SK Hynix Hits a Technical Milestone as Record Earnings Fuel a $35 Billion Cash Pile

SK Hynix posts record Q1 2026 revenue of 52.58 trillion won, achieves HBM4-ready hybrid bonding breakthrough, and holds 35 trillion won in net liquidity amid AI-driven demand.

The South Korean memory giant just proved it can do two things at once: push the physical limits of chip engineering while minting money at a pace that would make most semiconductor peers envious. On Wednesday, SK Hynix confirmed it had successfully verified a 12-die HBM stack using advanced hybrid bonding — a manufacturing technique that eliminates traditional micro-bumps and allows more memory layers to be stacked at the same height. The breakthrough is a prerequisite for the upcoming HBM4 and HBM5 standards, and management says yields are already approaching mass-production readiness.

That technical achievement sits atop a financial foundation that has rarely looked stronger. For the first quarter of 2026, SK Hynix posted revenue of 52.58 trillion won — the first time it has crossed the 50 trillion-won threshold. Operating profit hit 37.61 trillion won, nearly doubling from the prior quarter, while the operating margin reached 72 percent. Net margin clocked in at 77 percent. The numbers were driven by surging demand for high-bandwidth memory chips, server DRAM, and enterprise SSDs destined for AI data centers.

The cash generated from those record margins has been put to aggressive use. SK Hynix now holds net liquidity of roughly 35 trillion won, allowing it to fund expansion plans without taking on additional debt. Capital is being directed toward the M15X fab, the Yongin semiconductor cluster, and additional EUV lithography equipment. The company is also in talks with Nvidia about a potential partnership in the area of "Physical AI," though details remain under wraps.

But the market's reaction to all this good news has been curiously measured. Shares closed at 1,293,000 won on Wednesday, down about half a percent and hovering just below the 52-week high of 1.3 million won. The stock has still rallied roughly 91 percent since the start of the year, but the latest move reflects growing unease about the sustainability of the AI capex cycle. BNK Investment & Securities became the first major Korean investment bank to downgrade the stock this year, cutting its rating to "Hold" with a price target of 1.3 million won. The firm cited potential cuts to cloud providers' capital budgets and questions about the profitability of the next HBM generation.

Nomura takes a different view. The Japanese bank maintains a price target of 2.34 million won, arguing that long-term supply contracts will stabilize earnings. It forecasts DRAM prices rising 51 percent quarter-on-quarter in Q2 and NAND prices climbing 65 percent.

The AI boom is creating ripple effects beyond SK Hynix's own bottom line. Because so much production capacity has been diverted to HBM and enterprise memory, standard chips for consumer devices have become scarce. Industry reports point to price increases of up to 60 percent for memory modules. Analysts expect smartphones, laptops, and tablets to cost 10 to 20 percent more on average in 2026. A meaningful easing in memory supply is not anticipated before 2027.

Goldman Sachs has gone so far as to suggest that Samsung and SK Hynix combined could surpass Nvidia in revenue by 2027. For now, SK Hynix is focused on executing its own roadmap. The hybrid bonding verification is a critical step, and the company's test cycles are reportedly running ahead of schedule compared with earlier generations.

Trading volumes could get a jolt in the weeks ahead. South Korea is set to launch its first 2x leveraged single-stock ETFs on SK Hynix on May 22, 2026. The instruments are expected to amplify activity from both institutional and retail investors, adding a new layer of volatility to a stock that already has plenty.