TLDR
- Nebius stock jumped 51% in premarket trading following a $19.4 billion Microsoft partnership announcement
- The multi-year deal provides AI infrastructure services through 2031 worth $17.4 billion to Nebius
- Microsoft gains access to GPU computing power for training artificial intelligence models
- CoreWeave competitor stock also rose 6.6% on the infrastructure demand news
- Deal demonstrates continued strong appetite for AI computing capacity among tech giants
Nebius stock rocketed higher Tuesday morning after the AI infrastructure company announced a massive partnership with Microsoft. Shares surged 51% in premarket trading following news of the multi-billion dollar agreement.

The Amsterdam-based company secured a multi-year deal worth $19.4 billion to provide cloud computing infrastructure for Microsoft’s AI operations. Nebius will supply graphics processing units and computing power needed for artificial intelligence model training.
Under the agreement terms, Nebius receives $17.4 billion in guaranteed revenue through 2031. Microsoft also holds options to purchase additional computing capacity as demand grows.
Nebius emerged as an independent company after spinning out from Russian internet giant Yandex in 2023. The firm specializes in providing GPU infrastructure specifically designed for AI workloads.
Microsoft Partnership Details
The Microsoft deal represents one of the largest AI infrastructure contracts announced this year. It positions Nebius as a key supplier in Microsoft’s artificial intelligence strategy.
Nebius shares had already gained 60% during Monday’s extended trading session. Tuesday’s continued rally brought total gains to over 100% since the partnership announcement.
The agreement validates demand for specialized AI computing services. Tech companies increasingly rely on external providers rather than building internal infrastructure.
Microsoft’s commitment spans multiple years and includes substantial minimum spending guarantees. This provides Nebius with predictable revenue streams and growth visibility.
Broader AI Infrastructure Market
The Nebius-Microsoft partnership boosted other AI infrastructure stocks. CoreWeave shares climbed 6.6% in premarket trading on increased sector optimism.
Nvidia recently reported strong quarterly results driven by AI chip demand. The company expects continued growth above 50% for the current quarter.
Nvidia’s CFO projects $3-4 trillion in total AI infrastructure spending by 2030. This forecast supports long-term growth prospects for companies like Nebius.
Private AI companies have attracted massive funding rounds recently. OpenAI reportedly seeks a $500 billion valuation while Anthropic raised $13 billion last week.
Some market participants expressed bubble concerns about AI valuations. OpenAI CEO Sam Altman and other experts cautioned about excessive speculation last month.
Nebius counts Nvidia and Accel among its key investors. This backing provides credibility and strategic partnerships within the AI ecosystem.
The Microsoft deal confirms enterprise demand for AI computing remains robust. Large technology companies continue investing heavily in artificial intelligence capabilities.