CoreWeave (CRWV) shares are up about 3%-4% on December 22, 2025, trading around $85.96, extending a sharp rebound that saw the stock close up 22.64% on December 19, 2025, at $83.00. This rally is fueled by CoreWeave's announcement on December 18, 2025, that it joined the U.S. Department of Energy’s Genesis Mission. Additionally, Citi resumed coverage on December 19, 2025, with a 'Buy' rating and a $135 price target, albeit with a 'High Risk' label, contributing to renewed Wall Street attention despite ongoing debt concerns.