Fortinet (MEX:FTNT) Cyclically Adjusted Book per Share: MXN19.18 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

MEX:FTNT Fortinet Inc MEX:FTNT
89 GF Score
Price MXN2,900.09
GF Value MXN1,735.74
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is Fortinet Cyclically Adjusted Book per Share?

Fortinet MEX:FTNT +2.62% 89 Cyclically Adjusted Book per Share is MXN19.18 as of Mar. 2026. GuruFocus rates MEX:FTNT with a GF Score™ of 89/100 and a GF Value™ of MXN1,735.74 (Significantly Overvalued). The stock has 5 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 Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Fortinet's adjusted book value per share for the three months ended in Mar. 2026 was MXN24.315. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is MXN19.18 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Fortinet's average Cyclically Adjusted Book Growth Rate was 8.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.30% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 1.00% 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 Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Fortinet was 14.10% per year. The lowest was -3.30% per year. And the median was 1.30% per year.

As of today (2026-07-15), Fortinet's current stock price is MXN2900.09. Fortinet's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was MXN19.18. Fortinet's Cyclically Adjusted PB Ratio of today is 151.20.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Fortinet was 156.39. The lowest was 17.53. And the median was 55.78.


Fortinet  (MEX:FTNT) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB 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 PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Fortinet's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=2900.09/19.18
=151.20

* 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 PB Ratio of Fortinet was 156.39. The lowest was 17.53. And the median was 55.78.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Fortinet Cyclically Adjusted Book per Share Related Terms


Fortinet Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Fortinet's Cyclically Adjusted Book 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 Book per Share Chart

Fortinet Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 21.56 19.49 15.77 19.40 18.83

Fortinet Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book 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 20.12 19.34 18.99 18.83 19.18

MEX:FTNT vs SNPS, NET, CRWV: Cyclically Adjusted Book per Share Comparison

For the Software - Infrastructure subindustry, Fortinet's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 PB Ratio vs Software Industry

For the Software industry and Technology sector, Fortinet's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Fortinet's Cyclically Adjusted PB Ratio falls into.


MEX:FTNT
89GF Score
Fortinet Inc MEX:FTNT
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fortinet Cyclically Adjusted Book 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 Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

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

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value 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 Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book 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 Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=24.315/330.2130*330.2130
=24.315

Current CPI (Mar. 2026) = 330.2130.

Fortinet Quarterly Data

Book Value per Share CPI Adj_Book
201606 17.259 241.018 23.646
201609 18.344 241.428 25.090
201612 19.957 241.432 27.296
201703 19.280 243.801 26.114
201706 18.970 244.955 25.573
201709 18.753 246.819 25.089
201712 13.789 246.524 18.470
201803 14.999 249.554 19.847
201806 18.143 251.989 23.775
201809 19.586 252.439 25.620
201812 23.363 251.233 30.708
201903 24.048 254.202 31.239
201906 25.214 256.143 32.505
201909 27.669 256.759 35.585
201912 29.491 256.974 37.896
202003 15.468 258.115 19.789
202006 15.518 257.797 19.877
202009 19.415 260.280 24.631
202012 20.957 260.474 26.568
202103 24.554 264.877 30.611
202106 25.604 271.696 31.119
202109 28.140 274.310 33.875
202112 19.797 278.802 23.448
202203 5.408 287.504 6.211
202206 -10.026 296.311 -11.173
202209 -16.366 296.808 -18.208
202212 -7.025 296.797 -7.816
202303 0.262 301.836 0.287
202306 7.009 305.109 7.586
202309 1.663 307.789 1.784
202312 -10.336 306.746 -11.127
202403 -2.990 312.332 -3.161
202406 6.909 314.175 7.262
202409 23.352 315.301 24.456
202412 40.618 315.605 42.498
202503 52.204 319.799 53.904
202506 50.686 322.561 51.888
202509 18.152 324.800 18.455
202512 29.989 324.054 30.559
202603 24.315 330.213 24.315

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of MXN19.18 mean?
Fortinet (MEX:FTNT) has a Cyclically Adjusted Book per Share of MXN19.18 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Fortinet and its competitors.
Is Fortinet's Cyclically Adjusted Book per Share too high?
Fortinet's current Cyclically Adjusted Book per Share is MXN19.18. Overall, Fortinet has a GF Score™ of 89/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fortinet's Cyclically Adjusted Book per Share compare to SNPS and NET?
Fortinet's Cyclically Adjusted Book per Share of MXN19.18 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 Book per Share for a Software company?
A good Cyclically Adjusted Book per Share depends on the Software industry context. However, Cyclically Adjusted Book 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 Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Fortinet and its competitors. Fortinet's current Cyclically Adjusted Book per Share is MXN19.18. 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 (MEX:FTNT) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN1,735.74, compared to a current price of MXN2,900.09 — trading 67.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is MXN19.18. Fortinet's overall GF Score™ is 89/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Fortinet (MEX:FTNT), the current Cyclically Adjusted Book per Share is MXN19.18 as of Mar. 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 (MEX:FTNT) Overvalued in 2026?

Based on GuruFocus' analysis, Fortinet stock appears to be overvalued. The current stock price of MXN2,900.09 is trading 67.1% above its estimated GF Value™ of MXN1,735.74. GuruFocus considers Fortinet to be Significantly Overvalued.

Key valuation signals for MEX:FTNT:

  • Cyclically Adjusted Book per Share: MXN19.18
  • GF Value™: MXN1,735.74 vs. price of MXN2,900.09 (67.1% above fair value)
  • GF Score™: 89/100 with 5 warning signs

No single metric tells the full story. See the MEX:FTNT 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.
89GF Score

Get the complete analysis for MEX:FTNT

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

MXN2,900.09
Price
MXN1,735.74
GF Value