Fastly Just Dropped 41% in a Month: Is FSLY Stock Dead Money or Due for a Bounce?

Fastly beat estimates, raised guidance and still watched investors dump the stock for the third straight earnings report. Behind the record revenue sit a rising customer concentration problem and a sales chief heading for the exit.

Published November 5, 2026, 2:51pm ET · 4 min read

Market Movers desk. Editor: David Moadel.

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A long aisle in a data center is lined with numerous black server racks on both sides, filled with blinking green lights and a dense network of colorful cables (blue, yellow, orange). Overhead, cable trays with more yellow cables run along the ceiling, which is lit by both fluorescent lights and a blue light strip. Sunlight streams in from large windows on the left, casting long shadows on the light gray floor and illuminating parts of the server racks. A city skyline is visible through the windows in the distance.
Rows of server racks and intricate cabling illustrate the complex infrastructure underpinning modern cloud services, like those offered by edge cloud companies such as Fastly. © 24/7 Wall St.

A strong earnings report wasn’t enough to stop the selling in Fastly (NASDAQ:FSLY), the edge cloud company whose big rally this year has reversed quickly. Fastly stock is down 41% over the past month to $15.32 in afternoon trading. That decline includes a 27% drop following the company’s Q3 2026 earnings report.

Even after the sell-off, Fastly stock is still up year to date. Fastly’s 52-week high stands at $33.50, set in April. Whether the slide marks a reset or a breakdown is now the central question for shareholders.

How Fastly Gave Back 41% in a Month

Software and cloud stocks sold off over the past month on worries about AI spending, and the pressure deepened in a tech sell-off after the midterm elections. Fastly then released Q3 results after the close on November 4, posting adjusted earnings per share (EPS) of $0.17 against a $0.12 consensus estimate. Selling picked up anyway once the report hit.

Cloudflare (NYSE:NET | NET Price Prediction) stock is at $241.23, down 33% over the past month. Meanwhile, Akamai Technologies (NASDAQ:AKAM) stock is at $79.87, down 26% over the same stretch. Both rivals are down less than Fastly, which points to the earnings reaction as the extra weight on Fastly.

Bull Case for a Fastly Rebound Rests on Growth and AI

Fastly posted record Q3 revenue of $190.2 million, up 20.2% year over year. Within that total, Fastly’s security revenue rose 32% and now accounts for 24% of sales. Guidance moved up too, with Fastly calling for Q4 2026 revenue of $198 million to $202 million and raising its full-year 2026 outlook to $744 million to $748 million.

FSLY earnings explorer

On profitability, Fastly’s adjusted operating income reached $31.2 million, up from $11.6 million a year earlier. Customers are spending more, with Fastly’s trailing 12-month net retention rate rising to 119% from 117% in Q2 2026. Free cash flow at Fastly was positive for a seventh straight quarter.

AI traffic adds a longer-term boost for Fastly. New products such as AI Runtime Control and AI Firewall target that demand, and a leading AI company signed a seven-figure commitment with Fastly. Comcast (NASDAQ:CMCSA) is integrating Fastly’s software into its nationwide network for low-latency streaming and edge AI. Edge delivery is one slice of the AI infrastructure story, and we rounded up seven other suppliers driving the expansion in a free report.

How Fastly’s Model Differs From Cloudflare and Akamai

Fastly earns most of its revenue from usage, so sales rise and fall with customer traffic, including occasional spikes like major video game launches, while Cloudflare relies mainly on subscription pricing and sells a broader platform spanning zero trust networking, developer tools and AI infrastructure.

Akamai pairs security and a mature delivery business with a fast-growing cloud infrastructure segment aimed at AI workloads, and that mix makes Fastly the most traffic-dependent pure play of the three.

Bear Case Centers on Concentration and a Sales Leadership Change

Elevated expectations set a high bar for Fastly. Q3 revenue at Fastly landed just above the top of the company’s own guidance range of $184 million to $190 million, and the Q4 outlook implies 16% growth at the midpoint. Concentration is rising, with Fastly’s top 10 customers at 39% of revenue versus 32% a year ago, while customers outside that group grew revenue only 8%.

CEO Kip Compton sees a growth path. He described expanding beyond the largest customers as “our biggest near-term opportunity and a clear execution priority.” Sales leadership is shifting, too, as Scott Lovett, Fastly’s president of go-to-market, plans to retire in 2027 while the company searches for a new chief revenue officer. Backlog softened in the quarter, with Fastly’s remaining performance obligations slipping to $333.5 million from $340.9 million in Q2.

Fastly still posted a net loss of $11.3 million in the quarter under generally accepted accounting principles. Scale is another gap, since Fastly’s $2.44 billion market value is a fraction of Cloudflare’s or Akamai’s. Volatility cuts both ways, and Fastly stock has fallen on each of its last three earnings reports despite beating estimates each time.

Fastly’s Rebound Case Hinges on Sales Execution

The next test for Fastly is clear. It must deliver on Q4 guidance, which assumes heavy download traffic from the Grand Theft Auto 6 launch alongside holiday shopping, NFL activity and the midterm elections. Watch for progress in Fastly’s search for a new chief revenue officer and for any shift in broader software mood.

Bulls can point to six straight earnings beats at Fastly, a raised outlook, fast security growth and positive free cash flow. On the other side, the bears see a company that’s still losing money, leaning harder on its biggest customers and changing sales leaders while Fastly stock swings sharply on every report. More clarity on Fastly’s sales leadership search could help investors before they draw any firm conclusions.

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David Moadel

David Moadel is financial writer specializing in stocks, ETFs, options, precious metals, and Bitcoin. David has written well over 1,000 articles for leading online publications, helping investors understand markets, income strategies, and risk.His work has appeared in The Motley Fool, InvestorPlace, U.S. News & World Report, TipRanks, ValueWalk, Benzinga, Market Realist, TalkMarkets, Finmasters, 24/7 Wall St., and others.With a master’s degree in education, David has taught at the elementary, high school, and college levels. That teaching background shapes his writing style: clear, educational, and practical. David has also built a loyal social-media audience by providing trustworthy financial content on YouTube, X/Twitter, and StockTwits.

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