Business 4 min read By Arthur Ellington
Investors Sell Off Firms as Meta's AI Agent Threatens Customer Inertia
Investors sold shares of Charles Schwab, Allstate and Planet Fitness after the launch of Meta's Muse agent, as AI agents could weaken the behavioral barriers that keep customers in place.
Investors have begun to reassess companies whose competitive protection rests not on product superiority but on customer habits. After the September launch of Meta's personal AI agent Muse, shares of several companies fell sharply: Charles Schwab lost more than 6%, Allstate 5.5%, and Planet Fitness dropped as much as 11% in some trading. Online booking services, including Expedia and Booking, also came under pressure.
The discussion centers on so-called behavioral barriers, or behavioral moats. Their foundation is consumer inertia: being busy, forgetfulness, reluctance to read the fine print, and the hassle of switching providers. As long as these factors hold, companies can retain customers even when their offer is not the most advantageous. Personal AI agents can remove many of these obstacles, since they take over the searching, comparing and switching that ordinary people tend to neglect.
At the same time, the publication notes that the market's reaction may be overstated. Agentic AI remains at an early stage, and it is unclear how widely consumers are willing to delegate decision-making authority to software acting on their behalf.
In the financial sector, security has become the key issue. Charles Schwab blocks third-party AI agents from accessing client accounts without permission and is building controlled connection channels with restrictions. According to the article, other major banks are taking similar steps. Trust is critical here: granting software access to accounts carries serious security risks.
Insurance and offer comparison, by contrast, are opening up to new tools. Kin Insurance welcomes AI agents for purchasing insurance and has created tools for accessing quotes. Insurify has launched an AI Agent Gateway that allows insurance offers to be compared in real time.
The subscription model appears especially vulnerable. A 2025 study published in the American Economic Review found that difficulties in cancelling subscriptions roughly doubled sellers' revenue. If agents can simplify contract cancellation, this revenue stream is at risk, which explains the drop in Planet Fitness shares. However, as noted, Netflix's advantage lies not in customer inertia but in content that is harder to replicate.
Changes are already visible in retail and travel. Priceline's Penny agent is moving from trip requests directly to booking. Walmart has launched an Agent Gateway that allows third-party agents to search for products and make purchases within limits set for shoppers. Amazon, meanwhile, blocked Muse citing security concerns and is developing its own AI shopping tools. Mastercard, for its part, is building infrastructure for merchants working with AI agents.
Not all forms of competitive advantage are equally vulnerable. According to the article, patents, intellectual property and rare physical assets are harder to compare using AI, and experience that is difficult to replicate retains its protective role.
Several questions remain open: how much control over their decisions consumers are willing to hand over to agents, whether retailers will lose the first contact with customers and the advertising value tied to it, and whether business protection reflects real quality rather than mere customer inertia.
Source: fortune.com
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