WAB (Westinghouse Air Brake Technologies) Cyclically Adjusted PB Ratio: (As of Sep. 20, 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.
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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.

WAB Westinghouse Air Brake Technologies Corp WAB
87 GF Score
Price $280.23
GF Value $228.01
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Westinghouse Air Brake Technologies Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Westinghouse Air Brake Technologies  (NYSE:WAB) 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.


Westinghouse Air Brake Technologies Cyclically Adjusted PB Ratio Related Terms


Westinghouse Air Brake Technologies Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Westinghouse Air Brake Technologies'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.

Westinghouse Air Brake Technologies Cyclically Adjusted PB Ratio Chart

Westinghouse Air Brake Technologies 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 2.62 2.42 2.73 3.71 3.77

Westinghouse Air Brake Technologies 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 3.96 3.70 3.88 4.38 4.59

WAB vs NSC, CSX, TRN: Cyclically Adjusted PB Ratio Comparison

For the Railroads subindustry, Westinghouse Air Brake Technologies'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.


Westinghouse Air Brake Technologies Cyclically Adjusted PB Ratio vs Transportation Industry

For the Transportation industry and Industrials sector, Westinghouse Air Brake Technologies's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Westinghouse Air Brake Technologies's Cyclically Adjusted PB Ratio falls into.


WAB
87GF Score
Westinghouse Air Brake Technologies Corp WAB
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Westinghouse Air Brake Technologies 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.

Westinghouse Air Brake Technologies's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Westinghouse Air Brake Technologies'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)
=66.493/333.9520*333.9520
=66.493

Current CPI (Jun. 2026) = 333.9520.

Westinghouse Air Brake Technologies Quarterly Data

Book Value per Share CPI Adj_Book
201609 19.429 241.428 26.875
201612 31.195 241.432 43.149
201703 24.701 243.801 33.835
201706 26.925 244.955 36.707
201709 28.504 246.819 38.567
201712 29.453 246.524 39.898
201803 31.054 249.554 41.556
201806 29.824 251.989 39.525
201809 30.126 252.439 39.854
201812 29.696 251.233 39.473
201903 60.070 254.202 78.916
201906 52.264 256.143 68.140
201909 50.759 256.759 66.019
201912 52.132 256.974 67.748
202003 51.492 258.115 66.621
202006 51.921 257.797 67.259
202009 52.824 260.280 67.776
202012 53.746 260.474 68.907
202103 53.876 264.877 67.926
202106 54.644 271.696 67.165
202109 54.557 274.310 66.419
202112 55.108 278.802 66.009
202203 55.156 287.504 64.067
202206 54.684 296.311 61.631
202209 54.563 296.808 61.391
202212 55.999 296.797 63.009
202303 56.363 301.836 62.360
202306 57.102 305.109 62.500
202309 57.884 307.789 62.804
202312 59.190 306.746 64.440
202403 59.412 312.332 63.525
202406 59.909 314.175 63.680
202409 59.866 315.301 63.407
202412 59.154 315.605 62.593
202503 60.865 319.799 63.559
202506 63.458 322.561 65.699
202509 64.921 324.800 66.750
202512 65.592 324.054 67.595
202603 65.633 330.213 66.376
202606 66.493 333.952 66.493

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 Westinghouse Air Brake Technologies (WAB) Overvalued in 2026?

Based on GuruFocus' analysis, Westinghouse Air Brake Technologies stock appears to be overvalued. The current stock price of $280.23 is trading 22.9% above its estimated GF Value™ of $228.01. GuruFocus considers Westinghouse Air Brake Technologies to be Modestly Overvalued.

Key valuation signals for WAB:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $228.01 vs. price of $280.23 (22.9% above fair value)
  • GF Score™: 87/100 with 6 warning signs

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


Westinghouse Air Brake Technologies Business Description

Address 30 Isabella Street, Pittsburgh, PA, USA, 15212
Westinghouse Air Brake Technologies Corp provides value-added, technology-based products and services for the freight rail and passenger transit industries and the mining, marine, and industrial markets. It provides its products and services through two main business segments: Freight and Transit. The company generates maximum revenue from the Freight segment, which manufactures new and modernized locomotives, provides aftermarket parts and services to existing locomotives, provides components to new and existing freight cars; builds new commuter locomotives; supplies rail control and infrastructure products, including electronics, positive train control equipment, signal design, and engineering services. Geographically, it generates a majority of its revenue from the United States.
87GF Score

Get the complete analysis for WAB

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

$280.23
Price
$228.01
GF Value