Federal Signal (STU:FSG) Cyclically Adjusted PB Ratio: (As of Aug. 03, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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.

STU:FSG Federal Signal Corp STU:FSG
99 GF Score
Price €107.00
GF Value €106.46
Valuation Fairly Valued
! 1 Warning Sign
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What is Federal Signal Cyclically Adjusted PB Ratio?

Note: If the price history is too short, we do not calculate current Cyclically Adjusted PB Ratio for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


Federal Signal  (STU:FSG) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Federal Signal Cyclically Adjusted PB Ratio Related Terms


Federal Signal Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Federal Signal's Cyclically Adjusted PB Ratio 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 PB Ratio Chart

Federal Signal Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 5.24 4.73 6.88 7.37 7.68

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 PB Ratio 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 7.93 8.60 7.68 7.32 8.38

STU:FSG vs TEX, AGCO, OSK: Cyclically Adjusted PB Ratio 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.


STU:FSG
99GF Score
Federal Signal Corp STU:FSG
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Federal Signal Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Federal Signal's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

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)
=21.438/333.9520*333.9520
=21.438

Current CPI (Jun. 2026) = 333.9520.

Federal Signal Quarterly Data

Book Value per Share CPI Adj_Book
201609 5.972 241.428 8.261
201612 6.269 241.432 8.671
201703 6.220 243.801 8.520
201706 6.127 244.955 8.353
201709 5.946 246.819 8.045
201712 6.442 246.524 8.727
201803 6.351 249.554 8.499
201806 7.002 251.989 9.279
201809 7.286 252.439 9.639
201812 7.740 251.233 10.288
201903 8.062 254.202 10.591
201906 8.506 256.143 11.090
201909 9.067 256.759 11.793
201912 9.544 256.974 12.403
202003 9.557 258.115 12.365
202006 9.632 257.797 12.477
202009 9.536 260.280 12.235
202012 9.539 260.474 12.230
202103 9.909 264.877 12.493
202106 10.129 271.696 12.450
202109 10.652 274.310 12.968
202112 11.393 278.802 13.647
202203 11.804 287.504 13.711
202206 12.625 296.311 14.229
202209 13.800 296.808 15.527
202212 13.389 296.797 15.065
202303 13.527 301.836 14.966
202306 13.981 305.109 15.303
202309 14.707 307.789 15.957
202312 15.061 306.746 16.397
202403 15.726 312.332 16.815
202406 16.706 314.175 17.758
202409 16.948 315.301 17.951
202412 18.539 315.605 19.617
202503 18.242 319.799 19.049
202506 18.001 322.561 18.637
202509 18.518 324.800 19.040
202512 19.380 324.054 19.972
202603 20.341 330.213 20.571
202606 21.438 333.952 21.438

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

Is Federal Signal (STU:FSG) Overvalued in 2026?

Based on GuruFocus' analysis, Federal Signal stock appears to be overvalued. The current stock price of €107.00 is trading 0.5% above its estimated GF Value™ of €106.46. GuruFocus considers Federal Signal to be Fairly Valued.

Key valuation signals for STU:FSG:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €106.46 vs. price of €107.00 (0.5% above fair value)
  • GF Score™: 99/100 with 1 warning sign

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


Federal Signal Business Description

Other Exchanges FSS:USAFSG: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.
99GF Score

Get the complete analysis for STU:FSG

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

€107.00
Price
€106.46
GF Value