AT&T (MIC:T-RM) Cyclically Adjusted PB Ratio: (As of Aug. 03, 2026)

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Director of Data and Quant Analytics at GuruFocus
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What is AT&T 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


AT&T  (MIC:T-RM) 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.


AT&T Cyclically Adjusted PB Ratio Related Terms


AT&T Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for AT&T'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.

AT&T Cyclically Adjusted PB Ratio Chart

AT&T 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 0.79 0.75 0.68 0.93 1.03

AT&T 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 1.18 1.15 1.03 1.19 0.85

MIC:T-RM vs TMUS, VZ, CMCSA: Cyclically Adjusted PB Ratio Comparison

For the Telecom Services subindustry, AT&T'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.


AT&T Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

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

* The bar in red indicates where AT&T's Cyclically Adjusted PB Ratio falls into.



AT&T 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.

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

For example, AT&T'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)
=16.056/333.9520*333.9520
=16.056

Current CPI (Jun. 2026) = 333.9520.

AT&T Quarterly Data

Book Value per Share CPI Adj_Book
201609 20.130 241.428 27.845
201612 20.058 241.432 27.744
201703 20.145 243.801 27.594
201706 20.314 244.955 27.694
201709 20.354 246.819 27.539
201712 22.944 246.524 31.081
201803 23.736 249.554 31.763
201806 25.205 251.989 33.403
201809 25.288 252.439 33.454
201812 25.281 251.233 33.605
201903 25.367 254.202 33.325
201906 25.223 256.143 32.885
201909 25.064 256.759 32.599
201912 25.394 256.974 33.001
202003 24.951 258.115 32.282
202006 24.686 257.797 31.978
202009 24.639 260.280 31.613
202012 22.688 260.474 29.088
202103 23.178 264.877 29.222
202106 22.731 271.696 27.940
202109 22.937 274.310 27.924
202112 23.292 278.802 27.899
202203 23.612 287.504 27.427
202206 16.524 296.311 18.623
202209 17.177 296.808 19.327
202212 13.678 296.797 15.390
202303 13.903 301.836 15.382
202306 14.253 305.109 15.600
202309 14.505 307.789 15.738
202312 14.447 306.746 15.728
202403 14.580 312.332 15.589
202406 14.687 314.175 15.612
202409 14.266 315.301 15.110
202412 14.545 315.605 15.391
202503 14.418 319.799 15.056
202506 14.700 322.561 15.219
202509 15.573 324.800 16.012
202512 15.706 324.054 16.186
202603 15.745 330.213 15.923
202606 16.056 333.952 16.056

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.


AT&T Business Description

Address 208 S. Akard Street, Dallas, TX, USA, 75202
The wireless business contributes nearly 70% of AT&T's revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential services, about 11% of revenue, primarily consist of in-home broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 25 million wireless customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider DirecTV to its partner, private equity firm TPG.