SK Hynix Sinks as CXMT's 4F-Square Gambit Collides With Doubts Over AI Spending
Published on 10/13/2026 at 10:20 | Editorial boerse-global.de
A broad selloff across semiconductor equities dragged SK Hynix sharply lower on Tuesday, with the South Korean memory maker's shares shedding 10% to trade at 1,443,000.00 KRW intraday. The retreat came amid a global wave of chip-stock selling that rippled from Wall Street into Asian trading floors, compounded by mounting unease over the scale and financing of artificial intelligence infrastructure.
Two distinct concerns have converged to unsettle investors. The first is competitive: China's ChangXin Memory Technologies (CXMT) is inching closer to the established memory giants. The company's president, Cao Kanyu, has unveiled progress on a novel memory cell architecture known as 4F-Square, with plans to bring a corresponding server-memory product to market before the end of 2026 and to ramp up DDR5 server-memory shipments. Both SK Hynix and Samsung Electronics are pursuing the same structure, but CXMT's aggressive timeline has stoked fears of intensifying price competition and margin erosion in standard and server DRAM.
The second worry centers on whether the torrent of global spending on AI infrastructure can be sustained. Market participants are increasingly questioning the financing structures behind the enormous sums technology companies are channeling into data centers and memory capacity. When a figure of Broadcom CEO Hock Tan's stature publicly flags caution on AI project financing, the market takes notice — and Korean chipmakers felt the sting immediately. Reports of international investors trimming exposure to South Korean technology names, alongside ETF reallocations and broader macroeconomic jitters, added to the selling pressure.
Analysts See Record Results Despite the Turmoil
Even as the stock wobbles, sell-side analysts are keeping the faith in SK Hynix's core operating business. Hana Securities reaffirmed its buy rating on Tuesday with a price target of 3.6 million KRW, projecting third-quarter 2026 revenue of 99.2 trillion KRW and operating profit of 77.9 trillion KRW. SK Securities also maintained its "Buy" call the same day, holding its target at 4 million KRW and forecasting an operating result of 79.74 trillion KRW for the same quarter. Meritz Securities had already nudged its target up to 3.2 million KRW on Monday, penciling in an operating profit of 80.1 trillion KRW. The consensus, for now, is that the operational core remains untouched by the market turbulence.
Should investors sell immediately? Or is it worth buying SK Hynix?
The longer-term question is whether SK Hynix can defend its technological leadership and margin strength in advanced server memory against a rising challenger. The company's edge has rested on a commanding position in complex memory chips essential for compute-intensive server applications. CXMT's 4F-Square push puts that dominance under scrutiny. Should the technology gap narrow faster than anticipated, SK Hynix's pricing power could come under pressure sooner than models assume.
Yet the optimistic case has merit. Developing new cell structures like 4F-Square is a manufacturing challenge of the highest order. It typically takes considerable time before rivals achieve reliable yields in mass production and clear the stringent qualification hurdles demanded by global server customers. If fears about data-center investment appetite prove overblown, demand for high-end memory modules should remain robust — giving SK Hynix room to preserve its pricing leadership and sustain a high-margin server business.
Solidigm IPO Prep and a Loosened US Share Supply
Beyond the daily market drama, investors are watching strategic moves at the group level. Bloomberg reported Monday that US subsidiary Solidigm has mandated Goldman Sachs and Morgan Stanley as lead underwriters for a potential US initial public offering next year. The listing could raise roughly $10 billion. SK Hynix, however, made clear that no final decision on an IPO has been taken. The company stated on October 1 that no resolutions regarding Solidigm's capital plans have been reached, and that all financing options continue to be evaluated with an eye on long-term corporate value and shareholder interests.
Separately, the 90-day lockup period for SK Hynix's American depositary receipts expired on October 7, according to filings with the US Securities and Exchange Commission. While that could in principle open the door to further issuance, no such step has been announced by the company.
The Bear Case: Fading Capex and Premature Competition
The pessimistic scenario rests on two core risks: a fading investment wave and competition arriving ahead of schedule. If doubts about the profitability of massive AI spending prove justified, cloud operators and technology groups are likely to rein in budgets for expensive memory hardware. In such an environment, lower purchase volumes would hit an industry that has traditionally been highly sensitive to cyclical demand swings. In parallel, an expansion of Chinese supply looms. Should CXMT genuinely deliver competitive DDR5 server modules by the end of 2026, pricing pressure in the memory market would intensify markedly. Even if high-end niches remain protected for a while, customers shifting toward alternatives on a broader front could weigh on revenue. Combined with reticence from large foreign institutional investors, the downtrend could accelerate.
Chart Levels Hold the Key
Technically, the battle lines are drawn at the 200-day moving average of 1,448,931.23 KRW. As long as the stock holds above that threshold, the long-term uptrend remains formally intact despite Tuesday's drop. A decisive break below, however, would likely amplify selling pressure and trigger further waves of liquidation. The next operational checkpoint is the end of 2026, when it will become clear whether CXMT can actually mass-produce its promised server memory. The decision on Solidigm's capital structure also remains a key gauge of the group's strategic direction.
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