On April 23, 2026, SK Hynix delivered a financial report that captured the attention of the global semiconductor industry. For the first quarter of fiscal year 2026, ending March 31, the company posted revenue of KRW 52.58 trillion, up 198% year-over-year. Operating profit reached KRW 37.61 trillion, a 405% increase, while net profit soared to KRW 40.35 trillion, up approximately 398%. Quarterly sales surpassed KRW 50 trillion for the first time, and the operating margin climbed to 72%, marking the highest in the company’s history.
This earnings report was not an isolated event. Just a month later, on May 28, 2026, SK Hynix’s stock price continued its strong rally, reaching an intraday high of KRW 2,289,000—a 2.07% increase (+KRW 46,375) from the previous day’s close—setting another all-time high. The company’s market capitalization climbed further, firmly securing its place in the global "trillion-dollar club." Around the same time, Micron Technology’s market cap surpassed USD 1 trillion, and Samsung Electronics had already reached the milestone earlier—bringing together the world’s three leading memory giants at the trillion-dollar threshold. This signals that the valuation focus of AI infrastructure is shifting from GPUs to the memory sector.
Driving this shift is a structural transformation powered by artificial intelligence. High Bandwidth Memory (HBM), a critical component for AI accelerators, has become the main bottleneck for unleashing computing power. SK Hynix, with over a decade of strategic investment in this field, now occupies the most pivotal position in this transformation.
Performance Breakdown: The Underlying Drivers Behind Fourfold Profit Growth
Structural Shifts Behind the Numbers
SK Hynix’s financial results for Q1 2026 reveal profound changes underway across the memory industry.
From a revenue perspective, AI-related products have become the primary growth engine. The HBM product line, boasting the highest gross margin among all business segments, is a standout contributor to profits. The company disclosed that customer demand for HBM supply over the next three years far exceeds current capacity, extending order visibility into 2027 and beyond.
On the profit side, the operating margin of 72% indicates that SK Hynix has broken free from the cyclical volatility typical of traditional memory manufacturers. Historically, DRAM industry operating margins peak at around 50%-60%, and can turn negative during downturns. A 72% margin shatters this range, underscoring HBM’s pricing power and structural premium, which are reshaping the industry’s profit model.
Price Drivers: Broad-Based Gains in DRAM and NAND
The surge in profits is underpinned by a broad rise in memory prices. According to TrendForce, contract prices for general DRAM in Q2 2026 rose 58%-63% quarter-over-quarter, while NAND Flash contract prices increased 70%-75%. Previously, Q1 contract prices for general DRAM had already been revised upward to 93%-98%. Meanwhile, NAND prices for mobile applications jumped about 100% in the same period.
Looking at the price trends, the two categories show clear divergence. DRAM price hikes were front-loaded, with overall Q1 increases of 80%-90%, and Q2 gains narrowing to over 50%, reflecting a "volatile uptrend with moderating gains each quarter." NAND Flash, on the other hand, demonstrated stronger resilience, with Q2 price hikes exceeding 70%. The market consensus is that NAND will continue to rise in the second half of the year, with stability far surpassing DRAM.
The fundamental driver behind rising prices is not short-term supply-demand imbalance, but the three major manufacturers prioritizing capacity allocation for high-margin HBM and server DRAM, tightening supply for general-purpose products.
Performance Comparison: From Industry Lows to Historic Highs
SK Hynix’s profit trajectory in recent years is nothing short of remarkable. The company reported a net loss of about KRW 911.2 billion in 2023, rebounded to a net profit of roughly KRW 1,978.9 billion in 2024, and further grew to KRW 4,291.9 billion in 2025. Over three years, SK Hynix moved from deep losses to quarterly net profits exceeding KRW 40 trillion—a growth rate rarely seen in semiconductor industry history.
SK Hynix Net Profit Trends in Recent Years
| Year | Net Profit (KRW) | Trend Characteristics |
|---|---|---|
| 2023 | -911.2 billion | Industry trough, deep losses |
| 2024 | ~1,978.9 billion | Return to profitability, AI demand takes off |
| 2025 | ~4,291.9 billion | Rapid growth, HBM expansion |
| 2026 Q1 | ~40.35 trillion | Single quarter exceeds previous annual peak |
Data source: Company financial disclosures and MarketScreener
This "V-shaped" reversal clearly illustrates how the AI boom is reshaping the memory industry. Note: 2025 and earlier figures are annual data, while 2026 reflects only one quarter; direct comparison is not appropriate.
Building HBM Dominance: Market Share and Competitive Landscape
Absolute Market Leadership
SK Hynix currently holds a commanding lead in the global HBM market. According to Counterpoint Research, in Q4 2025, SK Hynix accounted for 57% of global HBM revenue, Samsung held 22%, and Micron 21%. SK Hynix had an even higher share in Q2 2025, with rivals gradually closing the gap.
Looking ahead to 2026, the HBM market is set for continued rapid growth. SK Hynix maintains its leadership, Samsung is regaining share thanks to HBM3E and HBM4, and Micron is aggressively expanding. The industry expects global HBM market size to grow from about USD 35 billion in 2025 to USD 100 billion by 2028. Maintaining a leading share in this fast-growing market means SK Hynix benefits from both "market expansion" and "share advantage."
Global HBM Market Share (Revenue, Counterpoint Research)
| Period | SK Hynix | Samsung Electronics | Micron Technology |
|---|---|---|---|
| 2025 Q2 | 64% | 15% | 21% |
| 2025 Q4 | 57% | 22% | 21% |
Data source: Counterpoint Research
Differentiated Competition with Samsung
SK Hynix and Samsung’s rivalry in HBM reflects two distinct technical paths and market strategies. Samsung, the world’s largest DRAM manufacturer, still leads the overall DRAM market. In Q1 2026, Samsung’s global DRAM market share stood at 38%, SK Hynix at 29%, and Micron at 22%.
However, in the lucrative HBM segment, SK Hynix’s first-mover advantage is clear. Samsung faced challenges in product qualification; its fifth-generation 12-layer HBM3E took longer to secure NVIDIA certification, during which SK Hynix locked in major orders. Still, once Samsung enters the supply chain, its massive capacity could significantly impact market share over the medium to long term.
Micron’s Aggressive Pursuit
Micron’s push in HBM is formidable. HBM now accounts for 26% of Micron’s total memory capacity, outpacing Samsung’s 23% and SK Hynix’s 18%. Micron reports that its HBM4 ramp-up is twice as fast as the previous HBM3 12-layer product, with yield improvements accelerating. The next-gen HBM4E is slated for mass production in 2027, targeting NVIDIA’s Vera Rubin platform.
Micron’s global expansion covers the US, Japan, Singapore, India, and Malaysia, with new capacity timelines stretching to 2030. In the capacity race, Micron is closing the gap with leaders at an aggressive pace.
NVIDIA: Deep Strategic Integration
From Supplier to Strategic Partner
SK Hynix’s relationship with NVIDIA has evolved far beyond a traditional supplier-customer dynamic. As early as 2020, SK Hynix stationed core engineering teams at NVIDIA’s US headquarters, working alongside GPU engineers on everything from chip architecture to thermal optimization. This deep embedded collaboration gave SK Hynix a unique first-mover advantage, making it the exclusive or preferred supplier of HBM3E for NVIDIA’s H100, H200, and B100 platforms.
The strategic value of this partnership is most evident on the Blackwell platform. Blackwell GPUs continue to sell briskly, most adopting HBM3E, and NVIDIA has significantly increased orders for SK Hynix HBM3E. For the next-generation Vera Rubin platform, Korean media reports SK Hynix has secured more than two-thirds of HBM4 orders.
Strategic Adjustment: Prioritizing HBM3E
In April 2026, SK Hynix made a notable strategic shift: it reduced its planned HBM4 shipments to NVIDIA by 20%-30% from original targets, while accelerating HBM3E capacity and supply.
The core reason is that NVIDIA’s Vera Rubin chips face challenges in advanced process technology, yield control, and packaging, delaying product introduction and reducing short-term demand for HBM4. SK Hynix is prioritizing HBM3E production resources to ensure timely delivery for key customers and avoid premature large-scale HBM4 investment amid uncertain demand.
From a business logic perspective, this is a classic "trading short-term efficiency for long-term certainty" strategy. It also highlights a key fact: SK Hynix’s product cadence is tightly coupled to NVIDIA’s, forming deep interdependence.
Customer Concentration: Structural Risk Not to Ignore
This deep integration brings substantial commercial rewards, but also structural risks. Multiple Korean media outlets report that NVIDIA accounts for the vast majority of SK Hynix’s HBM orders, with NVIDIA representing about 14.8% of SK Hynix’s revenue in Q1 2026. All HBM capacity for 2026 is sold out through 2027, but high customer concentration limits SK Hynix’s bargaining power in price negotiations. If NVIDIA reduces purchases due to product cadence changes or supply chain diversification, or if competitors leap ahead technologically, SK Hynix could face rapid order loss.
2027 Supply Shortage: The Foundation of the Super Cycle
Quantifying the Gap: Data-Driven Supply-Demand Imbalance
"Supply shortages will persist through 2027"—this consensus is backed by solid data.
According to Counterpoint, DRAM capacity needs to grow at 12% annually between 2026 and 2027 to ease shortages, but actual growth is only about 7.5%, leaving a significant gap. This means supply-demand imbalance will intensify in coming years. Even with suppliers ramping up, by the end of 2027, global DRAM supply will only meet about 60% of market demand.
Goldman Sachs recently raised its outlook for DRAM shortages, forecasting global DRAM supply gaps of about 4.9% in 2026 and 2.5% in 2027, calling 2026 "the tightest year in the past 15 years." Samsung also warned in its latest earnings call that supply constraints will persist through 2027, with demand fulfillment at historic lows.
DRAM Supply-Demand Gap Forecasts (by Institution)
| Metric | 2026 | 2027 | Source |
|---|---|---|---|
| DRAM supply-demand gap | 4.9% | 2.5% | Goldman Sachs |
| Capacity growth rate | ~7.5% | — | Counterpoint |
| Demand growth rate | ~12% | — | Counterpoint |
| Capacity-to-demand ratio | ~60% | ~60% | Industry estimates |
The Timing Challenge of Capacity Expansion
The root of supply shortages lies in the physical timeline of capacity expansion. Despite major manufacturers ramping up capital expenditures, new wafer capacity is highly concentrated and mainly allocated to HBM, with virtually no increase for NAND.
SK Hynix’s M15X plant in Cheongju accelerated mass production in 2026, providing some incremental supply; the first wafer fab in the Yongin Semiconductor Cluster is scheduled for production in 2027, about three months ahead of plan. One Yongin fab is equivalent in scale to six M15X plants, making it strategically significant.
However, until Yongin’s new fab is fully operational, HBM supply constraints will remain acute. Micron’s new production lines are mostly scheduled for 2027-2028, and Samsung’s fifth HBM-focused plant won’t contribute capacity until after 2028. This means that before the second half of 2027, global HBM supply increases will be very limited.
Long-Term Agreements: Reshaping Industry Business Logic
Supply shortages are fundamentally changing the memory industry’s business model. Samsung Electronics and SK Hynix have decided to abandon the long-standing annual or quarterly supply contract model, requiring major tech customers to sign 3- to 5-year long-term supply agreements.
UBS analysis shows recent memory contracts are typically five-year agreements, commonly structured as "three years fixed pricing plus two-year extension option" or "two years fixed plus three-year extension." Some capacity is even price-locked in advance. By 2027, it’s estimated that 20%-30% of DRAM shipments will be covered by long-term contracts—Micron about 20%, SK Hynix 18%, Samsung 30%. More importantly, 60%-70% of server DDR5 volume has been locked in by hyperscale cloud providers through long-term agreements.
In negotiations with tech giants, SK Hynix has even demanded higher prepayments and price floor guarantees. This bargaining power is unprecedented in memory industry history, marking a fundamental shift from suppliers passively accepting cyclical swings to actively controlling pricing.
Rethinking Investment Logic: Cyclical or Growth Stock?
The Core Drivers Behind Valuation Repricing
SK Hynix’s trillion-dollar market cap reflects a fundamental reevaluation of the memory sector’s place in the AI era. This repricing is driven by three main factors.
First, certainty of HBM demand. As AI infrastructure investment continues to ramp up, HBM—an essential companion to GPUs—will keep benefiting from this growth.
Second, persistent supply constraints. HBM manufacturing is far more complex than traditional DRAM, requiring Through-Silicon Via (TSV) technology for vertical stacking and advanced packaging. Capacity expansion faces bottlenecks in equipment supply, yield ramp-up, and packaging, making it nearly impossible for new entrants to pose a short-term threat. The global DRAM market is dominated by Samsung, SK Hynix, and Micron, who together controlled about 89% of market share in Q1 2026 (Samsung 38%, SK Hynix 29%, Micron 22%), lacking the "competitive expansion" that typically pressures prices.
Third, a qualitative shift in business model. Long-term contracts lock in a significant portion of capacity and price floors, freeing the memory industry from the traditional "price hikes-capacity expansion-oversupply-price drops" cycle. Industry forecasts suggest that by the end of 2026, HBM-dedicated production will account for 25% of total front-end capacity, rising to 31% in 2027. This tilt toward high-margin HBM means less capacity for conventional DRAM, making supply tightness the new normal.
Risks That Cannot Be Ignored
However, several risk variables warrant ongoing market attention.
First, excessive customer concentration. NVIDIA is SK Hynix’s largest HBM customer, and any change in its procurement strategy could have major impact.
Second, the pace of competitor catch-up. Samsung and Micron are both accelerating HBM capacity expansion and R&D, and the competitive landscape may shift significantly in 2027-2028.
Third, geopolitical and supply chain security concerns. US and EU efforts to localize semiconductor supply chains could drive more HBM orders to Micron and other non-Korean suppliers. Micron’s global expansion covers the US, Japan, Singapore, and more, which may influence future customer choices.
Fourth, structural pressures on downstream demand for memory chips. As memory costs surge, the memory component share in low-end smartphones is expected to double from 20% to 40%, potentially dampening end-user demand.
Fifth, risks tied to technology iteration costs and capacity adjustments. SK Hynix has cut its 2026 HBM4 shipment plan by 20%-30%, reflecting the unpredictability of technology upgrade cycles. New products face uncertainties in yield and customer adoption, and capacity adjustments may affect short-term results.
Conclusion
SK Hynix’s dominance in HBM is the result of more than a decade of technical expertise and strategic focus. The company now stands at the intersection of the AI wave and supply shortage supercycle: Q1 net profit surged about 398% year-over-year, HBM market share remains in the lead, deep integration with NVIDIA has built a strong moat, and the spread of long-term agreements is rewriting industry rules.
Yet, all industry advantages are bound by time. 2027 will be a critical inflection point—the scale of new capacity, the speed of competitor catch-up, the persistence of AI capital spending, and the smoothness of technology upgrades will together determine whether SK Hynix transforms from a "cyclical stock" to a true "growth stock," or returns to the cyclical track.
For investors focused on the AI industry chain, SK Hynix offers a classic case study in how "technical positioning advantage translates into long-term value." The answer isn’t found in any single quarterly report, but in every turning point of industry evolution over the next two to three years.
