Meta's Muse AI agent rattles brokerages as Schwab drops and Robinhood climbs

Meta Platforms (META) climbed 11% Monday as its new personal AI agent, Muse, hit the top of Apple's US app store. Now Wall Street is punishing the businesses Muse could disrupt. Schwab sank 6% Tuesday on fears an AI assistant could talk customers into moving their money, while Robinhood, built for younger traders, hit a new high.