Fortinet (STU:FO8) Cyclically Adjusted FCF per Share: €1.65 (As of Jun. 2026)

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STU:FO8 Fortinet Inc STU:FO8
87 GF Score
Price €138.10
GF Value €90.53
Valuation Significantly Overvalued
! 4 Warning Signs
View Full Analysis

What is Fortinet Cyclically Adjusted FCF per Share?

Fortinet STU:FO8 -3.76% 87 Cyclically Adjusted FCF per Share is €1.65 as of Jun. 2026. GuruFocus rates STU:FO8 with a GF Score™ of 87/100 and a GF Value™ of €90.53 (Significantly Overvalued). The stock has 4 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

Fortinet's adjusted free cash flow per share for the three months ended in Jun. 2026 was €1.133. Add all the adjusted free cash flow per share for the past 10 years together and divide the count will get our Cyclically Adjusted FCF per Share, which is €1.65 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Fortinet's average Cyclically Adjusted FCF Growth Rate was 30.30% per year. During the past 3 years, the average Cyclically Adjusted FCF Growth Rate was 24.70% per year. During the past 5 years, the average Cyclically Adjusted FCF Growth Rate was 27.50% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted FCF Growth Rate using Cyclically Adjusted FCF per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted FCF Growth Rate of Fortinet was 31.60% per year. The lowest was 24.70% per year. And the median was 29.50% per year.

As of today (2026-08-16), Fortinet's current stock price is €138.10. Fortinet's Cyclically Adjusted FCF per Share for the quarter that ended in Jun. 2026 was €1.65. Fortinet's Cyclically Adjusted Price-to-FCF of today is 83.70.

During the past 13 years, the highest Cyclically Adjusted Price-to-FCF of Fortinet was 118.31. The lowest was 43.75. And the median was 63.54.


Fortinet  (STU:FO8) Cyclically Adjusted FCF per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted FCF per Share may underestimate the company's free cash flow. Cyclically Adjusted Price-to-FCF can seem to be too high even the actual Price-to-Free-Cash-Flow is low.

For the Cyclically Adjusted Price-to-FCF, the free cash flow per share of the past 10 years are inflation-adjusted and averaged. The result is used for P/FCF calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted Price-to-FCF is also called CAPFCF Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted free cash flow per share of a company over the past 10 years.

Fortinet's Cyclically Adjusted Price-to-FCF of today is calculated as

Cyclically Adjusted Price-to-FCF=Share Price/Cyclically Adjusted FCF per Share
=138.10/1.65
=83.70

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

During the past 13 years, the highest Cyclically Adjusted Price-to-FCF of Fortinet was 118.31. The lowest was 43.75. And the median was 63.54.


Be Aware

Cyclically Adjusted Price-to-FCF works better for cyclical companies. It gives you a better idea on the company's real free cash flow value.


Fortinet Cyclically Adjusted FCF per Share Related Terms


Fortinet Cyclically Adjusted FCF per Share Historical Data

* Premium members only.

The historical data trend for Fortinet's Cyclically Adjusted FCF per Share can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Fortinet Cyclically Adjusted FCF per Share Chart

Fortinet Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted FCF per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.57 0.76 0.96 1.27 1.37

Fortinet Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted FCF per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.23 1.32 1.37 1.50 1.65

STU:FO8 vs NET, SNPS, XYZ: Cyclically Adjusted FCF per Share Comparison

For the Software - Infrastructure subindustry, Fortinet's Cyclically Adjusted Price-to-FCF, along with its competitors' market caps and Cyclically Adjusted Price-to-FCF data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Fortinet Cyclically Adjusted Price-to-FCF vs Software Industry

For the Software industry and Technology sector, Fortinet's Cyclically Adjusted Price-to-FCF distribution charts can be found below:

* The bar in red indicates where Fortinet's Cyclically Adjusted Price-to-FCF falls into.


STU:FO8
87GF Score
Fortinet Inc STU:FO8
Cyclically Adjusted FCF per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fortinet Cyclically Adjusted FCF per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.

What is Cyclically Adjusted FCF per Share? How do we calculate Cyclically Adjusted FCF per Share?

Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted FCF per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the free cash flow per share from 2001 through 2010.

We adjusted the 2001 free cash flow per share data with the total inflation from 2001 through 2010 to the equivalent free cash flow in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's free cash flow is $1 a share in 2001, then the 2001's equivalent free cash flow in 2010 is $1.4 a share. If Wal-Mart's free cash flow is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 free cash flow in 2010 is $1.35. So on and so forth, you get the equivalent free cash flow per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted FCF per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Fortinet's adjusted Free Cash Flow per Share data for the three months ended in Jun. 2026 was:

Adj_FreeCashFlowPerShare= Free Cash Flow per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.133/333.9520*333.9520
=1.133

Current CPI (Jun. 2026) = 333.9520.

Fortinet Quarterly Data

Free Cash Flow per Share CPI Adj_FreeCashFlowPerShare
201609 0.070 241.428 0.097
201612 0.090 241.432 0.124
201703 0.122 243.801 0.167
201706 0.058 244.955 0.079
201709 0.132 246.819 0.179
201712 0.139 246.524 0.188
201803 0.121 249.554 0.162
201806 0.129 251.989 0.171
201809 0.155 252.439 0.205
201812 0.169 251.233 0.225
201903 0.194 254.202 0.255
201906 0.180 256.143 0.235
201909 0.212 256.759 0.276
201912 0.147 256.974 0.191
202003 0.303 258.115 0.392
202006 0.232 257.797 0.301
202009 0.190 260.280 0.244
202012 0.263 260.474 0.337
202103 0.266 264.877 0.335
202106 0.392 271.696 0.482
202109 0.334 274.310 0.407
202112 0.228 278.802 0.273
202203 0.303 287.504 0.352
202206 0.331 296.311 0.373
202209 0.500 296.808 0.563
202212 0.593 296.797 0.667
202303 0.762 301.836 0.843
202306 0.508 305.109 0.556
202309 0.570 307.789 0.618
202312 0.196 306.746 0.213
202403 0.727 312.332 0.777
202406 0.385 314.175 0.409
202409 0.667 315.301 0.706
202412 0.468 315.605 0.495
202503 0.949 319.799 0.991
202506 0.319 322.561 0.330
202509 0.635 324.800 0.653
202512 0.659 324.054 0.679
202603 1.172 330.213 1.185
202606 1.133 333.952 1.133

Add all the adjusted free cash flow per share together and divide 10 will get our Cyclically Adjusted FCF per Share.

What does a Cyclically Adjusted FCF per Share of €1.65 mean?
Fortinet (STU:FO8) has a Cyclically Adjusted FCF per Share of €1.65 as of Jun. 2026. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on Fortinet and its competitors.
Is Fortinet's Cyclically Adjusted FCF per Share too high?
Fortinet's current Cyclically Adjusted FCF per Share is €1.65. Overall, Fortinet has a GF Score™ of 87/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fortinet's Cyclically Adjusted FCF per Share compare to NET and SNPS?
Fortinet's Cyclically Adjusted FCF per Share of €1.65 can be compared against companies in the Software industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted FCF per Share for a Software company?
A good Cyclically Adjusted FCF per Share depends on the Software industry context. However, Cyclically Adjusted FCF per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted FCF per Share mean?
A high Cyclically Adjusted FCF per Share can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on Fortinet and its competitors. Fortinet's current Cyclically Adjusted FCF per Share is €1.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fortinet stock overvalued right now?
Based on GuruFocus' analysis, Fortinet (STU:FO8) is currently considered Significantly Overvalued. The stock's GF Value™ is €90.53, compared to a current price of €138.10 — trading 52.5% above its estimated fair value. The current Cyclically Adjusted FCF per Share is €1.65. Fortinet's overall GF Score™ is 87/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted FCF per Share calculated?
Cyclically Adjusted FCF per Share is calculated from a company's financial statements. For Fortinet (STU:FO8), the current Cyclically Adjusted FCF per Share is €1.65 as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Fortinet (STU:FO8) Overvalued in 2026?

Based on GuruFocus' analysis, Fortinet stock appears to be overvalued. The current stock price of €138.10 is trading 52.5% above its estimated GF Value™ of €90.53. GuruFocus considers Fortinet to be Significantly Overvalued.

Key valuation signals for STU:FO8:

  • Cyclically Adjusted FCF per Share: €1.65
  • GF Value™: €90.53 vs. price of €138.10 (52.5% above fair value)
  • GF Score™: 87/100 with 4 warning signs

No single metric tells the full story. See the STU:FO8 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Fortinet Business Description

Address 909 Kifer Road, Sunnyvale, CA, USA, 94086
Fortinet is a platform-based cybersecurity vendor with product offerings covering network security, cloud security, zero-trust access, and security operations. The firm derives a majority of its revenue through sales of its subscriptions and support-based business. The California-based firm has more than 800,000 customers across the world.
87GF Score

Get the complete analysis for STU:FO8

Cyclically Adjusted FCF per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€138.10
Price
€90.53
GF Value