Atmos Energy (STU:AEO) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

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Director of Data and Quant Analytics at GuruFocus
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STU:AEO Atmos Energy Corp STU:AEO
81 GF Score
Price €139.40
GF Value €140.46
! 4 Warning Signs
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What is Atmos Energy Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Atmos Energy  (STU:AEO) 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.


Atmos Energy Cyclically Adjusted PB Ratio Related Terms


Atmos Energy Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Atmos Energy'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.

Atmos Energy Cyclically Adjusted PB Ratio Chart

Atmos Energy 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 2.08 2.39 2.02 2.28 2.42

Atmos Energy 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 2.25 2.44 2.39 2.58 2.38

STU:AEO vs NI, UGI, SWX: Cyclically Adjusted PB Ratio Comparison

For the Utilities - Regulated Gas subindustry, Atmos Energy'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.


Atmos Energy Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Atmos Energy's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:AEO
81GF Score
Atmos Energy Corp STU:AEO
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Atmos Energy 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.

Atmos Energy's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Atmos Energy'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)
=78.975/333.9520*333.9520
=78.975

Current CPI (Jun. 2026) = 333.9520.

Atmos Energy Quarterly Data

Book Value per Share CPI Adj_Book
201609 29.650 241.428 41.013
201612 33.365 241.432 46.151
201703 34.058 243.801 46.652
201706 32.254 244.955 43.973
201709 31.081 246.819 42.053
201712 34.250 246.524 46.397
201803 34.566 249.554 46.256
201806 36.661 251.989 48.586
201809 36.906 252.439 48.823
201812 40.024 251.233 53.202
201903 41.933 254.202 55.089
201906 41.916 256.143 54.649
201909 44.197 256.759 57.485
201912 44.650 256.974 58.025
202003 46.977 258.115 60.779
202006 46.639 257.797 60.416
202009 46.006 260.280 59.028
202012 46.002 260.474 58.979
202103 50.926 264.877 64.207
202106 50.121 271.696 61.606
202109 51.521 274.310 62.723
202112 53.826 278.802 64.473
202203 58.079 287.504 67.462
202206 63.374 296.311 71.425
202209 68.240 296.808 76.780
202212 64.381 296.797 72.441
202303 65.012 301.836 71.929
202306 65.972 305.109 72.209
202309 69.141 307.789 75.018
202312 67.659 306.746 73.660
202403 71.304 312.332 76.240
202406 73.230 314.175 77.840
202409 70.163 315.301 74.313
202412 77.759 315.605 82.279
202503 76.573 319.799 79.962
202506 71.040 322.561 73.549
202509 71.422 324.800 73.434
202512 73.512 324.054 75.757
202603 77.519 330.213 78.397
202606 78.975 333.952 78.975

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 Atmos Energy (STU:AEO) Overvalued in 2026?

Based on GuruFocus' analysis, Atmos Energy stock appears to be undervalued. The current stock price of €139.40 is trading 0.8% below its estimated GF Value™ of €140.46.

Key valuation signals for STU:AEO:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €140.46 vs. price of €139.40 (0.8% below fair value)
  • GF Score™: 81/100 with 4 warning signs

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


Atmos Energy Business Description

Other Exchanges ATO:USA1ATO:Italy
Address 5430 LBJ Freeway, Suite 1800, Three Lincoln Centre, Dallas, TX, USA, 75240
Atmos Energy is the largest publicly traded, fully regulated, pure-play natural gas utility in the United States, serving more than 3.3 million customers in Texas, Colorado, Kansas, Kentucky, Louisiana, Mississippi, Tennessee, and Virginia. About two thirds of its earnings come from Texas, where it distributes natural gas in northern Texas and owns an intrastate gas pipeline spanning several key shale gas formations and interconnected with five storage facilities.
81GF Score

Get the complete analysis for STU:AEO

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

€139.40
Price
€140.46
GF Value