Nebius's Revenue Is Forecast to Roughly Quadruple Year Over Year. Here's Why Analysts Are Still Debating Whether That's Enough to Justify the Stock.

Written by Micah Zimmerman for The Motley Fool

Nebius is surging as AI cloud demand accelerates.

A large contracted power target supports the growth story.

Nebius has strong AI infrastructure demand and long-term contracts, but its premium valuation leaves little room for weaker pricing.

If you've been following the stock market this year or the artificial intelligence (AI) boom, you had to have heard of Nebius (NASDAQ: NBIS) by now. The stock is on an absolute tear, up more than 200% this year. The stock jumped almost 50% last week alone.

Nebius' revenue is on track to roughly quadruple this year, but the stock still sits in a gray zone where some investors see a future AI infrastructure giant and others see a capital-hungry niche player priced for perfection. The debate comes down to what Nebius is actually building, how durable that revenue is, and whether the current valuation already assumes most of the upside.

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Nebius' growth is coming in huge steps. In Q1 2026, revenue hit $399 million, up 684% versus about $51 million a year earlier, and up 75% from Q4. Its AI cloud unit produced $389.7 million in Q1, an 841% year-over-year increase, and by Q2, total revenue reached $582.3 million as AI cloud sales rose nearly sixfold, beating analyst expectations. Management projects $3 billion to $3.4 billion of revenue this year, which would be roughly quadruple 2025 revenue and put Nebius into midtier hyperscaler territory based on the top line alone.

Nebius offers a specialized AI native cloud, not a general-purpose cloud like Amazon Web Services or Microsoft's Azure. It offers non-virtualized GPU clusters, fast networking, and a full stack of tools for training, fine-tuning, and inference, built for large models rather than traditional enterprise workloads. Customers can spin up GPU capacity in minutes, scale clusters elastically, and pay under flexible consumption models tuned to AI training and inference rather than generic computing hours. That focus lets Nebius pitch better performance and a lower total cost of ownership to AI natives and enterprises that prioritize raw training throughput over deep integration with a broader cloud ecosystem.

The revenue ramp-up is not happening in a vacuum. Nebius has signed multibillion-dollar AI cloud contracts, including at least four core infrastructure deals averaging more than $1 billion each, and has raised its contracted power target to 5 gigawatts (GW) to support those workloads. It's spending heavily to keep up. The company anticipates $20 billion to $25 billion of capital expenditure (capex) in 2026 alone, mostly on GPUs, data center build-outs, and related hardware, on top of earlier plans in the $16 billion to $20 billion range. To relieve some of that pressure, Nebius has rolled out an infrastructure partnership model where third-party operators finance and own AI data centers, while the company provides its architecture, hardware design, and software stack, and then sells the resulting capacity through its global marketing organization.

The problem is that the stock already prices in a lot of this story. At recent levels, Nebius trades at a lofty 57 times sales, doesn't earn a profit, and is a business that leans on premium pricing in a supply-constrained GPU market. Bears worry that as GPU capacity from Nvidia (NASDAQ: NVDA), hyperscalers, and rivals like CoreWeave (NASDAQ: CRWV) grows, Nebius will lose some pricing power, forcing it to compete more on service and economics and less on scarcity, which would pressure margins and slow its revenue expansion that many analyst estimates assume.

On the other hand, supporters point out that demand for AI infrastructure continues to outstrip supply and that Nebius is locking in long-term, multibillion-dollar contracts and global capacity partnerships that could turn today's revenue surge into a more durable base. The reason analysts are still debating it is simple. Nebius sits right at the intersection of a historic AI computing boom and the hard realities of building and financing data centers at scale. Quadrupling revenue is impressive, but whether that's enough for the stock depends on how long Nebius can turn scarce capacity and focused engineering into a lasting advantage.

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Micah Zimmerman has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Nvidia. The Motley Fool has a disclosure policy.