Meta Platforms shares surged sharply the week of September 21, 2026, with intraday highs reaching the mid-$750s and the stock closing near $778 by September 25, propelled by strong user adoption of the newly launched Muse AI personal agent and positive momentum from the Meta Connect event. Muse quickly topped app store charts with hundreds of thousands of daily downloads, prompting multiple analyst upgrades and price targets as high as $945, as investors priced in potential new revenue streams from AI agents integrated into Ray-Ban Meta glasses and other wearables. The rally also reflected relief from an $18 billion legal settlement in late August that cleared a prior overhang, alongside robust second-quarter ad revenue growth of 28% year-over-year. Traders are now watching the October 28 earnings release for updates on capital expenditures and AI monetization progress.