Nebius Group (NASDAQ: NBIS) has delivered one of the most striking stock rallies in the AI infrastructure space, climbing approximately 298% over the past year.
The surge was fueled by rapid revenue growth, landmark agreements with technology giants Meta Platforms and Microsoft, and a $2 billion investment from Nvidia.
Despite the impressive run, the stock has already pulled back roughly 26% from its record closing price in June, signaling that the market is becoming more selective.
Investors appear less willing to reward announcements alone, with attention now shifting toward whether Nebius can actually deliver on its ambitious operational targets.
Nebius provides cloud computing infrastructure and software that companies use to train and run artificial intelligence models, placing it at the center of surging enterprise AI demand.
In the first quarter of 2026, the company’s revenue surged 684% year over year to $399 million, while its core AI-cloud revenue jumped 841% to $390 million.
Management has set full-year 2026 revenue guidance in the range of $3 billion to $3.4 billion, reflecting continued confidence in the underlying demand environment.
To reach the midpoint of that guidance, Nebius will need to average approximately $934 million in revenue across each of the final three quarters of the year.
Long-term agreements with Meta Platforms and Microsoft provide strong forward visibility, but the company must build and equip the required data centers on schedule before it can formally recognize revenue from those contracts.
The speed and cost of converting new data center capacity into actual revenue remains the central question for investors evaluating the stock at current levels.
Financing concerns have already shown their ability to rattle the share price sharply, as demonstrated by events in mid-March when Nebius announced a new AI infrastructure agreement with Meta Platforms, sending shares nearly 15% higher on March 16.
The following day, the company announced plans to raise $3.75 billion through convertible notes, a figure that ultimately reached a final principal amount of approximately $4.34 billion.
By March 31, the stock had fallen around 20% from its March 16 closing price, illustrating how quickly capital-raising activity can erode enthusiasm for new contract wins.
On valuation, Nebius shares are currently trading at nearly 17 times the midpoint of management’s 2026 revenue guidance of $3.2 billion, placing the stock at a clear premium relative to many infrastructure peers.
Investors will also need to monitor whether continued AI infrastructure expansion requires additional borrowing or fresh share issuance, either of which could dilute existing shareholders over time.
The combination of premium valuation, heavy capital requirements, and a demanding execution timeline means the risk-reward profile for new buyers is considerably more complex than it was a year ago.
