META Stock Rose 35% in a Month, Now Begins to Fall Due To Muse AI
META stock fell from its peak after a Guardian report revealed its Muse AI agent leaked a user's home address on Facebook Marketplace, raising privacy concerns and causing shares to drop.
Nasdaq-listed social media heavyweight META recently experienced a dramatic 35% monthly surge following the debut of Muse, its personalized AI agent. After topping the App Store charts and surpassing three million downloads, the product successfully transformed market perception of the company from an ‘AI cash-burning laggard’ into a ‘potential monetization leader.’ Consequently, the equity skyrocketed, climbing from a low of $578 to a peak of $779 during September 2026.
Yet, the very catalyst behind META’s meteoric rise is now driving its recent weekly decline. A fresh investigation published by the Guardian reveals that META’s Muse AI shared a user’s residential address with an interested buyer on Facebook Marketplace. This incident has triggered renewed worries regarding user safety and data leaks for individuals listing items for sale. Specifically, the artificial intelligence agent instructed the buyer to visit the seller’s home to collect the merchandise without the seller’s knowledge or consent.
Following the published report, META shares tumbled from their $779 high down to $715 across a span of just two trading sessions. Concurrently, CEO Mark Zuckerberg saw his net worth drop by $11 billion over those same two days as the stock descended on market charts. Because the AI agent independently initiated the transaction and dispatched the seller’s home address to finalize the deal, investors are growing increasingly anxious about the functionality of Muse.
Also Read: Nvidia Adds $150 Billion to Largest Ever Stock Buyback
META Stock Under the Scanner For Privacy and Safety Concerns
Lingering privacy apprehensions regarding Muse continue to leave investors doubtful about the trajectory of META stock. The Zuckerberg-led enterprise faces mounting pressure to address loopholes and safeguard user safety and data privacy. Autonomous AI agents must not finalize sales on behalf of users or distribute private residential addresses simply because an inquiry regarding a listed product has been received. Failure to swiftly contain this issue risks pushing META stock below the $690 threshold.
Frequently Asked Questions
01Why did META stock surge initially in September 2026?
The stock climbed 35%—moving from $578 to $779—due to the successful launch of Muse, its personalized AI agent, which surpassed three million downloads and reached the top of the App Store.
02Why did META stock begin to fall?
Shares dropped to $715 over two trading sessions following a Guardian report detailing how the Muse AI agent leaked a Facebook Marketplace seller’s home address to a potential buyer without the seller’s knowledge.
03How much did Mark Zuckerberg’s net worth drop?
CEO Mark Zuckerberg lost $11 billion over a two-day period as the company’s equity slid on the market charts.
