Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- Shares of CoreWeave (CRWV) rallied in premarket trading after the compay eased fears about its debt-laden business during a high-stakes quarterly report, indicating that sales growth remains strong despite challenges facing the data center industry. The AI computing provider projected revenue of $13 billion to $13.3 billion this year. That exceeded its previous range of up to $13.2 billion and sailed past the $12.9 billion that Wall Street had predicted.

- Shares of Lumentum Holdings (LITE) slipped ahead of the US market open. Marvell Technology’s (MRVL) plan to double down on AI through a blockbuster $115 billion acquisition of Lumentum is getting a lukewarm early verdict from investment experts who bet on deals. 

- Shares of Fossil Group (FOSL) rallied after the company raised its full-year sales outlook after posting quarterly growth sooner than expected.