Meta shares jump 11.34% as AI assistant Muse tops US App Store

The market is treating consumer AI distribution, not just model capability, as a re-rating event: Muse reaching the top of the US App Store free chart gives Meta a demand signal that its AI spending is converting into user traction, which is why the move and the Wells Fargo target revision landed together. The pullback the following session suggests some of that enthusiasm was priced quickly rather than absorbed. The open question is whether Muse's ranking and download pace hold after launch-week novelty fades, since that durability — not the initial chart position — is what would justify a sustained re-rating.