SK hynix Cancels Solidigm IPO to Bankroll New U.S. Storage Plant

SK hynix scrapped plans to take its Solidigm subsidiary public, opting instead to use internal funds to build a new storage fabrication plant in the United States. The decision was announced early Friday, October 23, citing unfavorable stock market conditions and a recent slump in semiconductor share prices. The company stated that current volatility prevented Solidigm from securing a valuation that it believed fairly reflected its growth outlook.

The move marks a shift in strategy for the enterprise SSD unit. SK hynix had previously considered several financing routes, including a pre-IPO funding round and a full listing. An initial public offering would have allowed the parent company to raise outside capital without increasing debt. It also would have allowed SK hynix to demonstrate the standalone value of Solidigm, which the parent argues is not fully captured in its own market capitalization. Proceeds from a listing could have been directed toward dividends, share buybacks, or share cancellations.

Despite canceling the listing, the company confirmed it will proceed with the U.S. fab construction. The new facility is designed to meet rising demand for enterprise solid-state drives, particularly as AI infrastructure rollouts accelerate. Solidigm currently produces high-capacity data center SSDs using floating gate 3D QLC NAND memory. Its existing manufacturing capacity is nearly maxed out against projected demand. A new American plant would also expand SK hynix's domestic manufacturing footprint in the U.S., a factor that carries weight in the current push for local production.

SK hynix has not yet disclosed the size, cost, or construction timeline for the new facility. The company said it will continue exploring other funding methods for the project. The reversal occurs at a time when enterprise SSD demand is at record levels and is expected to rise further over the next two years. A modern 3D NAND fab typically costs tens of billions of dollars, meaning outside funding could have eased pressure on SK hynix's balance sheet.

Solidigm's strong profitability may be a key factor in the decision. The unit, along with its parent, holds a 21.1% share of the enterprise SSD market. Micron's enterprise storage division recently reported a non-GAAP gross margin of 90%, suggesting Solidigm may earn similar or higher margins by selling exclusive products. If these margins hold for the next two to three years, the subsidiary could significantly boost SK hynix's consolidated profits and generate substantial cash flow.

This financial strength allows SK hynix to fund the expansion through a mix of internal cash and debt without selling ownership stakes. While paying for the entire project with cash alone is possible, it is less likely given the high capital costs of advanced chip plants. The company remains fully committed to the U.S. build, keeping the highly profitable subsidiary entirely in-house rather than selling a stake at what it considers a low valuation.