AT&T (STU:SOBA) Cyclically Adjusted PS Ratio: (As of Jul. 23, 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.

STU:SOBA AT&T Inc STU:SOBA
73 GF Score
Price €20.18
GF Value €20.77
Valuation Fairly Valued
! 3 Warning Signs
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What is AT&T Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


AT&T  (STU:SOBA) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue 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 PS Ratio should give similar results to regular PS Ratio.


AT&T Cyclically Adjusted PS Ratio Related Terms


AT&T Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for AT&T's Cyclically Adjusted PS 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 PS Ratio Chart

AT&T Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.69 0.67 0.62 0.87 0.99

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 PS 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 1.12 1.10 0.99 1.15 0.00

STU:SOBA vs VZ, TMUS, CMCSA: Cyclically Adjusted PS Ratio Comparison

For the Telecom Services subindustry, AT&T's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS 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 PS Ratio vs Telecommunication Services Industry

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

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


STU:SOBA
73GF Score
AT&T Inc STU:SOBA
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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AT&T Cyclically Adjusted PS Ratio Calculation

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

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

For example, AT&T's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=3.944/333.9520*333.9520
=3.944

Current CPI (Jun. 2026) = 333.9520.

AT&T Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 5.887 241.428 8.143
201612 6.415 241.432 8.873
201703 5.950 243.801 8.150
201706 5.733 244.955 7.816
201709 5.384 246.819 7.285
201712 5.698 246.524 7.719
201803 4.992 249.554 6.680
201806 5.236 251.989 6.939
201809 5.355 252.439 7.084
201812 5.752 251.233 7.646
201903 5.403 254.202 7.098
201906 5.411 256.143 7.055
201909 5.504 256.759 7.159
201912 5.739 256.974 7.458
202003 5.367 258.115 6.944
202006 5.072 257.797 6.570
202009 5.011 260.280 6.429
202012 1.681 260.474 2.155
202103 4.933 264.877 6.219
202106 3.964 271.696 4.872
202109 3.547 274.310 4.318
202112 3.650 278.802 4.372
202203 3.570 287.504 4.147
202206 3.684 296.311 4.152
202209 3.968 296.808 4.465
202212 3.928 296.797 4.420
202303 3.766 301.836 4.167
202306 3.846 305.109 4.210
202309 3.958 307.789 4.294
202312 4.083 306.746 4.445
202403 3.841 312.332 4.107
202406 3.846 314.175 4.088
202409 3.777 315.301 4.000
202412 4.269 315.605 4.517
202503 3.922 319.799 4.096
202506 3.705 322.561 3.836
202509 3.650 324.800 3.753
202512 4.021 324.054 4.144
202603 3.878 330.213 3.922
202606 3.944 333.952 3.944

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue 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 AT&T (STU:SOBA) Overvalued in 2026?

Based on GuruFocus' analysis, AT&T stock appears to be undervalued. The current stock price of €20.18 is trading 2.8% below its estimated GF Value™ of €20.77. GuruFocus considers AT&T to be Fairly Valued.

Key valuation signals for STU:SOBA:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: €20.77 vs. price of €20.18 (2.8% below fair value)
  • GF Score™: 73/100 with 3 warning signs

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


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.
73GF Score

Get the complete analysis for STU:SOBA

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

€20.18
Price
€20.77
GF Value