As global artificial intelligence (AI) technology accelerates, the importance of high-performance memory semiconductors, essential for AI computation, has become greater than ever. At the center of this transformation is SK hynix, establishing its position with unparalleled technological prowess and bold investments. It has emerged as a key player in the AI semiconductor market, securing overwhelming leadership particularly in the High Bandwidth Memory (HBM) sector, and is expected to secure future growth engines based on these technological trends even in 2026. SK hynix aims to transcend being a mere memory supplier and leap forward as a 'Full Stack AI Memory Creator' leading the AI era.
SK hynix is solidifying its status as a pioneer in the HBM market. Notably, in the case of the 5th generation HBM, HBM3E, after being the first in the industry to supply an 8-layer product to clients in March 2024, it proved its technological lead by mass-producing a new 12-layer product with the current largest capacity of 36GB for the first time in the world in September of the same year. This HBM3E is incorporated into NVIDIA's next-generation AI accelerators, and SK hynix is projected to handle over 60% of NVIDIA's HBM volume in 2026. Furthermore, it plans to commence mass production of HBM4 (6th generation HBM) in early 2026, with UBS forecasting it to achieve approximately 70% market share in the HBM4 market, aligning with NVIDIA's next-generation 'Rubin' platform. This serves as a key indicator demonstrating that SK hynix is leading AI memory technology trends and preempting future markets.
Beyond HBM, SK hynix continues technological innovation in the general-purpose memory sector. It has successfully developed the world's first 6th generation (1c) 10nm-class DDR5 DRAM and strengthened its competitiveness in high-performance computing environments by obtaining compatibility certification with Intel's latest server platform. Moreover, the proliferation of artificial intelligence (AI) is redefining the role of NAND flash memory. SK hynix unveiled its next-generation NAND storage solution optimized for the AI era, the 'AIN Family' product line (AIN P, D, B), at the 'OCP Global Summit 2025', aiming for sample release by the end of 2026. In particular, it is considering applying 'HBF (High Bandwidth Flash)' technology, leveraging its HBM development capabilities, to NAND to address capacity issues. This suggests that NAND is being upgraded to a critical layer for holding AI inference state data, showcasing SK hynix's comprehensive memory semiconductor technology trends.
SK hynix is making substantial investments to proactively respond to AI memory demand. Following 29 trillion KRW in 2025, it plans to expand its capital expenditure (CapEx) to the mid-30 trillion KRW range in 2026. Specifically, it is investing over 20 trillion KRW in the Cheongju M15X fab to foster it as an HBM3E and HBM4 production base, and significantly increasing planned investments in the Yongin semiconductor cluster. Furthermore, it is expanding its global production infrastructure by constructing an AI memory packaging facility worth $3.87 billion (approximately 5.59 trillion KRW) in Indiana, USA, aiming for operation in 2028. These investments, along with strengthened packaging technology collaboration with TSMC, will drive SK hynix's future growth engines.
The memory supercycle driven by the expansion of AI infrastructure is having a positive impact on SK hynix's performance. Following its record-high performance in 2025, even more remarkable results are projected for 2026. Major securities firms, including Daishin Securities, forecast SK hynix's 2026 revenue to exceed 165 trillion KRW and operating profit to surpass 100 trillion KRW, with some projecting operating profit up to 185 trillion KRW. This analysis suggests the formation of profit margins exceeding previous supercycles. Along with its overwhelming market share in HBM, the sustained price increase in general DRAM and NAND is expected to allow SK hynix to maintain its firm dominance in the memory semiconductor market.
SK hynix is focusing on structural and material innovations to solve technological challenges and exploring new AI-based research and development (R&D) methodologies. It has strengthened its organizational capabilities to respond to AI memory demand by establishing an 'Exclusive HBM Technology Organization' and building a 'Global AI Research Center'. Furthermore, at 'SEMICON KOREA 2026', hosted by the SEMI (Semiconductor Equipment and Materials International), it reaffirmed its global technology leadership by sharing its AI-based R&D innovation direction. These efforts demonstrate that SK hynix is not merely producing products but is also setting the direction for future semiconductor technology and leading the development of the entire industry ecosystem.
Leveraging its technological lead in HBM, SK hynix holds a unique position in the AI semiconductor market. Through innovations in DDR5 and next-generation NAND technology, as well as large-scale future investments, it is building a solid foundation for sustainable growth. Amidst the ongoing memory supercycle in 2026, SK hynix is expected to further strengthen its technological leadership and market dominance, and as a key partner in the AI era, it will lead the future of the global semiconductor industry.
Q1: What is the secret to SK hynix maintaining its leadership in the HBM market?
SK hynix has accumulated technological expertise through proactive investment from the early stages of HBM technology development and close collaboration with major customers like NVIDIA. The key secret lies in maintaining a technological edge, such as being the first in the world to mass-produce the HBM3E 12-layer product and proactively pursuing HBM4 development.
Q2: What is the performance outlook for SK hynix in 2026?
Thanks to the memory supercycle fueled by the expansion of AI infrastructure, SK hynix's performance in 2026 is highly positive. Securities firms forecast operating profit to exceed 100 trillion KRW in 2026, with some predicting up to 185 trillion KRW, anticipating record-breaking performance.
Q3: How is the role of NAND flash memory changing in the AI era?
In the AI era, not only HBM and DRAM but also NAND flash memory is becoming increasingly important as a critical layer for holding AI inference state data. In response, SK hynix is expanding its role as AI memory by developing next-generation NAND solutions like the 'AIN Family'.
Q4: What are SK hynix's main investment plans?
SK hynix plans to continue large-scale investments in 2026. It is focusing on expanding infrastructure for AI memory production capacity by fostering the Cheongju M15X fab as an HBM production base and investing in the Yongin semiconductor cluster and the construction of the Indiana AI memory packaging facility in the U.S.
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