TransDigm Group (MIL:1TDG) Cyclically Adjusted PB Ratio: (As of Aug. 03, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

MIL:1TDG TransDigm Group Inc MIL:1TDG
89 GF Score
Price €1,060.00
GF Value €1,361.32
! 5 Warning Signs
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What is TransDigm Group Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


TransDigm Group  (MIL:1TDG) 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.


TransDigm Group Cyclically Adjusted PB Ratio Related Terms


TransDigm Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for TransDigm Group'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.

TransDigm Group Cyclically Adjusted PB Ratio Chart

TransDigm Group Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

TransDigm Group Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 0.00 0.00 0.00 0.00 0.00

MIL:1TDG vs HONA, NOC, LHX: Cyclically Adjusted PB Ratio Comparison

For the Aerospace & Defense subindustry, TransDigm Group'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.


TransDigm Group Cyclically Adjusted PB Ratio vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, TransDigm Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


MIL:1TDG
89GF Score
TransDigm Group Inc MIL:1TDG
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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TransDigm Group 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.

TransDigm Group's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, TransDigm Group'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)
=-145.297/330.2130*330.2130
=-145.297

Current CPI (Mar. 2026) = 330.2130.

TransDigm Group Quarterly Data

Book Value per Share CPI Adj_Book
201606 -13.505 241.018 -18.503
201609 -10.884 241.428 -14.887
201612 -33.276 241.432 -45.512
201703 -36.649 243.801 -49.639
201706 -32.512 244.955 -43.828
201709 -47.677 246.819 -63.786
201712 -42.145 246.524 -56.452
201803 -35.774 249.554 -47.337
201806 -34.179 251.989 -44.789
201809 -29.390 252.439 -38.445
201812 -27.727 251.233 -36.444
201903 -24.843 254.202 -32.272
201906 -21.943 256.143 -28.288
201909 -49.152 256.759 -63.213
201912 -72.210 256.974 -92.790
202003 -70.494 258.115 -90.185
202006 -68.555 257.797 -87.812
202009 -61.974 260.280 -78.625
202012 -56.068 260.474 -71.080
202103 -54.018 264.877 -67.342
202106 -47.292 271.696 -57.478
202109 -44.898 274.310 -54.048
202112 -42.046 278.802 -49.799
202203 -48.241 287.504 -55.407
202206 -51.926 296.311 -57.867
202209 -70.100 296.808 -77.990
202212 -57.801 296.797 -64.309
202303 -49.369 301.836 -54.010
202306 -40.071 305.109 -43.368
202309 -33.613 307.789 -36.062
202312 -58.020 306.746 -62.459
202403 -49.821 312.332 -52.673
202406 -41.709 314.175 -43.838
202409 -100.813 315.301 -105.581
202412 -106.567 315.605 -111.500
202503 -93.300 319.799 -96.338
202506 -77.031 322.561 -78.858
202509 -146.383 324.800 -148.823
202512 -140.370 324.054 -143.038
202603 -145.297 330.213 -145.297

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 TransDigm Group (MIL:1TDG) Overvalued in 2026?

Based on GuruFocus' analysis, TransDigm Group stock appears to be undervalued. The current stock price of €1,060.00 is trading 22.1% below its estimated GF Value™ of €1,361.32.

Key valuation signals for MIL:1TDG:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €1,361.32 vs. price of €1,060.00 (22.1% below fair value)
  • GF Score™: 89/100 with 5 warning signs

No single metric tells the full story. See the MIL:1TDG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


TransDigm Group Business Description

Address 1350 Euclid Avenue, Suite 1600, Cleveland, OH, USA, 44115
TransDigm manufactures and services a broad set of specialized parts for commercial and military aircraft. The firm organizes itself in three segments: power and control, airframes, and a small non-aviation segment, which serves mostly off-road vehicles and mining equipment. It operates as an acquisitive holding company that focuses on buying up smaller firms that make proprietary aerospace products with substantial aftermarket demand. TransDigm regularly employs financial leverage to amplify its operating results.
89GF Score

Get the complete analysis for MIL:1TDG

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

€1,060.00
Price
€1,361.32
GF Value