CoreWeave, Nebius, IREN Shares Fall Pre-Bell After Rival Elon Musk Disparages Sector

06:24 AM EDT, 10/26/2026 (MT Newswires) -- CoreWeave (CRWV), Nebius (NBIS), and IREN (IREN) shares fell in Monday's pre-bell trading after Tesla (TSLA) and SpaceX (SPCX) founder Elon Musk said that more than 200 companies in the neocloud sector were doomed to failure. Coreweave was down 3% while Nebius and Iren were both down 2%. Musk wrote in a social media post Sunday that "as of the past few weeks, debt markets have almost entirely shut off access to money for any company that doesn't have substantial revenue independent of AI data centers. That means the 200+ neoclouds are going to see guppy-level death and consolidation. Some will make it through, but not many." Musk's SpaceX competes with the other companies.