Nebius signs $17.4 billion AI infrastructure deal with Microsoft, shares jump

Nebius Group's shares soared over 47% after securing a five-year deal with Microsoft, valued at $17.4 billion and potentially up to $19.4 billion, to provide GPU infrastructure capacity and AI cloud services. This significant agreement, which will leverage Nebius's Nvidia GPU-based offerings from its new New Jersey data center, highlights the intense demand for high-performance AI compute and is expected to accelerate Nebius's AI cloud business growth, even as Microsoft maintains a relationship with competitor CoreWeave.

Analysis

Nebius Group has secured a transformative five-year, $17.4 billion contract to provide Microsoft with GPU infrastructure capacity, a deal with a potential value of up to $19.4 billion. The market's reaction was immediate and substantial, with Nebius's shares surging over 47% in after-hours trading, underscoring the perceived value of the agreement. This contract validates the intense, ongoing demand for high-performance AI compute and significantly alters Nebius's growth trajectory, with its CEO stating it will accelerate the AI cloud business from 2026 onwards. For Microsoft, this move represents a critical step in securing its AI supply chain by sourcing dedicated GPU capacity from Nebius's new New Jersey data center. Importantly, the deal should be viewed within the context of a broader multi-sourcing strategy, as the article notes Microsoft remains the largest customer of Nebius's competitor, CoreWeave. This suggests Microsoft is strategically diversifying its infrastructure partners to mitigate supply-chain risks and foster competition, rather than exclusively committing to a single supplier.

Key Decisions for Investors

• For investors tracking Nebius, the Microsoft contract significantly de-risks its forward revenue outlook and validates its business model, though the sharp 47% share price increase warrants caution against chasing the rally without assessing long-term execution risk.
• Microsoft's multi-billion-dollar deal with Nebius reinforces its aggressive strategy to secure AI compute capacity, a bullish signal for the long-term viability of its AI-driven growth and an indication of prudent supply chain diversification.
• Investors in the AI infrastructure space should recognize that this deal signals a multi-sourcing strategy by hyperscalers, suggesting the market is large enough to support multiple major players and that competitors like CoreWeave remain critical suppliers.