SK Hynix Navigates AI Leadership and Legal Challenges

SK Hynix showcases AI memory dominance at NVIDIA GTC but faces a US ITC patent lawsuit over HBM technology, even as it secures a major share of HBM4 supply.

While SK Hynix solidified its reputation as a premier supplier of AI memory at this week's NVIDIA GTC 2026 conference in San Jose, the company is simultaneously confronting a significant legal challenge that could impact its operations despite strong market performance.

Legal Threat Emerges Amid Industry Growth

A developing patent lawsuit casts a shadow over the firm's recent showcase. Monolithic 3D, a US-based non-practicing entity, has filed a complaint against SK Hynix with the International Trade Commission. The allegation centers on patent infringement related to 3D stacking technology across several high-bandwidth memory (HBM) product generations, including HBM2E, HBM3, and HBM3E.

This case is part of a broader trend. Data from the Korean Intellectual Property Office indicates that approximately 80 percent of all US patent lawsuits targeting Korean companies in 2024 were initiated by entities often described as patent trolls. Industry observers note that escalating legal defense costs risk diverting crucial resources away from core research and development initiatives.

Unwavering Market Position and Key Partnerships

Despite this legal headwind, SK Hynix's market dominance appears robust. The company used the industry event to display its comprehensive AI memory portfolio. This included next-generation HBM4 and HBM3E products, SOCAMM2 solutions for NVIDIA platforms, and a collaboratively developed liquid-cooled eSSD. Top executives, including SK Group Chairman Chey Tae-won and SK Hynix CEO Kwak Noh-jung, attended in person to advance strategic partnerships with global technology leaders.

A telling indicator of its clout is the supply allocation for NVIDIA's upcoming Vera Rubin platform. SK Hynix has secured about 70 percent of the HBM4 supply share, with Samsung Electronics receiving the remaining 30 percent. It is important to note, however, that final qualification by NVIDIA is still pending. Although the last verification samples have been delivered, formal approval has not yet been granted.

The company's standing in the sector is formidable. According to Counterpoint Research, SK Hynix commanded a 62 percent share of the HBM market by supply volume in the second quarter of 2025. The broader context is a semiconductor market projected to expand by over 25 percent in 2026, reaching approximately $975 billion globally, with the memory segment itself expected to grow by 30 percent.

Share Performance and Upcoming Milestone

The equity market has responded positively to the company's operational strength. SK Hynix shares have delivered exceptional performance over the past twelve months, currently trading around 99 percent above their 52-week low recorded in October 2025. Investors will be watching closely for the next quarterly results, scheduled for release on April 29, 2026, to see if this operational momentum is clearly reflected in the financial figures.