Fastly Stock Jumps 17% on Report That It Handles All of Meta Muse's Browser-Agent Tasks

Fastly (FSLY) surged Wednesday as Wall Street weighed in on the company's investor day, with shares jumping as much as 17.12% on the session and nearly 30% over the past five trading days — fresh evidence that the Muse-driven infrastructure trade first flagged this week extends well beyond the usual chip names.

The report behind the move

A circulated report from research firm OddDiligence found that, across 738 controlled tests of Meta's Muse AI agent, Fastly handled 100% of requests requiring interactive browser navigation or autonomous browser-agent tasks — the technical work involved whenever Muse actually has to click through pages, render JavaScript, or complete a multi-page task on a user's behalf rather than simply fetch data.

How the infrastructure split up

Looking at overall traffic share across the test set, OddDiligence attributed 37.0% of requests to Cloudflare, 29.3% to Fastly, 19.4% to Meta's own infrastructure, and 14.4% to AWS. But that overall split masks a much sharper division by task type: Fastly was the exclusive provider for every browser-navigation and browser-agent scenario tested, while Cloudflare took 100% of command-line, API, direct-fetch, and backend-service traffic. Web-search requests, by contrast, were spread across all four providers — Fastly, Meta, Cloudflare, and AWS.

Why the browser-agent share matters

The distinction is significant because browser-navigation and browser-agent tasks are arguably the most technically demanding and highest-value part of what an agent like Muse does — the capability that lets it actually shop, book, or fill out forms on a user's behalf, rather than just answer a question. Fastly CEO Kip Compton said the company benefits from consumer AI use cases across delivery, security, and agent-privacy capabilities, and the test report's finding that Fastly is the exclusive provider in Muse's browser-navigation scenarios gives that claim concrete, if narrow, support.

Wall Street moves the target

Freedom Broker raised its Fastly price target to $37 from $32 while maintaining a Buy rating, implying meaningful further upside from current levels. The upgrade adds to a run that's already seen the stock gain nearly 30% over five sessions, as investors reassess which infrastructure providers stand to benefit as agentic AI products like Muse scale up.