META Stock Declines Following Privacy Concerns Over Muse AI

META shares dropped from a high of $779 to $715 over two trading sessions after reports revealed that its Muse AI agent leaked a user's home address to a potential buyer on Facebook Marketplace. The incident has sparked investor skepticism regarding the safety and privacy features of the AI tool, which had previously driven the stock to a 35% monthly gain in September 2026. CEO Mark Zuckerberg reportedly saw an $11 billion decline in his equity value as market concerns mount over the AI's autonomous deal-making capabilities.