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Nebius surges 47%, Cipher Mining and IREN both advance on speculation of more AI infrastructure partnerships.
By James Van Straten, AI Boost|Edited by Sheldon Reback
Sep 9, 2025, 9:19 a.m.
- Nebius will supply Microsoft with GPU infrastructure over five years in a deal worth $17.4 billion and with a potential expansion to $19.4 billion.
- AI mining stocks Cipher Mining and IREN rose about 9% on further speculation of more AI infrastructure deals taking place.
Nebius Group (NBIS) shares soared 47% in pre-market trading after the company said it signed an agreement to supply Microsoft (MSFT) with graphic processing units (GPUs) in a deal Reuters valued at $17.4 billion over five years.
The contract is worth more than the Amsterdam-based company’s entire market capitalization, currently $15.29 billion. According to Reuters, Microsoft may increase the contract value to $19.4 billion by acquiring additional services capacity.
STORY CONTINUES BELOW
Shares of other companies involved in artificial intelligence (AI) computing, also advanced. Cipher Mining (CIFR) and IREN (IREN) both climbed 9% on speculation of further AI infrastructure partnerships, echoing similar moves seen earlier this year with CoreWeave (CRWV) and TerraWulf (WULF).
Nebius provides Nvidia-powered GPUs, cloud services and AI developer tools built on its proprietary hardware and software.
AI Disclaimer: Parts of this article were generated with the assistance from AI tools and reviewed by our editorial team to ensure accuracy and adherence to our standards. For more information, see CoinDesk’s full AI Policy.
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