Evaluating Fastly (FSLY) After A Sharp Swing And Conflicting Valuation Signals

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Recent share performance context

Fastly (FSLY) has drawn attention after a sharp share price move, with the stock down about 43% over the past month and roughly 10% over the past 3 months, despite a strong year to date gain.

See our latest analysis for Fastly.

The recent 1 day share price decline of 9.24% and 1 month share price return of down 42.76% contrast with a stronger year to date share price return of 77.33% and a 1 year total shareholder return of 135.90%. This suggests that momentum has recently faded after a strong run.

If you are weighing Fastly against other opportunities in digital infrastructure, it can be useful to compare it with a wider group of 48 AI infrastructure stocks

After such a sharp swing in the share price and with Fastly trading below some analyst and intrinsic estimates, investors may need to consider whether this is a reset that leaves potential upside on the table or whether the market is already banking on future growth.

Most Popular Narrative: 263.6% Overvalued

Fastly last closed at $18.07, while the most followed narrative, using a fair value of $4.97, points to a very rich price in comparison.

FSLY is one of those companies, offering Edge Computing services (processing data in localised servers rather than sending it to a central location). If the Agentic economy kicks off like many suspect, this company may be one of the stars of the scene. It has already been through its initial covid inspired boom / bust phase and has had a number of years to churn volume, kick out the impatient and await its next run. A quick glimpse at its chart and you see all its volume way down below price, and clear skies above.

Read the complete narrative.

Curious what sits behind that low fair value and high conviction on future demand? Drivers include revenue growth, profitability assumptions and a future earnings multiple that may surprise you.

Result: Fair Value of $4.97 (OVERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, investors still need to factor in risks such as ongoing net losses and any slowdown in revenue growth, which could cool enthusiasm around the AI edge narrative.

Find out about the key risks to this Fastly narrative.

Another take: cash flows point the other way

That 263.6% overvaluation call sits awkwardly next to our DCF model, which estimates a future cash flow value of $23.55 per share. With Fastly at $18.07, the stock is about 23% below that level. Which perspective do you think better reflects the risk you are willing to take?

Look into how the SWS DCF model arrives at its fair value.

FSLY Discounted Cash Flow as at Jun 2026
FSLY Discounted Cash Flow as at Jun 2026

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Fastly for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 49 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

The split views on Fastly's value make this a good moment to check the numbers yourself, act quickly, and decide where you stand using our 2 key rewards and 3 important warning signs

Ready for more investment ideas?

If Fastly has you thinking harder about risk and reward, do not stop here. Broaden your watchlist with other focused ideas that fit different goals.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com

About NasdaqGS:FSLY

Fastly

Operates an edge cloud platform for processing, serving, and securing its customer’s applications in the United States, the Asia Pacific, Europe, and internationally.

Flawless balance sheet with low risk.

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