Nebius Group and CoreWeave both reported Q2 2026 results this week showing robust AI compute demand, but with starkly different business models and financial profiles.
Nebius posted $582.3 million in revenue (up 454% year over year) with adjusted EBITDA of $285.7 million in its AI Cloud segment and improving margins, while CoreWeave reported $2.575 billion in revenue (up 112.32%) but carries significant leverage with $72.05 billion in liabilities.
The article suggests Nebius may offer faster margin expansion, while CoreWeave's larger backlog ($104 billion) and NASDAQ-100 inclusion appeal to leverage-tolerant investors—but CoreWeave's negative free cash flow of -$5.74 billion this quarter signals execution risk.
What happened
Nebius Group and CoreWeave both reported Q2 2026 earnings this week showing strong AI compute demand. Nebius jumped 34.14% on filing day with revenue of $582.3 million (up 454% year over year) and adjusted EBITDA of $285.7 million in its AI Cloud segment. CoreWeave climbed 19.28% with revenue of $2.575 billion (up 112.32%) and adjusted EBITDA of $1.51 billion at a 59% margin.
Why it matters
The two companies operate at vastly different scales and strategies. Nebius is building a full stack (cloud platform plus tools like TripleTen, Avride, and Toloka), while CoreWeave focuses purely on GPU cloud services. Nebius's cost of revenue fell to 23% from 29%, showing genuine operating leverage, whereas CoreWeave carries $72.05 billion in liabilities with $640 million in quarterly interest expense—a structural difference investors must weigh when choosing between margin growth and leverage risk.
What to watch
For Nebius, whether management hits reaffirmed guidance of $3.0 billion to $3.4 billion in FY2026 revenue and $7 billion to $9 billion in ARR, with customer concentration (top three customers were 59% of Q2 revenue) as a pressure point. For CoreWeave, whether the $25 billion in new commitments added early Q3 converts to booked revenue faster than interest expense grows; the company posted negative free cash flow of -$5.74 billion this quarter.
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