SK Hynix Builds AI Infrastructure from Silicon to Systems

SK Hynix invests in RISC-V startup Semidynamics and builds a new AI memory plant, aiming to shape AI system architecture amid a booming memory market and a planned U.S. listing.

A strategic investment in European chip design and a landmark product launch are signaling SK Hynix's ambition to transcend its role as a component supplier. The South Korean memory giant is making a concerted push to shape the entire architecture of artificial intelligence systems, a move that coincides with a powerful upswing in its core business.

The company has taken a strategic stake in Barcelona-based startup Semidynamics, a developer working on the open RISC-V architecture. Semidynamics’s technology tackles the "Memory Wall," a fundamental bottleneck where data transport, not raw processing power, limits large language models and complex AI applications. By optimizing data flow at the architectural level, the partnership aims to significantly reduce the cost per token for AI inference. For SK Hynix, this marks a shift from merely supplying memory to influencing infrastructure from the board to the server rack.

This deeper foray into AI infrastructure is backed by massive capital commitments. SK Hynix is constructing a new advanced packaging plant in Cheongju, tailored for AI memory like HBM, at a cost of $12.9 billion. To help fund this expansion, the company is pursuing a U.S. listing. A confidential application for an ADR listing was filed with the SEC in late March, with the potential to raise up to $14.4 billion in the second half of the year.

The strategic pivot is unfolding against a backdrop of exceptional strength in the memory market. On April 8, SK Hynix began shipping its new Client SSD PQC21 to Dell Technologies, the world’s first storage product based on its 321-layer QLC NAND technology. Market research firm IDC projects QLC NAND’s share of the global client SSD market will surge from 22% last year to 61% by 2027. The pricing environment is highly favorable: TrendForce forecasts NAND Flash contract prices will jump 70-75% in the second quarter of 2026, with NAND margins for Samsung and SK Hynix estimated at 40-50% in the first half of 2026.

Analysts are raising their targets in response. KB Securities lifted its price target to 1.9 million won from 1.7 million, citing accelerated profit growth from AI-driven demand and structurally rising chip prices. SK Securities increased its target to 2 million won. Despite the rally, KB Securities notes the stock remains undervalued, trading at a forward P/E of around 3.1.

Market sentiment is buoyant. Foreign investors are returning to Korean semiconductor stocks, shifting from a structural underweight to an active overweight position, partly driven by the Bank of Korea's steady interest rate decision. The stock gained approximately 3.7% in recent trading and now stands about 51% above its level at the start of the year.

Two additional developments provide further support. South Korea's financial regulator has decided to allow leveraged single-stock ETFs based on Samsung Electronics and SK Hynix, a first for the local market, which is expected to attract additional fund inflows.

Upcoming quarterly results will quantify the financial firepower for these ambitious plans. The FnGuide consensus estimates for Q1 2026 forecast revenue of 51.19 trillion KRW and operating profit of 35.91 trillion KRW. Hana Securities is slightly more optimistic, projecting 53.50 trillion KRW in revenue and 36.90 trillion KRW in operating profit.