Nebius Surges 230% on Nvidia Investment and Deals, but Execution Risk Remains

What happened

Nebius shares surged 230% in H1 2026, driven by Nvidia's investment, major computing deals, and a strong Q1 earnings beat. However, this rally has pushed the stock to a valuation that already assumes timely conversion of its massive capex into billable capacity. The company's Q1 2026 revenue of $399M and ARR of $1.92B show impressive momentum, but depreciation remains high at 53% of revenue. The next critical catalyst is the Q3 2026 capacity energization update, which will determine if the stock can sustain its premium. Without flawless execution, the current price leaves little room for error.

Implication

The recent run-up reflects genuine progress, but the stock at $203.8 carries an EV/EBITDA of 99x, implying near-perfect execution. The biggest contracts, particularly Meta's up to $27B deal, are largely 2027 stories and do little to de-risk 2026 revenue targets. Q1 2026 capex of $2.47B underscores the capital intensity; any delay in energizing connected power could impair returns. The DeepValue report's base case values the stock at $205, suggesting the current price offers no margin of safety. Patient investors should wait for Q3 2026 results to confirm that capacity additions are on track before considering a position.

Thesis delta

The market narrative has shifted from 'Is demand real?' to 'Can Nebius execute at hyperscale?' The positive headlines in H1 2026 validated demand, but the stock's valuation now requires flawless capacity conversion. Any sign of delays or service credits would undermine the thesis, as the stock has limited upside from current levels without exceeding already high expectations.