LNT (Alliant Energy) Cyclically Adjusted PB Ratio: (As of Aug. 08, 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.
Reviewed by: Charlie Tian Charlie Tian
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.

LNT Alliant Energy Corp LNT
77 GF Score
Price $69.37
GF Value $67.04
Valuation Fairly Valued
! 7 Warning Signs
View Full Analysis

What is Alliant Energy Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Alliant Energy  (NAS:LNT) 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.


Alliant Energy Cyclically Adjusted PB Ratio Related Terms


Alliant Energy Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Alliant 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.

Alliant Energy Cyclically Adjusted PB Ratio Chart

Alliant Energy 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 3.04 2.49 2.17 2.37 2.47

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 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 2.34 2.57 2.47 2.67 2.79

LNT vs EVRG, CMS, PNW: Cyclically Adjusted PB Ratio Comparison

For the Utilities - Regulated Electric subindustry, Alliant 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.


Alliant Energy Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

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

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


LNT
77GF Score
Alliant Energy Corp LNT
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Alliant 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.

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

For example, Alliant 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)
=28.858/333.9520*333.9520
=28.858

Current CPI (Jun. 2026) = 333.9520.

Alliant Energy Quarterly Data

Book Value per Share CPI Adj_Book
201609 16.963 241.428 23.464
201612 16.963 241.432 23.463
201703 17.105 243.801 23.430
201706 17.529 244.955 23.898
201709 17.968 246.819 24.311
201712 18.077 246.524 24.488
201803 18.280 249.554 24.462
201806 18.611 251.989 24.664
201809 19.371 252.439 25.626
201812 19.426 251.233 25.822
201903 19.724 254.202 25.912
201906 19.786 256.143 25.796
201909 20.675 256.759 26.891
201912 21.243 256.974 27.606
202003 22.053 258.115 28.532
202006 22.225 257.797 28.790
202009 22.858 260.280 29.328
202012 22.764 260.474 29.186
202103 23.052 264.877 29.064
202106 23.252 271.696 28.580
202109 23.905 274.310 29.103
202112 23.915 278.802 28.646
202203 24.229 287.504 28.143
202206 24.457 296.311 27.564
202209 24.958 296.808 28.081
202212 24.991 296.797 28.120
202303 25.172 301.836 27.850
202306 25.530 305.109 27.943
202309 26.358 307.789 28.599
202312 26.463 306.746 28.810
202403 26.590 312.332 28.431
202406 26.476 314.175 28.143
202409 27.155 315.301 28.761
202412 27.286 315.605 28.872
202503 27.613 319.799 28.835
202506 27.805 322.561 28.787
202509 28.426 324.800 29.227
202512 28.522 324.054 29.393
202603 28.737 330.213 29.062
202606 28.858 333.952 28.858

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 Alliant Energy (LNT) Overvalued in 2026?

Based on GuruFocus' analysis, Alliant Energy stock appears to be overvalued. The current stock price of $69.37 is trading 3.5% above its estimated GF Value™ of $67.04. GuruFocus considers Alliant Energy to be Fairly Valued.

Key valuation signals for LNT:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $67.04 vs. price of $69.37 (3.5% above fair value)
  • GF Score™: 77/100 with 7 warning signs

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


Alliant Energy Business Description

Other Exchanges 0HCT:UKAY1:Germany
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.
77GF Score

Get the complete analysis for LNT

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

$69.37
Price
$67.04
GF Value