Such market swings happen very rarely. Meta Platforms added about $192 billion to its market value in a single session as investors priced in strong early demand for its new personal AI agent, Muse. Shares jumped roughly 11–11.4% and it lifted Mark Zuckerberg’s wealth by more than $13 billion. It was two days after Amazon blocked Muse turning a product launch into a high-stakes fight over AI-driven commerce.
The rally unfolded in a risk-on market, with the Nasdaq hitting fresh record highs and AI-related names leading the advance. The “Magnificent Seven” basket of mega-cap tech names regained momentum after weeks of caution on AI safety and regulation. In that setting, Meta’s jump acted as a catalyst, reinforcing the view that consumer-facing AI agents could be the next major revenue engine for big tech.
Muse is an “agentic” AI built to act on behalf of users, from sending emails and booking travel to negotiating and completing transactions such as selling a car. It offers a free tier plus $20 and $100 monthly subscriptions, and logged about 2.8 million downloads in its first 12 days across the US and Canada, topping app-store charts.
Amazon, however, says Muse accessed its store without authorization, did not clearly identify itself as an AI agent, and appeared to capture and store customer credentials, raising privacy and security concerns. The e-commerce giant has barred Muse and other third-party shopping agents, insisting that AI tools must operate transparently. For investors, the episode highlights both the upside of agentic AI and the platform-access, regulatory and trust hurdles.
AI AGENTS ARE THE NEW BATTLEGROUND FOR WHO OWNS THE CUSTOMER.
Sanjay Sahay
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