FSS (Federal Signal) Cyclically Adjusted Book per Share: $15.33 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
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.

FSS Federal Signal Corp FSS
98 GF Score
Price $122.63
GF Value $125.59
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Federal Signal Cyclically Adjusted Book per Share?

Federal Signal FSS +0.53% 98 Cyclically Adjusted Book per Share is $15.33 as of Jun. 2026. GuruFocus rates FSS with a GF Score™ of 98/100 and a GF Value™ of $125.59 (Fairly Valued). The stock has 2 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.

Federal Signal's adjusted book value per share for the three months ended in Jun. 2026 was $24.698. 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 $15.33 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Federal Signal's average Cyclically Adjusted Book Growth Rate was 14.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 12.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 15.10% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 9.50% 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 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 Federal Signal was 17.10% per year. The lowest was -6.90% per year. And the median was 5.10% per year.

As of today (2026-08-19), Federal Signal's current stock price is $122.63. Federal Signal's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $15.33. Federal Signal's Cyclically Adjusted PB Ratio of today is 8.00.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Federal Signal was 9.56. The lowest was 1.95. And the median was 5.04.


Federal Signal  (NYSE:FSS) 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.

Federal Signal's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=122.63/15.33
=8.00

* 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 Federal Signal was 9.56. The lowest was 1.95. And the median was 5.04.


Be Aware

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


Federal Signal Cyclically Adjusted Book per Share Related Terms


Federal Signal Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Federal Signal'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.

Federal Signal Cyclically Adjusted Book per Share Chart

Federal Signal 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 8.27 9.83 11.16 12.53 14.15

Federal Signal Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 13.42 13.83 14.15 14.77 15.33

FSS vs TEX, AGCO, OSK: Cyclically Adjusted Book per Share Comparison

For the Farm & Heavy Construction Machinery subindustry, Federal Signal'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.


Federal Signal Cyclically Adjusted PB Ratio vs Farm & Heavy Construction Machinery Industry

For the Farm & Heavy Construction Machinery industry and Industrials sector, Federal Signal's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


FSS
98GF Score
Federal Signal Corp FSS
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Federal Signal 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, Federal Signal's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=24.698/333.9520*333.9520
=24.698

Current CPI (Jun. 2026) = 333.9520.

Federal Signal Quarterly Data

Book Value per Share CPI Adj_Book
201609 6.702 241.428 9.270
201612 6.612 241.432 9.146
201703 6.652 243.801 9.112
201706 6.885 244.955 9.386
201709 7.087 246.819 9.589
201712 7.623 246.524 10.326
201803 7.832 249.554 10.481
201806 8.179 251.989 10.839
201809 8.502 252.439 11.247
201812 8.806 251.233 11.705
201903 9.110 254.202 11.968
201906 9.611 256.143 12.531
201909 9.985 256.759 12.987
201912 10.605 256.974 13.782
202003 10.561 258.115 13.664
202006 10.847 257.797 14.051
202009 11.232 260.280 14.411
202012 11.605 260.474 14.879
202103 11.797 264.877 14.873
202106 12.203 271.696 14.999
202109 12.532 274.310 15.257
202112 12.874 278.802 15.421
202203 13.000 287.504 15.100
202206 13.346 296.311 15.041
202209 13.663 296.808 15.373
202212 14.183 296.797 15.959
202303 14.483 301.836 16.024
202306 15.148 305.109 16.580
202309 15.696 307.789 17.030
202312 16.425 306.746 17.882
202403 17.093 312.332 18.276
202406 17.983 314.175 19.115
202409 18.810 315.301 19.923
202412 19.412 315.605 20.540
202503 19.721 319.799 20.594
202506 20.763 322.561 21.496
202509 21.735 324.800 22.347
202512 22.693 324.054 23.386
202603 23.516 330.213 23.782
202606 24.698 333.952 24.698

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 $15.33 mean?
Federal Signal (FSS) has a Cyclically Adjusted Book per Share of $15.33 as of Jun. 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 Federal Signal and its competitors.
Is Federal Signal's Cyclically Adjusted Book per Share too high?
Federal Signal's current Cyclically Adjusted Book per Share is $15.33. Overall, Federal Signal has a GF Score™ of 98/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Federal Signal's Cyclically Adjusted Book per Share compare to TEX and AGCO?
Federal Signal's Cyclically Adjusted Book per Share of $15.33 can be compared against companies in the Farm & Heavy Construction Machinery 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 Farm & Heavy Construction Machinery company?
A good Cyclically Adjusted Book per Share depends on the Farm & Heavy Construction Machinery 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 Federal Signal and its competitors. Federal Signal's current Cyclically Adjusted Book per Share is $15.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Federal Signal stock overvalued right now?
Based on GuruFocus' analysis, Federal Signal (FSS) is currently considered Fairly Valued. The stock's GF Value™ is $125.59, compared to a current price of $122.63 — trading 2.4% below its estimated fair value. The current Cyclically Adjusted Book per Share is $15.33. Federal Signal's overall GF Score™ is 98/100 with 2 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 Federal Signal (FSS), the current Cyclically Adjusted Book per Share is $15.33 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 Federal Signal (FSS) Overvalued in 2026?

Based on GuruFocus' analysis, Federal Signal stock appears to be undervalued. The current stock price of $122.63 is trading 2.4% below its estimated GF Value™ of $125.59. GuruFocus considers Federal Signal to be Fairly Valued.

Key valuation signals for FSS:

  • Cyclically Adjusted Book per Share: $15.33
  • GF Value™: $125.59 vs. price of $122.63 (2.4% below fair value)
  • GF Score™: 98/100 with 2 warning signs

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


Federal Signal Business Description

Other Exchanges FSG:Germany
Address 1333 Butterfield Road, Downers Grove, IL, USA, 60515
Federal Signal Corp designs and manufactures products and integrated solutions for municipal, governmental, industrial, and airport customers. It operates through two segments. The Environmental Solutions Group manufactures and supplies street sweeper vehicles, sewer cleaner and vacuum loader trucks, hydro-excavation trucks, high-performance water blasting equipment, dump truck bodies, and trailers. The Safety and Security Systems Group manufactures and supplies comprehensive systems and products used by law enforcement, fire rescue, and industrial sites to protect people and property. Its offerings include systems for community alerting and industrial communications. The company generates the majority of its revenue from the Environmental Solutions Group segment.
98GF Score

Get the complete analysis for FSS

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

$122.63
Price
$125.59
GF Value