T-Mobile US (LIM:TMUS) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan 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.

LIM:TMUS T-Mobile US Inc LIM:TMUS
60 GF Score
Price $182.29
GF Value $265.45
Valuation Possible Value Trap
! 1 Warning Sign
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What is T-Mobile US Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


T-Mobile US  (LIM:TMUS) 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.


T-Mobile US Cyclically Adjusted PB Ratio Related Terms


T-Mobile US Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for T-Mobile US'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.

T-Mobile US Cyclically Adjusted PB Ratio Chart

T-Mobile US 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 3.97 3.72 3.77 3.79 4.77

T-Mobile US 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 5.07 4.97 4.87 4.73 3.69

LIM:TMUS vs VZ, T, CMCSA: Cyclically Adjusted PB Ratio Comparison

For the Telecom Services subindustry, T-Mobile US'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.


T-Mobile US Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, T-Mobile US's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where T-Mobile US's Cyclically Adjusted PB Ratio falls into.


LIM:TMUS
60GF Score
T-Mobile US Inc LIM:TMUS
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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T-Mobile US 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.

T-Mobile US's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, T-Mobile US'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)
=52.348/333.9520*333.9520
=52.348

Current CPI (Jun. 2026) = 333.9520.

T-Mobile US Quarterly Data

Book Value per Share CPI Adj_Book
201609 21.626 241.428 29.914
201612 22.027 241.432 30.468
201703 22.783 243.801 31.208
201706 23.559 244.955 32.118
201709 24.327 246.819 32.915
201712 26.201 246.524 35.493
201803 26.767 249.554 35.819
201806 27.557 251.989 36.520
201809 28.655 252.439 37.908
201812 29.020 251.233 38.575
201903 30.587 254.202 40.183
201906 31.502 256.143 41.071
201909 32.400 256.759 42.141
201912 33.534 256.974 43.579
202003 33.588 258.115 43.457
202006 50.912 257.797 65.952
202009 51.986 260.280 66.701
202012 52.620 260.474 67.464
202103 53.239 264.877 67.123
202106 54.066 271.696 66.455
202109 54.784 274.310 66.695
202112 55.316 278.802 66.258
202203 55.831 287.504 64.851
202206 55.848 296.311 62.942
202209 56.115 296.808 63.138
202212 56.449 296.797 63.516
202303 55.553 301.836 61.464
202306 55.702 305.109 60.968
202309 55.679 307.789 60.412
202312 54.118 306.746 58.918
202403 52.728 312.332 56.378
202406 53.683 314.175 57.062
202409 55.168 315.301 58.431
202412 53.942 315.605 57.078
202503 53.726 319.799 56.104
202506 54.199 322.561 56.113
202509 54.069 324.800 55.593
202512 53.484 324.054 55.118
202603 51.460 330.213 52.043
202606 52.348 333.952 52.348

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 T-Mobile US (LIM:TMUS) Overvalued in 2026?

Based on GuruFocus' analysis, T-Mobile US stock appears to be undervalued. The current stock price of $182.29 is trading 31.3% below its estimated GF Value™ of $265.45. GuruFocus considers T-Mobile US to be Possible Value Trap.

Key valuation signals for LIM:TMUS:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $265.45 vs. price of $182.29 (31.3% below fair value)
  • GF Score™: 60/100 with 1 warning sign

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


T-Mobile US Business Description

Address 12920 SE 38th Street, Bellevue, WA, USA, 98006-1350
Deutsche Telekom merged its T-Mobile USA unit with prepaid specialist MetroPCS in 2013, and that firm merged with Sprint in 2020, creating the second-largest wireless carrier in the US. T-Mobile now serves about 86 million postpaid and 26 million prepaid phone customers, equal to around 30% of the US retail wireless market. The firm entered the fixed-wireless broadband market aggressively in 2021 and now serves 8 million residential and business customers with its wireless network. It also serves 1 million fiber broadband customers through joint ventures with fiber network owners. T-Mobile owns a stake in these firms, which provide wholesale access to their networks. In addition, T-Mobile provides wholesale services to wireless resellers.
60GF Score

Get the complete analysis for LIM:TMUS

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

$182.29
Price
$265.45
GF Value