Nebius Pushes Deeper Into the Energy Business — Whether It Likes It or Not

Nebius shares rally 45% in seven days after securing 5GW contracted capacity and a UK expansion, with pricing power signaling strong AI demand.

There's a moment in every infrastructure boom when the distinction between technology company and utility starts to blur. For Nebius, that moment arrived this week with a single number: 5 gigawatts of contracted capacity targeted by year-end. That's the kind of figure one expects from a power generator, not an AI cloud provider.

The market's response has been emphatic. Shares climbed 6.5 percent to €235.65 on Friday, extending a seven-day rally of 45 percent. The stock now trades roughly 21 percent above its 50-day moving average of €194.02, a stretch that underscores just how far the equity has run from its medium-term base. Even so, it sits about 9.8 percent below its 52-week high.

Wales Deal Puts Flesh on the Gigawatt Ambition

The catalyst for the latest leg higher came Thursday, when Nebius and Vantage Data Centers unveiled an agreement to build high-density, Nvidia-powered AI infrastructure at the CWL1 campus in Newport, Wales. It marks the first commercial capacity commitment in the South Wales AI Growth Zone, and it anchors a broader UK expansion worth £1.7 billion.

Vantage sees the potential for more than a gigawatt of AI-ready capacity across its South Wales footprint, including sites in Bridgend and Bro Tathan. For Nebius, the arrangement fits a strategy of spreading its AI cloud offerings — training, inference, agentic AI, enterprise workloads — across a wider geographic base. Beyond the 5-gigawatt year-end target, management expects contracted capacity to grow by more than a gigawatt annually from 2027.

Pricing Power Tells a Deeper Story

What makes the Wales announcement more than just another land grab is what happened in Nebius's latest capacity auction. The third-quarter sale cleared at prices 15 percent above the company's previous record high and 20 percent above current Blackwell market rates. That pricing power suggests demand for GPU capacity still outstrips supply — a dynamic analysts broadly view as temporary but persistent for now.

The numbers behind that strength are striking. Second-quarter revenue jumped 454 percent year over year to $582.3 million, with the AI cloud segment growing 514 percent and now representing 98 percent of total revenue. Management reaffirmed its full-year guidance of $3 billion to $3.4 billion in revenue at a 40 percent EBITDA margin. Customer prepayments swelled by $4.4 billion over six months, indicating that Nebius is financing a substantial portion of its expansion through advance payments rather than debt alone.

The Bull Case and Its Counterweights

Nvidia's passive stake of 9.3 percent, disclosed via a Schedule 13G filing, adds a quiet but weighty vote of confidence from the industry's most important supplier. The stock's 340 percent climb from its 52-week low of €53.50 reflects how much momentum those signals have generated.

Yet the skeptics remain vocal. Investor Michael Burry has increased his short position, describing Nebius as "what the peak of a boom looks like." Analyst price targets span an unusually wide range of $144 to $410, a dispersion that says as much about the uncertainty surrounding the AI infrastructure cycle as it does about the company itself.

Growing Pains Beyond the Balance Sheet

Expansion at this pace inevitably collides with the physical world. In Missouri, residents near Independence are suing over a planned $150 billion data center on 400 acres, alleging the city violated transparency rules and granted $6 billion in tax incentives. In Estonia, the domestic intelligence service Kapo is monitoring a proposed 22-megawatt facility in Hüüru because of the company's Russian roots. CEO Arkadi Volozh, a Yandex co-founder, renounced his Russian citizenship and condemned the invasion; the EU removed him from its sanctions list in 2024.

With annualized volatility of 177 percent, Nebius remains a stock for investors with strong stomachs. The question isn't whether the company is growing — the numbers make that undeniable. It's whether the pace of that growth can justify what the market has already priced in. Between gigawatt ambitions in Wales and Burry's warnings from the shadows, the answer won't come from any single trading session. It will emerge over the quarters ahead, as the capacity pipeline converts into revenue and the pricing power demonstrated in the latest auction either proves durable or fades.