SK hynix Faces Governance Questions Over Potential Solidigm IPO

SK hynix, a major South Korean semiconductor company, is facing increased governance concerns as its U.S. subsidiary, Solidigm, ponders a potential pre-IPO fundraising and a future Nasdaq listing. This situation is reigniting debates in South Korea's capital market about the company's multi-layered shareholding structure and its implications for minority shareholders.

Reports suggest that Solidigm is contemplating raising between 5 trillion won (approximately $3.54 billion) and 10 trillion won (about $7.1 billion) in a pre-IPO round, with major investment banks such as Morgan Stanley and Goldman Sachs acting as underwriters. SK hynix stated in a regulatory filing that no final decision has been made and that they intend to provide an update by early next month.

Solidigm was formed following SK hynix's acquisition of Intel's NAND memory business for $8.8 billion in 2021, and has since become a crucial component of SK hynix's NAND business, seen as a possible U.S.-listed semiconductor asset. The proposal has drawn criticism from the Korea Corporate Governance Forum, which argues that the structure could create a five-layer shareholding chain, stretching from SK hynix's Chairman Chey Tae-won through SK Inc., SK Square, SK hynix, NAND Product Solutions, and finally Solidigm.

The forum expressed concerns about overlapping listings and the safeguarding of minority shareholder interests. They also highlighted that leading global semiconductor firms such as Nvidia and Taiwan Semiconductor Manufacturing Co. typically do not engage in subsidiary listings of this nature. Furthermore, they pointed out the capital-call structure involving affiliates like SK Telecom, SK Inc., and SK Innovation, suggesting that this aspect warrants closer scrutiny from investors.

Doubts have also arisen regarding the purpose of the financing. As of the end of the second quarter, SK hynix held around 88 trillion won in cash and cash equivalents, a 33.6 trillion won increase from the previous quarter, while its operating margin was approximately 76%. Investors are now debating whether the transaction is primarily aimed at raising capital or serving broader strategic and financial restructuring goals.

Opinions among brokerage firms are divided. Toss Securities believes that if a separate entity retains a portion of future earnings and cash flows, the transaction might be unfavorable for existing SK hynix shareholders. Conversely, Mirae Asset Securities argues that the move should be understood within the context of recovering investment made through the Intel NAND acquisition and securing funding for future investments, asserting that the impact of a partial stake sale on SK hynix's overall valuation may be negligible.

The investor concerns have been compounded by the stock's relative underperformance. From August 5 to August 13, Samsung Electronics rose by 6.8%, while SK hynix declined by 4.9%. The stock has also slipped about 46% from its June high, despite the growing demand for high-bandwidth memory used in Nvidia's AI systems. With no final decision announced, investors are now concentrating on whether SK hynix will proceed with a pre-IPO and potential Nasdaq listing of Solidigm, as well as how the company's board will tackle questions concerning shareholder value and governance.