Nebius’s $46 Billion in Hyperscaler Contracts Meets a 13% Selloff: Can the AI Infrastructure Builder Deliver Gigawatts Fast Enough?

Nebius locked in $27B Meta and $19.4B Microsoft AI infrastructure contracts, but its stock plunged 13% amid market doubts over capacity delivery timelines and execution risks.

Nebius has locked in blockbuster commitments from the biggest names in tech, yet its stock suffered its worst one-day rout in months last Friday. The disconnect between the company’s growth narrative and the market’s reaction is widening — and the trigger is a stark question about timing.

Meta Platforms has agreed to spend up to $27 billion over five years on Nebius’s AI infrastructure, while Microsoft’s contract could reach $19.4 billion. Nvidia, already a strategic investor with a multibillion-dollar stake, is also a key supplier. The trio of hyperscalers has effectively put Nebius on the map as a serious contender in the race to build out compute capacity for artificial intelligence.

Despite those headline numbers, the stock closed at €194.32, down 13.19% on the day. That followed a previous session’s close of €223.85 and pushed the shares 20.02% below their 52-week high of €242.95, set only on 2 June 2026. The retreat has been described by market observers as a “valuation shock” — the market is now questioning how fast the contracted capacity can actually go live.

Nebius has sharply raised its capacity targets. Instead of three gigawatts, the company now expects more than four gigawatts of contracted capacity by the end of 2026. In Pennsylvania, a 1.2-gigawatt AI data centre is under development, and a further project of one gigawatt has been initiated in Independence, Missouri. A framework agreement with Bloom Energy adds another 328 megawatts via fuel cells, a deal worth up to $2.6 billion across three ten-year phases.

The Bloom partnership is central to Nebius’s execution thesis. The fuel cells deliver power behind the meter, reducing reliance on new transmission lines and potentially cutting the time to energise a facility. That matters because, as one TSMC executive noted recently, energy efficiency is becoming a critical bottleneck for future AI data centres. Nebius sees the Bloom deal not as a side project but as a way to accelerate its US build-out, with global expansion a later possibility.

Alongside these infrastructure moves, Nebius closed three acquisitions in the first quarter of 2026: Tavily, Eigen AI and Clarifai. Tavily brings real-time web search to Nebius’s cloud platform, allowing AI agents to access current information. Eigen AI and Clarifai optimise the so-called “Token Factory” offering at the model and system level. The strategy is clear: Nebius wants to cover the entire AI value chain, not just sell raw computing power.

The market’s scepticism, however, centres on operational delivery. The annualised 30-day volatility stands at 137.65%, a level that underscores how price swings of this magnitude are hardly unusual for this stock. The relative strength index sits at a neutral 54.8, suggesting the move is not technically overdone, but the context is telling. The stock remains 30.11% above its 50-day moving average and 90.96% above its 200-day average — extreme premiums that leave little room for error.

On a year-to-date basis, Nebius is still up 154.01%, and over twelve months the gain is a staggering 378.62%. The distance from the 52-week low is 411.37%. Those numbers reflect an infrastructure story that has been priced for perfection. But with a market capitalisation of €56.83 billion, Nebius is no longer a hidden gem. The stock has rallied as though the path to profitable scale is already clear.

The reality is that building gigawatt-scale AI factories involves permits, construction timelines, power procurement and local community acceptance. In Missouri, the company has started work on what it calls the first digital infrastructure project at that scale in the US, and it has cited measures to address water usage, noise, light and grid strain. Such details are dry but crucial.

For now, the core investment case remains intact. Nebius sits at the intersection of surging AI workloads and the physical constraints of power and speed. The contracts with Meta, Microsoft and Nvidia validate demand. The Bloom agreement and the Pennsylvania and Missouri projects show a management team that is prioritising tangible capacity. The question is whether the company can turn commitments into delivered gigawatts by the end of next year. The next quarterly results will offer a reality check on how far the gap between announcements and execution has closed.