Nebius Stock: A 571% Sales Jump, a $40–45 Billion Build, and a Breakeven Date in Late 2027

Nebius closed Friday down 9.6%, and the sell-off has pushed a single question to the front of the investment case: can the company fund its sprawling data-center expansion without tripping over its own timetable? Investors are now weighing hefty contractual commitments against the risk that new capacity takes longer than promised to start generating revenue.

The numbers published Thursday offer a mixed picture. Revenue in the third quarter of 2026 reached $980.8 million, a 571% jump year on year — though $325.1 million of that total came from one-off proceeds tied to strategic partnerships. Those unaudited figures were released Thursday.

That split matters for anyone valuing the stock. The durability of growth, not its headline pace, is what counts: one-off partnership income flatters the reporting quarter, but recurring customer revenue and reliably available prepayments are what will ultimately finance a sustained build-out.

Prepayments Are Meant to Carry the Load

Management expects customer prepayments and asset-backed financing to cover 75–85% of 2027 investments, a capital program penciled in at $40–45 billion. That coverage ratio is the key test — it spells out how much of the expansion customers and lenders are supposed to front.

It is, however, an expectation rather than a certainty. The money has to arrive on time, and the financing has to be available when needed. If a facility's start-up slips, those timing assumptions become even more critical.

For 2027, Nebius projects prepayments of $17–20 billion. That figure explains why contract structure matters as much as revenue growth. In the best case, Nebius collects substantial funds before delivering the service, easing the financing burden — provided the payment schedule and the spending needs line up.

Contracts signed during the third quarter of 2026 offer an encouraging signal. According to the company, associated prepayments covered more than 100% of the capex for that capacity, with over 90% of contract value tied to prepayments. Should that quality repeat in future deals, Nebius could add capacity with considerable customer support, lightening the immediate funding pressure — assuming the agreed payments actually land and the facilities then perform as contracted.

Management's read on demand backs that view. Executives say the delays concern timing, not demand, and that none of the postponed capacity has been cancelled.

Where the Cash Flow Pinches

The bear case starts with cash generation. Operating cash flow in the third quarter of 2026 was ?$273 million, even as adjusted EBITDA came in at $465.8 million. With that adjusted result landing in a quarter boosted by sizable one-off revenue, investors should watch closely how cash inflows and recurring revenue evolve once such contributions fade.

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Execution risk at third-party data centers adds another layer. The Thursday results made clear that some capacity has slipped into next year. The remaining Microsoft deliveries at the Vineland, New Jersey site are now slated for the second quarter of 2027.

The troubling scenario combines further delays with weaker prefinancing: expected revenue would arrive later while the build-out keeps consuming capital. Funding would get harder if customer payments and secured loans fall short of their intended share of investment.

Two Dates to Watch

The next hard checkpoint is the annualized revenue target, now pushed to February 2027. After that comes the remaining Microsoft capacity in the second quarter of 2027. Both milestones tie the financing question directly to operational delivery.

Guidance for 2027 stands at $12–13 billion in revenue, with delays shifting part of the expected top line into the first half of 2027. Management also expects to reach pre-tax breakeven in the fourth quarter of 2027 — a timeline that demands patience and gives investors a yardstick for the coming investments. Anyone bullish on the growth story must also factor in slippage along the way.

For the full year 2026, Nebius expects revenue at the low end of its prior $3–3.4 billion range, while raising its capex plan — a combination that sharpens the tension between build speed and dependable revenue recognition. Reuters reported that the shares fell after the more cautious revenue outlook and the higher spending plan.

Near term, commentary on payment schedules, project progress and available financing will carry the most weight. Confirmation of the expected prefinancing and delivery plans would support a more favorable read. Further slippage, by contrast, would raise the risk of a longer funding gap between capital outlays and recurring revenue.

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