Nebius stock surged on Tuesday after Nvidia disclosed a 9.3% stake in the neocloud. The Amsterdam-based company has emerged as one of Europe's leading neoclouds providing AI compute, and has inked multiple deals with tech giants in 2026 amid massive infrastructure spending. Shares of Nebius were up 7% in premarket trading.

The company has been one of the big beneficiaries of the AI boom, with the stock gaining nearly 250% in the past 12 months. Its market cap stood at $46 billion as of Tuesday morning. Nebius and Nvidia have been approached for comment.

Nvidia previously announced it would invest $2 billion in the Dutch company, which is listed on the Nasdaq. As part of the deal, the companies will collaborate on AI infrastructure deployment, fleet management, inference and AI factory design and support. In March, Meta signed a long-term agreement to spend up to $27 billion on Nebius' AI infrastructure.

Nvidia has been building up stakes in some of the world's most promising AI companies in recent years. The chip giant contributed $30 billion to the $110 billion funding round that OpenAI announced in March, and participated in Anthropic's $30 billion raise in February. Freedom Capital Markets upgraded Nebius to a buy rating in a note on Monday.

The previous week, Nebius said it had raised $775 million in its first senior secured debt facility, backed by deployed GPU infrastructure and contracted cash flows from an agreement with an investment-grade customer. Freedom Capital Markets called the raise a "positive catalyst" for the company.