Meta Platforms shares gained modestly on September 16, 2026, closing near $673 amid continued momentum from the Meta One subscription launch the prior day and Muse personal AI agent rollout. The service bundles enhanced large language model usage, content tools, and creator features across Instagram, Facebook, and WhatsApp, with early traction exceeding 15 million subscriptions during testing. Analysts highlighted the moves as steps toward diversified AI revenue, with Rosenblatt reiterating a Buy rating and $886 target while Citi flagged the upcoming Connect conference as a near-term catalyst. Plans for camera-free Luna smart glasses with Meta AI voice capabilities, slated for fall shipments, further reinforced positioning against competitors in the AI hardware and agent space. Broader mega-cap growth rotation supported the session's positive close.