FSLYFastly, Inc.

$29.33+240% 1Y

Is the business good?

Mixed

The checks split: nothing decisive, though margins widening.

1 good, 1 neutral, 2 without data
Fundamental health (F-score)6 / 9SEC EDGAR · Dec 31, 2025

Mixed fundamental signals. Nine pass/fail tests of year-over-year health from the filings.

Margin direction, 3 years+33.3 ptsderived

Operating margin has widened over the past few years, the business is getting more profitable per dollar of sales.

Where this answer is blind. The F-score rewards improvement, so an already-elite company can score mid-pack.

How good a business is FSLY?

Fastly, Inc. earns −6.7% on the capital it employs against a 9.0% cost of capital, so growth costs more than it returns.

−6.7%

Return on invested capital · cost of capital 9.0% · 16 points below what the capital costs: growth destroys value

Operating margin
−12%

Operating margin · Software - Application median 6.4% · 12 months to Q2 2026

Share count, year on year
+8.1%

Share count, year on year · shareholders own a smaller slice than a year ago

R&D as % of revenue
24%

R&D as % of revenue

Operating margin by fiscal year
YearOperating margin
FY2020−37%
FY2021−62%
FY2022−57%
FY2023−39%
FY2024−31%
FY2025−19%
Details›
Gross margin12 months to Q2 2026
61%
Operating margin12 months to Q2 2026
−12%
Net margin12 months to Q2 2026
−12%
Free cash flow margin
7.4%
R&D as % of revenue
24%
Revenue, trailing twelve months
$687M
Free cash flow, trailing twelve months
$51M
Net income, trailing twelve months
−$81M
Return on invested capitaloperating profit after tax ÷ debt + equity − cash
−6.7%

Margins, capital and share counts from the statements as filed with the SEC; cash conversion is operating cash flow over operating profit after tax.

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