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Samsung and SK Hynix to Supply Chips for OpenAI’s $500 Billion Stargate Project

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Samsung Electronics and SK Hynix, South Korea’s top semiconductor manufacturers, have signed letters of intent to supply memory chips for OpenAI’s massive Stargate project, marking a major step in Seoul’s growing role in global artificial intelligence infrastructure.

As part of the deal, OpenAI will collaborate with both companies to build two new AI data centers in South Korea, branded as “Korean-style Stargate,” aligning with President Lee Jae Myung’s goal of turning the country into an AI innovation hub in Asia. The decision leverages South Korea’s strong industrial base and its status as the world’s second-largest ChatGPT subscription market after the United States.

The agreements were announced on Wednesday following a high-profile meeting in Seoul between OpenAI CEO Sam Altman, President Lee Jae Myung, and the chairmen of Samsung Electronics and SK Hynix.

The Stargate project, unveiled by U.S. President Donald Trump in January, aims to invest $500 billion into developing next-generation AI infrastructure with global partners such as SoftBank, Oracle, and now the South Korean chip giants. The initiative seeks to secure the computing capacity needed to sustain AI’s rapid growth and maintain U.S. leadership in the field.

South Korea’s presidential adviser Kim Yong-beom revealed that OpenAI plans to order 900,000 semiconductor wafers by 2029 and establish joint ventures with Samsung and SK Hynix to operate two 20-megawatt-capacity data centers domestically.

“The significant part of the Stargate project would be impossible without memory chips from the two companies,” said Kim.

He added that South Korea may also participate in financing the project.

Altman, in his remarks, emphasized the strategic importance of Korea:

“Korea has an industrial base like nowhere else in the world that is critical for the development of AI. We’re very excited to build Stargate Korea with Samsung and Hynix to support the sovereign AI needs of the country.”

Together, Samsung and SK Hynix control about 70% of the global DRAM market and nearly 80% of the HBM (High Bandwidth Memory) market. HBM technology, introduced in 2013, stacks chips vertically to save space, boost performance, and reduce power consumption, making it vital for AI data processing.

Analysts estimate that 900,000 wafers of advanced DRAM could be worth more than 100 trillion won ($70 billion), though prices may fluctuate depending on market conditions.

In addition to the memory supply deals:

  • Samsung SDS, an IT services affiliate, signed a partnership with OpenAI to develop and operate AI data centers under the Stargate framework.

  • Samsung Heavy Industries and Samsung C&T will collaborate on floating offshore data centers, designed to reduce cooling costs and carbon emissions.

Meanwhile, Google has also been in talks with several South Korean companies to explore potential AI collaborations. In June, SK Group announced a 7 trillion won investment, including $4 billion from Amazon Web Services, to build another major data center in the country.

Despite optimism about AI’s transformative potential, some investors remain cautious, citing the risk of a tech infrastructure bubble as companies rush to build large-scale data facilities.

The Stargate project, delayed earlier by prolonged negotiations and site selection, is now poised to gain new momentum through this South Korea partnership, reinforcing the nation’s position at the heart of the global AI supply chain.

Nvidia to invest up to $100B in OpenAI, fueling AI dominance — and antitrust worries

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Nvidia will invest up to $100 billion in OpenAI and supply it with advanced data center chips, the companies confirmed Monday, marking one of the largest-ever deals in artificial intelligence. The pact ties together the world’s leading AI chipmaker and the sector’s most high-profile model developer, deepening concerns about market concentration.

Deal structure

  • Nvidia will acquire non-voting shares in OpenAI.

  • OpenAI will use the cash to purchase Nvidia chips, creating what analysts called a “circular” arrangement.

  • The two companies signed a letter of intent to deploy at least 10 gigawatts of Nvidia systems — equivalent to powering 8 million U.S. homes.

  • Nvidia will begin deliveries in late 2026 via its new Vera Rubin platform, starting with 1 GW of compute.

  • Initial investment: $10B, with further tranches scaling toward $100B.

OpenAI CEO Sam Altman said: “Compute infrastructure will be the basis for the economy of the future, and we will utilize what we’re building with Nvidia to both create new AI breakthroughs and empower people and businesses with them at scale.”

Market reaction

  • Nvidia shares hit a record intraday high (+4.4%).

  • Oracle gained 6% amid its own collaboration with OpenAI, Microsoft, and SoftBank on the $500B Stargate data center project.

  • Broadcom fell 0.8% on concerns the deal could complicate its custom-chip work with OpenAI.

Industry context

The pact follows:

  • Microsoft’s multibillion-dollar investments in OpenAI since 2019.

  • Nvidia’s $5B investment in Intel and its $6.6B backing of OpenAI in 2024.

  • Ongoing OpenAI efforts to design its own AI chips with Broadcom and TSMC, which reportedly remain unchanged.

Antitrust spotlight

The DOJ and FTC reached an agreement in 2024 enabling potential probes into the roles of Microsoft, Nvidia, and OpenAI in AI. Analysts warn this deal could intensify scrutiny:

  • Andre Barlow, antitrust lawyer: “It could potentially lock in Nvidia’s chip monopoly with OpenAI’s software lead, making it more difficult for rivals like AMD or competing AI labs to scale.”

  • Stacy Rasgon (Bernstein): The structure raises concerns about Nvidia’s investment dollars coming back as chip purchases.

The Trump administration has so far taken a lighter regulatory approach than Biden’s, emphasizing growth over enforcement — though officials say protecting competition in AI infrastructure remains a long-term priority.

Oracle Stock Soars on AI Cloud Deals as Ellison Nears Musk in Wealth Rankings

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Oracle shares rocketed nearly 43% to a record high on Wednesday, putting the software giant within reach of the $1 trillion market cap club. The surge comes after Oracle unveiled four multi-billion-dollar contracts, positioning itself as a rising force in the global AI cloud race.

The Wall Street Journal reported that OpenAI has signed a staggering $300 billion contract with Oracle for computing power over five years — one of the largest cloud deals ever inked. Most of Oracle’s newly announced revenue gains stem from this partnership, analysts said.

The stock hit a high of $345.69, set for its biggest one-day percentage gain since 1992. If momentum holds, Oracle will add $234 billion in market value, bringing it to about $913 billion. Shares are already up 45% this year, outperforming the Magnificent Seven tech stocks and the broader S&P 500.

Ellison Closes in on Musk

The rally boosted co-founder Larry Ellison’s net worth by nearly $100 billion, to $392.6 billion, according to Forbes. Ellison, 81, is now within striking distance of Elon Musk, whose wealth stands at $439.9 billion.

AI Cloud Momentum

Oracle’s cloud business has seen explosive growth thanks to partnerships with Amazon, Microsoft, and Alphabet, which now allow customers to run Oracle Cloud Infrastructure (OCI) alongside their native services. Revenue from these collaborations rose 16-fold in Q1.

CEO Safra Catz told investors: “Over the next few months, we expect to sign up several additional multi-billion-dollar customers, and RPO is likely to exceed half-a-trillion dollars.”

Oracle is also a participant in Stargate, the $500 billion AI infrastructure project backed by SoftBank and OpenAI, which analysts say could provide revenues well into the next decade.

Market Impact

The earnings also lifted semiconductor suppliers Nvidia, Broadcom, and AMD, whose shares climbed 2–8% on expectations of higher demand for data center chips. Rival CoreWeave saw its stock jump about 15%.

With Oracle trading at 33.34x forward earnings, it now commands a valuation premium over Amazon (32.34x) and Microsoft (30.83x), underscoring how investors see its AI-driven growth story as one of the strongest in tech.