Nebius's Capital Blitz: A $5.75 Billion Bet on the AI Cloud Build-Out

Nebius closes $5.75B convertible, gains broad capital authority, and faces dilution vs. growth trade-off as AI capex bet unfolds.

The arithmetic behind Nebius Group's expansion strategy is as staggering as it is simple: the company must pour tens of billions into data centers and GPU capacity in the hope that contracted demand will catch up. After a week that saw shareholders hand management an exceptionally broad capital toolkit and the company close a convertible bond raise that blew past its original target, the market's verdict on that wager remains cautiously mixed.

A Mandate for Maximum Flexibility

At the annual general meeting, investors waved through all 16 resolutions on the agenda, granting the board authority that extends well beyond routine housekeeping. Management now has a five-year window to issue up to 20 percent in new Class-A shares — crucially, with the right to exclude existing shareholders' pre-emption rights — alongside an 18-month mandate to buy back up to 20 percent of outstanding stock at market prices on the Nasdaq. Shareholders also approved the cancellation of 2,243,621 treasury Class-C shares.

The voting arithmetic underscored the company's distinctive governance structure: the 238,402,543 Class-A shares carry one vote apiece, while the 33,455,053 Class-B shares wield ten votes each. Re-elections of key figures including Arkady Volozh, Ophir Nave, and John Boynton each drew backing from more than 370 million votes.

The Convertible That Kept Growing

The equity mandates arrived in tandem with a debt raise that ballooned well beyond its initial parameters. Nebius closed a $5.75 billion convertible bond offering — a substantial step up from the $4.5 billion originally targeted, which had already been revised to $5 billion days earlier. The structure splits into $3.45 billion carrying a 0.50 percent coupon maturing in 2030 and $2.3 billion at 4.50 percent due in 2034, with an additional $750 million in exercised options.

In a parallel move, the company swapped $400 million each of its existing 2.00 percent and 3.00 percent bonds for roughly 15.8 million new Class-A shares. Proceeds are earmarked for data center expansion, GPU capacity, and the AI cloud platform. Management framed the oversubscription relative to the original target as evidence of sustained demand for compute infrastructure.

Reading the Market's Temperature

The share price response has been telling in its restraint. After the AGM, the stock climbed 6.4 percent to €195.64 on Thursday, sitting roughly 2.3 percent above its 50-day average. But that followed a 3.3 percent dip to €183.82 the previous Wednesday, when the convertible's closing was announced. Over seven days, the stock remains down 2.5 percent, though the monthly picture is far healthier at plus 23 percent.

The gap to the 52-week high of €261.00 — roughly 25 percent — suggests investors are still weighing the dilution arithmetic against the growth narrative. The convertible's potential conversion into equity could pressure future earnings per share, even as the buyback authorization offers a theoretical counterweight.

The Growth Math Under the Microscope

The central question for investors is whether Nebius can convert its capital-raising velocity into revenue growth at a comparable pace. Second-quarter revenue surged 454 percent to $582.3 million, with the AI cloud segment contributing $575 million of that total. The annualized run-rate hit $3 billion by the end of June, up 598 percent year over year.

Management reaffirmed its full-year guidance of a $7 billion to $9 billion run-rate against a capital expenditure framework of $20 billion to $25 billion. That spread captures the scale of the bet: Nebius must deploy enormous sums into data centers and GPU infrastructure within a compressed timeframe to deliver on its promised revenue trajectory.

Supporting the thesis is a $40 billion order backlog and customer prepayments exceeding $9 billion, which the company says should cover 50 to 60 percent of capex. The first capacity auction closing 15 percent above the previous high price for Blackwell chips also points to tight supply against robust demand.

Where the Risks Cluster

The bear case centers on dilution and execution. The exclusion of pre-emption rights opens the door to equity issuance if the convertible alone proves insufficient to fund the upper end of the capex range. Regulatory headwinds are also building — Cantor Fitzgerald flagged growing resistance to data center projects in certain jurisdictions when it initiated coverage with an Overweight rating.

The reported talks to acquire Israeli AI startup Decart AI add another layer of complexity. Nebius is said to be competing with Nvidia, SpaceX, and Amazon for the same target — a bidding contest that could inflate the purchase price or end with a rival walking away with the prize. With annualized volatility at 173 percent, even modest disappointments in future metrics could trigger outsized price swings.

The Next Test: Capital Deployment

For now, the market appears willing to interpret the expanded capital authorities as growth tools rather than dilution threats, provided the order backlog and prepayments continue their current trajectory. The stock trades far above its September 5 low of €53.50, a reminder of how much optimism has already been priced in.

The real test comes in the months ahead: whether management deploys its new powers toward buybacks and accretive capacity investments — or reaches for equity issuance that dilutes existing holders. And whether the Decart AI auction ends in a value-accretive acquisition or a costly retreat. The governance uncertainty has cleared; the capital allocation questions have only just begun.