Federal Signal Rule of 40
The Rule of 40 of Federal Signal (FSS) as of Nov 5, 2026 is 33.50 %. In the previous year, Rule of 40 was 23.17 % — a change of 44.58% (higher).
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Rule of 40
33.50 %
YoY
44.58%
Last updated:
The Federal Signal Rule of 40 history
3 Years
10 Years
25 Years
Max
| YEAR | Rule of 40 | YoY |
|---|---|---|
| 33.50 % | +44.58% | |
| 23.17 % | -29.98% | |
| 33.10 % | +12.30% | |
| 29.47 % | +63.19% | |
| 18.06 % | +328.98% | |
| 4.21 % | -82.56% | |
| 24.14 % | -25.51% | |
| 32.41 % | -7.71% | |
| 35.12 % | +4,500.79% | |
| 0.76 % | -125.89% | |
| -2.95 % | — |
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Federal Signal Stock analysis
Frequently Asked Questions about Federal Signal stock
Rule of 40 of Federal Signal is 33.50 % in 2025.
On Eulerpool you can find the complete historical development of Rule of 40 Federal Signal since 2006 – with annual values, charts, and detailed analysis.
The Rule of 40 states that a company's revenue growth rate plus profit margin should exceed 40%. It is widely used to evaluate SaaS and high-growth companies.
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Quality — Federal Signal
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