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

On this episode of Stock Movers:

- Meta Platforms (META) will pay as much as $27 billion over the next five years for access to artificial intelligence infrastructure from cloud provider Nebius Group (NBIS) as it spends aggressively to compete with the industry’s top frontier models.

- National Storage Affiliates (NSA) shares are soaring after Public Storage agreed to acquire the company for $41.68 per share. The stock last closed at $30.94.

- Dollar Tree (DLTR) gave a mixed annual outlook, raising some doubts about its ability to keep winning over shoppers with low prices.