FST Rule of 40
The Rule of 40 of FST (KBSX) as of Oct 9, 2026 is 26.56 %. In the previous year, Rule of 40 was 17.06 % — a change of 55.72% (higher).
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Rule of 40
26.56 %
YoY
55.72%
Last updated:
Rule of 40 of FST is 2025 26.56 % . Rule of 40 of FST was 2024 17.06 % . It decreases by 55.72% higher compared to the previous year.
The FST Rule of 40 history
3 Years
10 Years
25 Years
Max
Rule of 40
Date
Rule of 40
Jan 1, 2018
4.29 USD
Jan 1, 2019
22.99 USD
Jan 1, 2020
28.56 USD
Jan 1, 2021
49.03 USD
Jan 1, 2022
48.53 USD
Jan 1, 2023
-53.14 USD
Jan 1, 2024
17.06 USD
Jan 1, 2025
26.56 USD
| YEAR | Rule of 40 | YoY |
|---|---|---|
| 26.56 % | +55.72% | |
| 17.06 % | -132.09% | |
| -53.14 % | -209.51% | |
| 48.53 % | -1.01% | |
| 49.03 % | +71.66% | |
| 28.56 % | +24.24% | |
| 22.99 % | +435.66% | |
| 4.29 % | -92.56% | |
| 57.72 % | +1,304.74% | |
| 4.11 % | — |
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FST Stock analysis
What does FST do? FST is one of the most popular companies on Eulerpool.
Frequently Asked Questions about FST stock
Rule of 40 of FST is 26.56 % in 2025.
On Eulerpool you can find the complete historical development of Rule of 40 FST 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 — FST
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