix's domestic manufacturing presence in the United States.

The company had previously considered several funding routes, including direct investment, a pre-IPO financing round, and a full listing. An offering would have provided outside capital without increasing debt. It could also have established a valuation that SK hynix believes better reflects the subsidiary's true worth compared to its own market capitalization.

SK hynix stated that current market conditions would prevent Solidigm from earning a valuation that fairly reflects its growth outlook. The company has concluded both its review of a pre-IPO financing round and a public listing. It will continue to explore other methods to fund the project.

The decision raises questions given that enterprise SSD demand is at record levels and a modern 3D NAND fab can cost tens of billions of dollars. Outside funding could have reduced the strain on SK hynix's balance sheet. Instead, the company may rely on internal cash and debt to pay for the expansion without surrendering ownership.

Solidigm holds a 21.1% share of the enterprise SSD market alongside its parent company. Micron's enterprise storage division recently reported a non-GAAP gross margin of 90%. If Solidigm maintains similar margins, the unit could generate substantial cash flow to support future investment needs.