Meta Muse AI Agent Triggers Broker Stock Selloff: Which Financial Services Face Risk

Meta's new personal AI agent "Muse" caused a massive selloff in financial services, insurers and travel platforms on September 22 and 23, 2026. The S&P 500 Financials Index fell as much as 2.4 percent on Tuesday, September 22, to its lowest level since July, while the broader S&P 500 remained nearly unchanged.

Banks and Brokers Under Pressure

In the banking sector, JPMorgan and Wells Fargo each lost more than 3 percent on September 22, with Bank of America also declining. Brokers were particularly hard hit: Charles Schwab and LPL Financial each fell more than 6 percent on the same day. Investment bank Goldman Sachs identified companies across multiple industries that benefit from "consumer inertia" – the tendency of customers to maintain existing business relationships out of habit and switching costs rather than genuine preference.

Before the selloff, Muse had already displaced ChatGPT from the number one spot for free apps in Apple's US App Store and can perform digital tasks on behalf of the user by connecting the application with third-party services like Gmail or OpenTable. The investor concern: AI agents could reduce friction in switching providers so much that business models based on this inertia come under pressure.

Which Financial Services Goldman Sachs Identifies as At Risk

In its analysis, Goldman Sachs specifically named industries vulnerable to disruption by AI agents, provided they improve at price comparisons, travel bookings, customer service and handling recurring bills and negotiable rates. The bank listed the following companies as particularly at risk:

• AT&T and T-Mobile U.S. in the telecommunications sector
• Allstate Corp. and Progressive Corp. in insurance
• Netflix and Paramount Skydance in streaming
• Expedia and Booking Holdings in travel

Booking Holdings fell 3.9 percent on September 22. The European telecom sector was among the weakest during the selling wave.

Insurers and Travel Platforms in Focus

Research firm Citrini Research published a critical report on Monday, September 22, on consumer adoption of AI agents. Analysts argued that consumers would begin to "question companies that profit from transaction friction". The health insurance industry in particular was highlighted, where approval processes are deliberately made cumbersome – such as "five hours to get a coverage approval" – and AI agents could expose this margin creation.

Rhys Williams, Chief Strategist at Wayve Capital Management, called Muse "undoubtedly negative for this type of company," but rated the current impact as "more of a curiosity." For the future, he predicted: "In two years, we'll all have agents."

Parallels to Previous AI-Driven Market Moves

Market reaction to Muse recalls an earlier AI-triggered selloff in February 2026. At that time, software-as-a-service companies suffered significant losses after Anthropic PBC launched agentic tools like Claude Cowork. Delivery, payments and software firms were particularly affected.

Bloomberg Intelligence warned in an assessment that personal AI agents have the "potential to pull customers away from established online platforms like Uber Technologies". Analysts Mandeep Singh and William Tong predicted that Muse and competing agents like Instinct would act as "tollbooths" and generate revenue from transactions flowing through AI apps.

Citrini Research, which had already published a critical report in February, warned on September 23: "Tactics that worked when consumer behavior was driven by human psychology will become obsolete."

Winners and Losers in the AI Agent Era

While financial services and insurers suffered losses, semiconductor stocks showed gains during the same period. Amazon blocked Muse on September 21 from purchases on its trading platform and was rated by analysts as a strategic loser; the stock was virtually unchanged over the week.

The threat is not limited to Muse alone. With competing AI agents like Instinct, sector-wide disruption potential is growing. Goldman Sachs identified telecommunications companies and utilities alongside financial services as industries to watch if AI agents reduce switching costs for consumers.