Nebius: Still A Buy, Just Not A Table-Pounding Buy

Nebius Group reported extraordinary Q1 performance, with revenue up 684% YoY and ARR up 674%, despite compute capacity constraints. Adjusted EBITDA margin improved to 32%, and 2026 guidance was raised to more than 4GW of contracted power with CapEx of $20–25B, underscoring strong AI cloud demand and expanding operating leverage. Management now targets roughly 40% adjusted EBITDA margin in 2026, signaling a materially stronger profitability trajectory.

Analysis

NBIS is transitioning from a “growth-at-any-cost” narrative to a scarce-infrastructure story, and that matters because the market will likely begin capitalizing contracted power and capacity optionality rather than just headline revenue growth. In AI cloud, the binding constraint is no longer demand but deliverable megawatts; that shifts pricing power toward firms that can secure interconnects, transformers, and long-duration grid access ahead of peers. The second-order winner set likely includes upstream equipment and electrical infrastructure suppliers, while the losers are smaller neoclouds and GPU-rental peers that lack balance-sheet capacity to pre-fund multi-year power buildouts.

The key risk is execution latency: the market will reward guidance today, but the equity can de-rate quickly if power delivery slips by even 1–2 quarters or if the company is forced into dilutive financing to fund the capex roadmap. Over the next 3–6 months, the stock is likely trading on order backlog, capacity milestones, and incremental customer wins; over 12–24 months, the real debate is whether margin expansion is durable once competition catches up and power becomes less scarce. If AI demand normalizes before the buildout is monetized, the current multiple can compress despite strong top-line optics.

The consensus may be underestimating how much of the upside is already in the operational bottleneck narrative. With capex stepping up sharply, the best risk/reward is not chasing the common-stock momentum indiscriminately but expressing the theme through instruments with defined downside or via relative value versus less-capitalized AI infrastructure peers. A second contrarian angle: if NBIS continues to execute, it could become a consolidator of stranded power assets, creating an embedded real-asset-like valuation framework rather than a standard software multiple.

Near term, the stock can keep grinding higher on every confirmation that contracted power and customer demand remain ahead of schedule, but any miss on capacity timing would likely trigger a fast reset because expectations are now anchored to industrial-scale delivery. That makes the setup asymmetric: upside is gradual and milestone-driven, while downside can be abrupt if markets infer the company is outrunning its financing or construction capacity.

Key Decisions for Investors

• Long NBIS on pullbacks over the next 1–2 weeks, but size as a milestone trade, not a full-duration compounder; target 15–25% upside if capacity and backlog remain on track, with a hard stop on any power-delivery delay.
• Buy NBIS call spreads 3–6 months out to express upside from continued AI cloud scarcity while limiting downside from capex/financing concerns; structure for 2:1 to 3:1 payoff if the stock rerates on execution.
• Pair trade: long NBIS vs short a smaller, undercapitalized AI infrastructure/cloud peer basket over 1–2 quarters, aiming to capture the balance-sheet and power-access premium as the market differentiates winners from capacity-constrained laggards.
• Monitor convertible or equity issuance risk closely; if the stock rallies sharply on guidance, take partial profits into strength rather than assuming the multiple can expand indefinitely through capex phase.
• Add an alert for any sign of interconnect or buildout slippage; if timing slips, reduce exposure immediately because the stock’s downside re-rating could be swift and disproportionate.