Fluidstack Closes $1.5B at $18B, Doubling July Valuation as Jane Street Leads

According to Forbes reporting, neocloud Fluidstack closed a $1.5B round led by Jane Street at an $18B+ valuation. That more than doubles the $7.5B valuation the company confirmed with its $750M July raise, and follows its previously disclosed $50B multi-year Anthropic capacity deal. The round positions Fluidstack as one of the largest independent GPU-cloud rivals to CoreWeave and Nebius.