Nebius Group shares rose nearly 5% in overnight trading. Reports indicate the company will increase cloud service prices starting June 1.

Customer emails suggest on-demand capacity rates will climb 29%. Preemptible capacity prices will reportedly surge by 51%. Nebius has not officially commented on the price changes.

The move follows a strong data center outlook from AI chipmaker Nvidia. This forecast has improved investor sentiment across the broader cloud sector.

The stock remains volatile as investors weigh high capital expenditures against potential returns. Some market participants question if rapid expansion can justify the company's current valuation.