SK Hynix's Customers Are Funding Its Production Lines as the AI Memory Supercycle Accelerates

With all HBM capacity booked through 2026, SK Hynix saw 72% operating margin, plans huge bonuses, and races to expand fabs amid a historic supply gap.

When a chipmaker's order book is so full that major tech companies offer to finance its most expensive production equipment, the industry has entered uncharted territory. ASML's EUV lithography machines — each costing hundreds of millions of dollars — are now being funded by SK Hynix's own customers, who are effectively paying upfront to lock in dedicated capacity for high-bandwidth memory (HBM) chips. Every HBM3E and HBM4 slot for 2026 is already spoken for. The company says it has zero free capacity.

That scarcity is generating staggering numbers. SK Hynix posted a 405% year-on-year jump in operating profit for the first quarter of 2026, with an operating margin of 72% — a level that surpasses even Nvidia's. KB Securities projects that figure could reach 78.1% for the full year 2026, which would exceed the margins of both Nvidia and Saudi Aramco. The profit surge has triggered an unprecedented employee windfall: after scrapping the bonus cap, SK Hynix now channels 10% of operating profit to its 35,000 workers. Analysts estimate the bonus pool will hit 25 trillion won this year, translating to roughly half a million dollars per employee.

The company's good fortune is partly a mirror of its rival's struggles. Samsung Electronics narrowly averted an 18-day strike on May 21 after management and the union reached a last-minute deal. The resolution triggered a 6% rally in the KOSPI, strong enough to trigger a five-minute trading halt. SK Hynix, which together with Samsung forms a duopoly in AI memory, was a direct beneficiary. But the labor tensions at Samsung have also driven talent across the floor: around 200 Samsung employees have moved to SK Hynix in the past four months alone.

Wall Street is recalibrating its models at a furious pace. Nomura set a price target of 4,000,000 won — nearly double the current share price of 1,941,000 won. Citi raised its target to 3,100,000 won and lifted its 2026 earnings estimate by 8% and the 2027 estimate by 16%. UBS also increased its target, to 1,700,000 won, while boosting profit forecasts for the next two years. The broader narrative is a structural shift: memory chips are no longer a commodity business but a strategic growth market driven by artificial intelligence.

To meet demand, SK Hynix is pouring capital into expansion. Pilot production has begun at the new M15X fab in Cheongju, with mass production of HBM3E chips scheduled for November 2026. An even larger facility in the Yongin cluster is slated for completion by May 2027. Once fully ramped, it will add 350,000 wafers of monthly capacity, pushing the company's total to nearly one million wafers per month. Goldman Sachs now expects the worst supply gap in the memory market in 15 years.

The four largest technology companies globally plan to invest a combined $725 billion in 2026, and SK Hynix sits at the center of that spending wave. It is mass-producing the 192-GB SOCAMM2 module for Nvidia's Vera-Rubin platform and co-developing HBM4 with TSMC. The company has locked in long-term supply agreements running through 2028 and 2030, operating more like a contract manufacturer than a traditional chipmaker.

Investors are also being courted directly. SK Hynix plans to return up to 90 trillion won to shareholders in 2026 through dividends and stock buybacks. The next ex-dividend date is May 28. Meanwhile, the stock trades just 2% below its 52-week high from May 13, and the race is on to see whether SK Hynix becomes the second Korean company to reach a $1 trillion market capitalization. With customers helping to pay for the production lines, that milestone suddenly looks less like a stretch goal and more like a question of timing.