Nebius's $5.75 Billion War Chest Faces Its First Real-World Test

Nebius shares fell 3.5% after Nvidia paused revenue-sharing deals, despite closing a $5.75B convertible and strong Q2 growth.

The AI infrastructure boom has a new stress test, and it goes by the name of Nebius. The Amsterdam-based cloud provider finds itself at the center of two competing narratives this week: one driven by sector-wide anxiety over Nvidia's shifting partnership strategy, the other by the company's own aggressive capital deployment plans.

Shares in Nebius slipped 3.5 percent to €181.18 on Wednesday, following reports that Nvidia has paused revenue-sharing agreements with AI cloud infrastructure partners. The move ripples across the entire "neocloud" sector, removing a key incentive for providers to remain tethered to Nvidia's GPU ecosystem. Just a day earlier, the stock had closed at €187.66, and the whipsaw action underscores just how sensitive this corner of the market has become to anything emanating from the chipmaker's Santa Clara headquarters.

What makes Wednesday's decline particularly striking is the timing. It arrives on the heels of a session where the sector rallied sharply on strong Nvidia earnings, and it cuts against a steady stream of company-specific positives that have been building for weeks.

A Convertible That Keeps Growing

The most consequential development remains the closing of Nebius's convertible bond offering, which ultimately raised $5.75 billion in gross proceeds — well above the initially targeted $4.5 billion, with the greenshoe option fully exercised. The issuance splits into two tranches: $3.45 billion in notes carrying a 0.50 percent coupon maturing in 2030, and $2.3 billion at 4.50 percent due in 2034.

The market's reaction to this capital raise has been anything but consistent. When plans for the placement first leaked in mid-August, the stock cratered more than 10 percent in a single session on dilution fears. Yet Goldman Sachs subsequently lifted its price target to a Street-high $328, maintaining a buy rating and framing the capital influx as validation of the growth strategy rather than a shareholder drag.

That divergence in interpretation — the same $5.75 billion read as both existential threat and strategic catalyst — is precisely what makes the coming months so pivotal.

The Operational Engine Keeps Humming

Beneath the noise, the fundamentals remain robust. Second-quarter revenue surged 454 percent year over year to $582.3 million, with the AI cloud segment alone expanding 514 percent to $575 million. Adjusted EBITDA swung from a $21 million loss in the prior-year quarter to a $236 million profit, translating to a 41 percent margin.

Management has reaffirmed its full-year revenue guidance of $3.0 billion to $3.4 billion, alongside an exit ARR target of $7 billion to $9 billion. Perhaps most ambitiously, the company raised its contracted capacity goal for end-2026 from four to five gigawatts of secured power — a target that now serves as the clearest yardstick for whether the freshly raised capital is being put to productive use.

There are also quieter signals of continued expansion. Reports emerged this week that Nebius is exploring a data center build-out in Estonia, evidenced by a job posting for a warehouse and logistics specialist at that location. While hardly official confirmation, it fits a pattern of aggressive capacity development that has defined the company's trajectory for months.

The Dilution Question Lingers

The bear case centers on a timing mismatch. Nebius has the capital now, but converting it into contracted capacity and revenue takes time — time during which the interest burden on the 2034 notes and the overhang of potential share issuance could weigh on valuation.

Shareholders at last week's annual meeting granted management considerable latitude: authorization to issue new Class A shares up to 20 percent of outstanding capital, paired with a buyback program of equivalent size over 18 months. That combination gives the board a full toolkit to manage dilution — but it also keeps the risk structurally alive.

Adding to the watchlist: several directors sold Class A shares in August under pre-arranged 10b5-1 trading plans. Such sales are standard practice and hardly a signal of waning confidence, but in a jittery market, they invite scrutiny.

A Stock That Has Run Far, Fast

The technical picture adds another layer of complexity. Nebius now trades below its 50-day moving average of €189.86, a sign that the momentum from a blistering rally — the stock is still up 146 percent year to date — has stalled. When valuations have absorbed that much optimism, sector headlines land with outsized force.

The annual meeting also passed all proposed resolutions without friction, a routine outcome that nonetheless signals no governance turbulence on the horizon.

The Gigawatt Countdown

For investors, the next concrete checkpoint is straightforward: can Nebius hit its five-gigawatt contracted capacity target by year-end? The order book, which analysts pegged at roughly $40 billion in August, suggests demand is not the constraint. Execution is.

If the company sustains its second-quarter growth trajectory while deploying the new capital efficiently, the convertible raise will be remembered as the moment Nebius secured the runway to cement its lead in AI infrastructure. If capacity build-out stumbles or margins compress under the weight of new debt, the dilution question will return with force.

The sector's reflexive reaction to Nvidia news — up one day on strong earnings, down the next on partnership pauses — is unlikely to subside anytime soon. For Nebius, the challenge is to make the fundamental story loud enough to drown out that noise.