Meta's new Meta Compute division triggers 15% drops in Nebius and CoreWeave shares as investors worry about $48B in contracts with their biggest competitor.

Meta jumped 6% Friday and 15% on the week after unveiling Meta Compute, a plan to sell AI computing capacity to outside customers.

Nebius Group N.V. (NASDAQ: NBIS) stock fell Monday amid Meta Platforms Inc. (NASDAQ: META) competition concerns and rising AI market valuation anxiety.