Observed Signal · May 28, 2026 · Investment Disclosure · Source: CNBC Technology · Impact: 3/5 · Sentiment: Neutral
Nebius Stock Surges After Ex‑OpenAI Fund Discloses Stake
Nebius, a Dutch AI cloud provider spun out of Yandex that supplies GPUs for training AI models, saw its U.S.-listed shares jump after Situational Awareness — a hedge fund founded by former OpenAI researcher Leopold Aschenbrenner — disclosed a 12.4 million Class A share holding (about 5.6% of the company) in a filing published Wednesday. Nebius rose roughly 11% in premarket trading and is up 149% year-to-date. The company has recently secured major strategic deals, including a March agreement with Meta to provide $12 billion of dedicated capacity (and up to $15 billion additional capacity over five years) and a $2 billion investment and collaboration with Nvidia announced the same month. Situational Awareness is described as managing billions and investing in physical AI infrastructure.
Disclosure signals investor interest in AI compute infrastructure and highlights Nebius' large strategic deals with Meta and Nvidia, which affect AI infrastructure capacity and market dynamics.
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Key Takeaways & Evidence Grounding
- Situational Awareness disclosed ownership of 12.4 million Class A shares in Nebius, representing a 5.6% stake, per a filing published Wednesday.
- Nebius shares rose about 11% in premarket trading and are up 149% year-to-date.
- Nebius is a Dutch AI cloud provider spun out from Yandex that provides GPUs for training artificial intelligence models.
- In March, Nebius agreed a deal with Meta to provide $12 billion of dedicated capacity and up to $15 billion of additional compute capacity over five years.
- Also in March, Nvidia made a $2 billion investment in Nebius to collaborate on AI infrastructure, fleet management, inference and AI factory design and support.
Connected Companies & Entities
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Recent verified developments and strategic activity across this market segment.
Nvidia Discloses 9.3% Stake in Nebius
Nebius shares jumped after Nvidia disclosed a 9.3% stake in the Amsterdam-based neocloud. The company, a European AI compute provider, has seen its stock rise nearly 250% over the past 12 months and had a market cap of $46 billion as of the morning of July 21, 2026. Nvidia previously announced a $2 billion investment in Nebius and plans collaboration on AI infrastructure, fleet management, inference and AI factory design. Meta also signed a long-term agreement to spend up to $27 billion on Nebius' AI infrastructure. Nvidia has been increasingly investing in promising AI companies and participating in large industry funding rounds.
Nvidia Boosts Nebius Stock 16% with $2 Billion Investment
Nvidia announced a $2 billion investment in Nebius Group and a strategic collaboration to deploy AI infrastructure, manage fleets, support inference workloads, and design AI factories. As part of the deal Nvidia will give Nebius early access to its next-generation accelerated computing platform. Nebius said it aims to deploy more than five gigawatts of capacity by the end of 2030. Nvidia CEO Jensen Huang described the partnership as scaling the cloud for rising global demand for intelligence; Nebius CEO Arkady Volozh said the company was built specifically for AI workloads rather than adapted from general-purpose cloud. The announcement follows several other recent $2 billion Nvidia investments in companies such as Lumentum, Coherent, Synopsys and CoreWeave, and sits alongside Nvidia’s larger capital commitments to AI ecosystem players including OpenAI and Anthropic.
Bank of America Sees More Upside for Nebius
Nebius Group's shares have surged roughly 210% year-to-date amid strong demand for AI-related cloud compute. Bank of America maintained a buy rating and raised its price target to $310 from $280, implying about 20% upside. Analyst Tal Liani cited Nebius’ expanding AI-optimized cloud infrastructure, global data center pipeline and management execution as drivers. Nebius reported better-than-expected Q2 results with adjusted EBITDA of $236.2 million (vs. $168.8M FactSet estimate) and revenue of $582.3 million (vs. $569.9M Street estimate), and reiterated full-year guidance including a target of 800MW–1GW of connected power by the end of 2026. The article notes broad Wall Street support, with 13 of 19 analysts rated buy/strong buy per LSEG data.
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