Chip Stocks Surge as OpenAI's Stargate Project Fuels AI Memory Demand Hype.

Chip stocks, including Micron, AMD, NVIDIA, SanDisk, Lam Research, Broadcom, and Western Digital, rose on Thursday after OpenAI signed initial agreements with Samsung and SK Hynix for its Stargate project, boosting AI memory demand expectations. The sector-wide rally came as OpenAI could potentially need 900,000 wafers per month for the project, more than double the current global capacity for high-bandwidth memory. However, some analysts expressed skepticism about the demand projections.

Chip stocks, including Micron, AMD, NVIDIA, SanDisk, Lam Research, Broadcom, and Western Digital, rose on Thursday after OpenAI signed initial agreements with Samsung and SK Hynix for its Stargate project, boosting AI memory demand expectations. The sector-wide rally came as OpenAI could potentially need 900,000 wafers per month for the project, more than double the current global capacity for high-bandwidth memory. However, some analysts expressed skepticism about the demand projections.

OpenAI's Stargate project, a venture with SoftBank and Oracle to spend $500 billion in building new AI data centers for OpenAI in the US and elsewhere, has requested volumes equivalent to as many as 900,000 wafers a month Samsung, SK Hynix join OpenAI’s $500 bn Stargate project with HBM supply pacts^[1]. This demand is more than twice the current global production capacity, signaling a significant shift in the semiconductor market. Samsung Electronics Co. and SK Hynix Inc., the world’s two largest memory chipmakers, have agreed to strengthen collaboration with OpenAI Inc. to supply high-bandwidth memory (HBM) semiconductors for the Stargate initiative Samsung, SK Hynix join OpenAI’s $500 bn Stargate project with HBM supply pacts^[1].

Samsung and SK will deliver a large portion of the HBMs used in OpenAI’s custom AI accelerators. According to market research firm Counterpoint Research, Samsung and SK together command nearly 80% of the global HBM market, giving them strategic leverage as hyperscalers and AI developers race to secure supply Samsung, SK Hynix join OpenAI’s $500 bn Stargate project with HBM supply pacts^[1]. The agreements position Samsung and SK at the center of a $500 billion project to build next-generation AI infrastructure by the end of the decade.

The latest surge in Samsung Electronics and SK Hynix underscores how quickly the race for artificial intelligence hardware is reshaping the semiconductor sector. At the heart of this rally lies OpenAI’s Stargate project—an ambitious plan to build global-scale AI data centers and secure vast supplies of advanced semiconductors AI Boom Lifts Samsung and SK Hynix to Multiyear Highs^[2]. The initiative represents one of the most aggressive capital allocations in the history of the tech sector.

The deal includes various types of memory, including commodity DDR5 and specialty HBM memory for AI processors. To put the 900,000 DRAM wafers number into context: global 300mm fab capacity is projected to reach 10 million wafer starts per month (WSPM) in 2025, according to TechInsights. DRAM capacity accounted for a 22% share (2.07 million WSPM) in 2024 OpenAI's Stargate project to consume up to 40% of global DRAM output — inks deal with Samsung and SK hynix to the tune of up to 900,000 wafers per month^[3].

The surge in Korean chip stocks reflects both short-term speculative enthusiasm and long-term structural repricing. Investors are effectively treating OpenAI’s Stargate as proof that AI hardware is shifting from concept to industrial deployment. The spillover into commodities and currencies is also worth watching: as Korea’s export profile tilts further toward AI chips, the won could see medium-term support, while energy markets may face upward pressure from the massive power demand implied by floating and terrestrial data centers AI Boom Lifts Samsung and SK Hynix to Multiyear Highs^[2].

However, risks remain. The pace of AI adoption could fall short of the extreme capital commitments currently projected, especially if global growth slows or funding enthusiasm cools. U.S. export policy remains a wildcard, with potential to disrupt supply chains or politicize Korean partnerships. Moreover, competition from Micron and potential new entrants cannot be discounted if margins expand too quickly AI Boom Lifts Samsung and SK Hynix to Multiyear Highs^[2].

For now, however, markets are voting with conviction. The surge in Samsung and SK Hynix is not just about speculative flows but about the recognition that the AI infrastructure race has entered a new phase. Investors should see this as both a validation of AI’s industrial scale and a reminder that in semiconductors, the winners are often those who can deliver at scale when demand shifts from promise to production AI Boom Lifts Samsung and SK Hynix to Multiyear Highs^[2].