Alliant Energy (STU:AY1) Cyclically Adjusted PS Ratio: (As of Aug. 03, 2026)

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Director of Data and Quant Analytics at GuruFocus
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STU:AY1 Alliant Energy Corp STU:AY1
79 GF Score
Price €61.25
GF Value €57.21
Valuation Fairly Valued
! 8 Warning Signs
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What is Alliant Energy Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Alliant Energy  (STU:AY1) 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.


Alliant Energy Cyclically Adjusted PS Ratio Related Terms


Alliant Energy Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Alliant Energy'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.

Alliant Energy Cyclically Adjusted PS Ratio Chart

Alliant Energy 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 3.70 3.14 2.88 3.31 3.60

Alliant 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 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 3.34 3.71 3.60 3.91 0.00

STU:AY1 vs EVRG, CMS, PNW: Cyclically Adjusted PS Ratio Comparison

For the Utilities - Regulated Electric subindustry, Alliant Energy'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.


Alliant Energy Cyclically Adjusted PS Ratio vs Utilities - Regulated Industry

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

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


STU:AY1
79GF Score
Alliant Energy Corp STU:AY1
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Alliant Energy 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.

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

For example, Alliant Energy'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)
=3.23/333.9520*333.9520
=3.230

Current CPI (Jun. 2026) = 333.9520.

Alliant Energy Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 3.626 241.428 5.016
201612 3.323 241.432 4.596
201703 3.508 243.801 4.805
201706 2.974 244.955 4.055
201709 3.294 246.819 4.457
201712 3.129 246.524 4.239
201803 3.211 249.554 4.297
201806 3.011 251.989 3.990
201809 3.384 252.439 4.477
201812 3.256 251.233 4.328
201903 3.693 254.202 4.852
201906 2.937 256.143 3.829
201909 3.747 256.759 4.874
201912 3.281 256.974 4.264
202003 3.389 258.115 4.385
202006 2.712 257.797 3.513
202009 3.124 260.280 4.008
202012 2.681 260.474 3.437
202103 3.023 264.877 3.811
202106 2.706 271.696 3.326
202109 3.470 274.310 4.224
202112 3.269 278.802 3.916
202203 3.865 287.504 4.489
202206 3.553 296.311 4.004
202209 4.562 296.808 5.133
202212 3.971 296.797 4.468
202303 4.001 301.836 4.427
202306 3.342 305.109 3.658
202309 3.976 307.789 4.314
202312 3.442 306.746 3.747
202403 3.698 312.332 3.954
202406 3.235 314.175 3.439
202409 3.791 315.301 4.015
202412 3.625 315.605 3.836
202503 4.057 319.799 4.237
202506 3.238 322.561 3.352
202509 3.999 324.800 4.112
202512 3.512 324.054 3.619
202603 3.957 330.213 4.002
202606 3.230 333.952 3.230

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 Alliant Energy (STU:AY1) Overvalued in 2026?

Based on GuruFocus' analysis, Alliant Energy stock appears to be overvalued. The current stock price of €61.25 is trading 7.1% above its estimated GF Value™ of €57.21. GuruFocus considers Alliant Energy to be Fairly Valued.

Key valuation signals for STU:AY1:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: €57.21 vs. price of €61.25 (7.1% above fair value)
  • GF Score™: 79/100 with 8 warning signs

No single metric tells the full story. See the STU:AY1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Alliant Energy Business Description

Other Exchanges LNT:USA0HCT:UK
Address 4902 North Biltmore Lane, Madison, WI, USA, 53718
Alliant Energy is the parent of two regulated utilities, Interstate Power and Light and Wisconsin Power and Light. Together, IPL and WPL serve nearly 1 million electric customers and 425,000 natural gas-only customers. Both subsidiaries engage in the generation and distribution of electricity and the distribution and transportation of natural gas. Alliant also owns a 16% interest in American Transmission.
79GF Score

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

€61.25
Price
€57.21
GF Value