SK Hynix shares hit 25-year high, Samsung also surges as chipmakers partner with OpenAI

Asia (excl. Greater China & Japan)
Source: CNBCPublished: 10/02/2025, 07:40:00 EDT
SK Hynix
Samsung Electronics
OpenAI
High-Bandwidth Memory
AI Chips
SK Hynix shares hit 25-year high, Samsung also surges as chipmakers partner with OpenAI

News Summary

Shares of South Korean chip heavyweights Samsung Electronics and SK Hynix surged Thursday, a day after the two companies partnered with artificial-intelligence major OpenAI as part of its Stargate initiative. SK Hynix stock surged nearly 10% to levels not seen since 2000, while Samsung shares closed 3.5% higher, hitting their highest since January 2021. OpenAI stated the partnership will focus on increasing the supply of advanced memory chips essential for next-generation AI and expanding data center capacity in Korea. OpenAI CEO Sam Altman met with South Korean President Lee Jae Myung and top leaders at Samsung and SK Hynix, signing agreements to explore developing next-generation AI data centers in South Korea. SK Hynix had previously announced its readiness to mass-produce its next-generation high-bandwidth memory (HBM) chips, cementing its leading position in the AI value chain as a major supplier to AI giants like Nvidia. While Samsung has traditionally led the memory market, SK Hynix has taken a lead in the HBM space, with a Counterpoint Research report indicating SK Hynix caught up with Samsung's memory revenues in Q2.

Background

High-bandwidth memory (HBM) is a critical type of memory used in chipsets for artificial-intelligence computing, including those from global AI giants like Nvidia, and is essential for powering complex AI models. SK Hynix has historically been a main chip supplier to Nvidia and holds a leading position in HBM, with its HBM4 chips expected to be central for Nvidia's next-generation Rubin architecture AI chips. Samsung, traditionally the market leader in memory, has faced challenges from SK Hynix in the HBM space in recent years and is actively working to get its HBM4 chips certified by Nvidia. OpenAI's Stargate initiative aims to develop more powerful and advanced AI models and data center infrastructure, requiring a substantial supply of cutting-edge AI chips.

In-Depth AI Insights

What are the deeper strategic implications of this partnership for OpenAI's Stargate initiative? - Securing Critical AI Hardware Supply: By partnering directly with the two leading HBM suppliers, OpenAI aims to secure and accelerate a stable supply of advanced memory chips essential for its next-generation AI models, mitigating supply chain risks and accelerating the Stargate initiative. - Leveraging South Korea's Manufacturing Prowess: Expanding data center capacity in South Korea capitalizes on the nation's strengths in chip manufacturing and infrastructure, potentially enabling more efficient AI model training and inference. - Solidifying Ecosystem: This move strengthens OpenAI's influence within the AI hardware supply chain and could foster deeper integration with the South Korean tech ecosystem, laying groundwork for future technological innovations. How might this impact the competitive landscape between SK Hynix and Samsung in the HBM market? - SK Hynix's Lead Solidified: As a key Nvidia supplier, SK Hynix's partnership with OpenAI further validates its HBM technological leadership, potentially leading to increased orders and market share. - Samsung's Catch-up Accelerated: This collaboration provides Samsung a crucial opportunity to accelerate its HBM catch-up, gaining validation and production volume by supplying OpenAI, ultimately aiming for more Nvidia orders. - Potential for Collaboration and Specialization: Over the long term, both companies might find avenues for cooperation or specialization to meet the immense demand for AI chips, jointly advancing HBM technology, though intense competition will persist. What are the broader strategic implications of this collaboration in the global semiconductor geopolitical context? - Strengthening US-Allied AI Supply Chain: Under President Trump's administration, the US prioritizes resilient and secure critical technology supply chains. OpenAI's partnership with South Korean chip giants reinforces the US-led AI ecosystem's reliance on allied (South Korean) advanced chips, aligning with 'friend-shoring' strategies. - Elevating South Korea's Strategic Position in Global AI: This positions South Korea as a pivotal hub for global AI infrastructure and advanced chip manufacturing, bringing significant economic benefits and technological influence, especially amidst escalating US-China tech competition. - Potential Impact on China's AI Development: Closer collaboration among the US and its allies in advanced AI chip supply chains could further restrict China's access to cutting-edge HBM and other critical AI hardware, potentially affecting the pace and competitiveness of China's domestic AI industry.