SK Hynix Earnings Beat Forecasts as HBM4 Drives an 80% Margin and Record Profit

Key Takeaways

• SK Hynix reported record third-quarter revenue of KRW 104.62 trillion and operating profit of KRW 83.33 trillion, exceeding analysts’ forecasts.
• Its operating margin reached 80% as higher memory prices, server DDR5 sales and the production ramp-up of HBM4 boosted profitability.
• HBM4 is expected to overtake HBM3E in both shipments and revenue during the fourth quarter.
• Long-term supply agreements now cover more than half of the company’s planned production capacity for 2027 and 2028.
• SK Hynix plans approximately KRW 100 trillion in shareholder returns during 2026.

SK Hynix delivered record third-quarter results as surging demand for artificial intelligence memory pushed revenue above KRW 100 trillion for the first time and lifted its operating margin to an exceptional 80%.

The South Korean memory-chip manufacturer reported revenue of KRW 104.62 trillion for the three months ended September, representing growth of 32% from the previous quarter and 328% from a year earlier.

Operating profit climbed to KRW 83.33 trillion, up 38% sequentially and 632% year over year. Net income reached KRW 39.78 trillion, giving the company a net margin of 38%. Both revenue and operating profit set quarterly records.

The results also surpassed market expectations. The FnGuide consensus called for revenue of approximately KRW 98.23 trillion and operating profit of KRW 76.96 trillion. Net income, however, came in below the consensus forecast of KRW 61.29 trillion, partly reflecting foreign-exchange and investment-valuation effects.

SK Hynix Q3 2026 Earnings

The decline in net income from the second quarter came after unusually large investment-related gains lifted the previous period’s bottom line. Operationally, the company continued to expand at a record pace.

SK Hynix has now reported record quarterly revenue and operating profit for six consecutive quarters, highlighting the strength of the AI-driven memory cycle.

HBM4 Becomes the Main Growth Engine

HBM4 was a central contributor to the quarter’s performance. Shipments of the next-generation high-bandwidth memory product entered full-scale production during the period, while sales of server DDR5 memory also increased sharply.

High-bandwidth memory is used alongside AI accelerators to move large amounts of data between processors and memory at high speed. Demand has increased as cloud providers and technology companies deploy increasingly powerful AI servers.

SK Hynix expects HBM4 to surpass HBM3E in both shipment volume and revenue during the fourth quarter, establishing the newer product as its primary HBM offering.

To meet demand, the company plans to ramp its M15X fabrication facility to maximum capacity by the end of 2026. It will also increase the proportion of DRAM produced with its sixth-generation 10-nanometer-class, or 1c, manufacturing process.

The transition to HBM4 is strategically important because the product offers higher bandwidth and greater energy efficiency than previous generations. It is also more technically complex to manufacture, supporting higher prices and margins for suppliers capable of producing it at scale.

AI Demand Lifts Conventional Memory Products

The AI boom is benefiting more than SK Hynix’s HBM business. Demand for conventional server memory and enterprise storage products also strengthened during the quarter.

Server DDR5 sales increased as data-center operators added computing capacity, while the company expanded shipments of enterprise solid-state drives built with 321-layer TLC NAND.

SK Hynix intends to increase the share of its 321-layer NAND process to more than half of its South Korean production capacity during the fourth quarter. The company expects this shift to support greater sales of high-capacity enterprise SSDs.

These products are used to store and process the large datasets required to train and operate AI models. The expansion of AI infrastructure is therefore increasing demand across multiple categories of the memory market, rather than benefiting HBM alone.

Long-Term Agreements Improve Revenue Visibility

SK Hynix has signed long-term agreements with 14 major customers, including global cloud service providers. The volume covered by these contracts represents more than 50% of the company’s planned production capacity for 2027 and 2028.

The agreements include pricing mechanisms that adjust within predetermined ranges according to market conditions. This structure should give SK Hynix greater revenue visibility while allowing the company to benefit from favorable pricing conditions.

It also reduces some of the volatility traditionally associated with the memory industry, where periods of aggressive capacity expansion have previously led to oversupply and falling prices.

Management said it would continue expanding capacity but would adjust the timing and scale of investment based on customer demand, product competitiveness and expected returns.

The company plans to accelerate investment as the first phase of its Yongin semiconductor cluster begins full-scale operations in 2027. However, maintaining supply discipline will be critical if SK Hynix wants to preserve its elevated margins.

Cash Position Strengthens

The record profit significantly strengthened SK Hynix’s balance sheet.

Cash and cash equivalents increased by KRW 26.5 trillion during the quarter to KRW 114.5 trillion. Borrowings declined by KRW 2.8 trillion to KRW 15.8 trillion, leaving the company with net cash of approximately KRW 98.7 trillion.

The stronger financial position gives SK Hynix more flexibility to finance HBM capacity, advanced manufacturing processes and new production facilities without relying heavily on additional debt.

It also supports the company’s expanded capital-return program.

SK Hynix Plans KRW 100 Trillion in Shareholder Returns

SK Hynix plans to return approximately KRW 100 trillion to shareholders during 2026, including at least KRW 30 trillion in cash dividends and more than KRW 60 trillion in share repurchases and cancellations.

The board approved a third-quarter dividend of KRW 14 trillion, equivalent to KRW 20,000 per share. The payment includes a regular KRW 10,000 dividend and a KRW 10,000 special dividend linked to gains from the company’s investment in Japanese memory manufacturer Kioxia.

SK Hynix also approved a KRW 20 trillion share repurchase. Half of the repurchased shares will be cancelled, while the remainder will be used for employee compensation and excluded from the shareholder-return calculation.

The company said it intends to distribute at least 50% of free cash flow to shareholders and continue conducting share repurchases every quarter.

What Comes Next for SK Hynix?

The third-quarter results strengthen the argument that AI memory remains one of the most profitable segments of the semiconductor industry.

SK Hynix benefits from its early position in HBM, rising server-memory demand and long-term agreements that cover a substantial portion of future capacity. The transition to HBM4 could provide another growth phase as AI accelerator manufacturers adopt the next generation of memory technology.

The principal risk is that manufacturers respond to high prices by expanding capacity too aggressively. A slowdown in AI infrastructure investment, stronger competition from Samsung Electronics or manufacturing difficulties during the HBM4 ramp could also pressure future growth.

For now, however, the combination of constrained supply and strong AI demand is supporting record earnings. SK Hynix expects HBM4 to become its largest HBM product in the fourth quarter, while its contracted capacity provides unusually strong visibility into demand through 2028.

US-listed SK Hynix shares rose more than 6% in after-hours trading following the announcement, indicating that investors welcomed the record profit, HBM4 outlook and shareholder-return plan.

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