SK hynix self-funds US SSD fab after shelving Solidigm IPO

SK hynix announced on Friday, October 23, that it will not take its U.S.-based subsidiary Solidigm public. The company cited unfavorable stock market conditions and a recent downturn in semiconductor share prices as the primary reasons for abandoning the listing plans.

Despite halting the offering, the South Korean chipmaker confirmed its intent to construct a new fabrication plant in the United States. The facility is designed to meet increasing demand for enterprise solid-state drives. SK hynix has not yet disclosed the facility's size, total cost, or a timeline for construction.

Solidigm specializes in high-capacity data center SSDs built on floating gate 3D QLC NAND memory. Demand for this storage technology is climbing rapidly as companies expand their AI infrastructure. Current manufacturing capacity at the unit is nearly maxed out relative to projected needs. A new U.S. plant would also expand SK hynix's domestic manufacturing footprint.

The company previously evaluated several funding strategies, including direct investment, pre-IPO financing, and a full stock listing. An IPO would have provided outside capital without increasing debt. It also would have allowed SK hynix to showcase the value of Solidigm, which management believes is currently understated in its own market capitalization.

Market volatility and an ongoing correction in chip stocks reduced the attractiveness of a public offering. SK hynix concluded that current conditions would prevent Solidigm from achieving a valuation that reflects its growth outlook. The company has ended its review of both pre-IPO financing and a listing but will continue exploring other funding methods.

The decision comes as enterprise SSD demand hits record levels. Building a modern 3D NAND fab typically costs tens of billions of dollars. Outside funding could have reduced the financial strain on SK hynix's balance sheet. However, Solidigm's profitability may provide an alternative path to funding.

Micron's enterprise storage division recently reported a non-GAAP gross margin of 90%. Solidigm, which holds a 21.1% share of the enterprise SSD market, may achieve similar or higher margins. If these profit levels persist, the unit could generate substantial cash flow for SK hynix. The parent company may fund the expansion using internal cash and debt while retaining full ownership.