CoreWeave gains 19%, Nebius surges 34% in post-earnings neocloud rally

Artificial intelligence neocloud CoreWeave saw shares pop 19% on Wednesday after reporting that its second-quarter revenue doubled, driven by surging demand from hyperscalers for AI compute capacity.

The company, which rents out high-powered computing capacity needed to run and build AI, reported after the bell Tuesday that its second-quarter revenue came in at $2.6 billion, up 112% from $1.2 billion in the second quarter of 2025. It's guiding for third-quarter revenue of between $3.4 billion and $3.6 billion.

But the company is still not profitable. Operating expenses for the quarter also more than doubled year-on-year and marginally exceeded revenue, per the results. CoreWeave was last seen up 19.9% in premarket trading. At Tuesday's close, it was up 26% since the start of the year.

Its revenue backlog for the quarter stands at $104 billion as of June 30, which doesn't include $25 billion in new customer commitments for the third quarter.

"To put that in perspective, like $25 billion is virtually the size of our backlog a year ago, and so it gives you an idea of how much demand there is for our product and how much it's growing," CEO Michael Intrator told CNBC's "Squawk on the Street" on Wednesday.

Neoclouds, which specialize in graphics processing unit infrastructure, have seen big gains as a result of the AI boom. 

Amsterdam-headquartered, Nasdaq-listed Nebius ripped 34% higher on Wednesday after announcing a strong commercial quarter. Revenue grew 514% to $575 million, and the total value of contracts won quadrupled, the company said. The stock has risen more than 150% in the past 12 months.

U.K.-based Nscale, which is targeting an IPO this year, has drawn large sums in private capital, raising billions of dollars in equity, debt and project financing in 2026.

AI stocks were also buoyed by Taiwan's Foxconn, also known as Hon Hai — the world's largest contract electronics manufacturer which assembles Apple's iPhone and makes servers that hold chips in data centers — reporting a better-than-expected increase in profit on Wednesday. 

Supermicro, which makes data center hardware, saw its shares surge 19% on Wednesday after it reported more than $60 billion in new orders over the past year in its fourth-quarter earnings.

Coreweave's stock since the beginning of the year.

In the earnings release, Intrator said the company had reached "an important inflection point" during the quarter.

But CoreWeave has taken on significant debt as it races to build AI infrastructure.

Operating expenses rose to $2.6 billion from $1.2 billion a year earlier. That left CoreWeave with an operating loss of $49 million, compared with operating income of $19 million a year earlier.

For the full year, the company forecasts revenue of $12.4 billion to $13.2 billion and adjusted operating income of $960 million to $1.15 billion.

Some of its second-quarter highlights include winning customers such as Bentley Systems, Grammarly, Isomorphic Labs, and Sunday Robotics.

It also deepened major commercial partnerships with Jane Street, committing $1 billion in strategic investments, while Meta said it would spend an additional $21 billion with CoreWeave during the quarter.

Citi analysts said in a note Wednesday that CoreWeave "delivered a confident message" in the second quarter, demonstrating that AI demand was robust, it had stronger pricing power, saw growing demand for its software and tokens business, and posted better-than-expected margins.

They added it was "one of the cleaner quarters" for CoreWeave since it went public last year. "We think shares should move meaningfully higher on increased investor confidence in the execution and improving profitability," the analysts continued.

They pointed to upward revisions to profitability guidance and positive updates on execution and customer and revenue diversification.

The analysts said those developments were positive signs for demand across the hyperscaler and neo-cloud space.