NRG Energy (HAM:NRA) Cyclically Adjusted Book per Share: €7.55 (As of Mar. 2026)

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HAM:NRA NRG Energy Inc HAM:NRA
78 GF Score
Price €120.40
GF Value €99.83
Valuation Modestly Overvalued
! 9 Warning Signs
View Full Analysis

What is NRG Energy Cyclically Adjusted Book per Share?

NRG Energy HAM:NRA -1.63% 78 Cyclically Adjusted Book per Share is €7.55 as of Mar. 2026. GuruFocus rates HAM:NRA with a GF Score™ of 78/100 and a GF Value™ of €99.83 (Modestly Overvalued). The stock has 9 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

NRG Energy's adjusted book value per share for the three months ended in Mar. 2026 was €17.173. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €7.55 for the trailing ten years ended in Mar. 2026.

During the past 12 months, NRG Energy's average Cyclically Adjusted Book Growth Rate was -12.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -17.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -13.70% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -11.10% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of NRG Energy was 20.20% per year. The lowest was -17.80% per year. And the median was -5.50% per year.

As of today (2026-07-13), NRG Energy's current stock price is €120.40. NRG Energy's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €7.55. NRG Energy's Cyclically Adjusted PB Ratio of today is 15.95.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of NRG Energy was 20.98. The lowest was 0.37. And the median was 2.17.


NRG Energy  (HAM:NRA) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

NRG Energy's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=120.40/7.55
=15.95

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of NRG Energy was 20.98. The lowest was 0.37. And the median was 2.17.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


NRG Energy Cyclically Adjusted Book per Share Related Terms


NRG Energy Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for NRG Energy's Cyclically Adjusted Book per Share 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.

NRG Energy Cyclically Adjusted Book per Share Chart

NRG Energy Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 7.32

NRG Energy Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share 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 0.00 0.00 0.00 7.32 7.55

HAM:NRA vs TLN, OKLO, VST: Cyclically Adjusted Book per Share Comparison

For the Utilities - Independent Power Producers subindustry, NRG 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.


NRG Energy Cyclically Adjusted PB Ratio vs Utilities - Independent Power Producers Industry

For the Utilities - Independent Power Producers industry and Utilities sector, NRG Energy's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


HAM:NRA
78GF Score
NRG Energy Inc HAM:NRA
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

NRG Energy Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

For example, NRG Energy's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=17.173/330.2130*330.2130
=17.173

Current CPI (Mar. 2026) = 330.2130.

NRG Energy Quarterly Data

Book Value per Share CPI Adj_Book
201606 7.127 241.018 9.765
201609 8.592 241.428 11.752
201612 6.134 241.432 8.390
201703 4.807 243.801 6.511
201706 2.874 244.955 3.874
201709 3.135 246.819 4.194
201712 -0.923 246.524 -1.236
201803 -0.345 249.554 -0.457
201806 -1.033 251.989 -1.354
201809 -2.767 252.439 -3.619
201812 -3.824 251.233 -5.026
201903 -5.088 254.202 -6.609
201906 -5.641 256.143 -7.272
201909 -5.661 256.759 -7.281
201912 5.993 256.974 7.701
202003 5.659 258.115 7.240
202006 6.365 257.797 8.153
202009 6.725 260.280 8.532
202012 5.654 260.474 7.168
202103 5.208 264.877 6.493
202106 8.626 271.696 10.484
202109 14.161 274.310 17.047
202112 13.071 278.802 15.481
202203 19.093 287.504 21.929
202206 21.322 296.311 23.762
202209 22.321 296.808 24.833
202212 15.741 296.797 17.513
202303 9.870 301.836 10.798
202306 10.743 305.109 11.627
202309 11.718 307.789 12.572
202312 9.940 306.746 10.700
202403 11.699 312.332 12.369
202406 13.311 314.175 13.990
202409 8.222 315.301 8.611
202412 8.790 315.605 9.197
202503 10.015 319.799 10.341
202506 7.297 322.561 7.470
202509 5.850 324.800 5.947
202512 4.625 324.054 4.713
202603 17.173 330.213 17.173

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of €7.55 mean?
NRG Energy (HAM:NRA) has a Cyclically Adjusted Book per Share of €7.55 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on NRG Energy and its competitors.
Is NRG Energy's Cyclically Adjusted Book per Share too high?
NRG Energy's current Cyclically Adjusted Book per Share is €7.55. Overall, NRG Energy has a GF Score™ of 78/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does NRG Energy's Cyclically Adjusted Book per Share compare to TLN and OKLO?
NRG Energy's Cyclically Adjusted Book per Share of €7.55 can be compared against companies in the Utilities - Independent Power Producers industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for an Utilities - Independent Power Producers company?
A good Cyclically Adjusted Book per Share depends on the Utilities - Independent Power Producers industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on NRG Energy and its competitors. NRG Energy's current Cyclically Adjusted Book per Share is €7.55. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is NRG Energy stock overvalued right now?
Based on GuruFocus' analysis, NRG Energy (HAM:NRA) is currently considered Modestly Overvalued. The stock's GF Value™ is €99.83, compared to a current price of €120.40 — trading 20.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is €7.55. NRG Energy's overall GF Score™ is 78/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For NRG Energy (HAM:NRA), the current Cyclically Adjusted Book per Share is €7.55 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is NRG Energy (HAM:NRA) Overvalued in 2026?

Based on GuruFocus' analysis, NRG Energy stock appears to be overvalued. The current stock price of €120.40 is trading 20.6% above its estimated GF Value™ of €99.83. GuruFocus considers NRG Energy to be Modestly Overvalued.

Key valuation signals for HAM:NRA:

  • Cyclically Adjusted Book per Share: €7.55
  • GF Value™: €99.83 vs. price of €120.40 (20.6% above fair value)
  • GF Score™: 78/100 with 9 warning signs

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


NRG Energy Business Description

Address 1301 McKinney Street, Houston, TX, USA, 77010
NRG Energy is one of the largest retail energy providers in the US, with 6 million customers. Vivint Smart Home, which NRG acquired in 2023, has 2 million home-services customers. NRG also is one of the largest US independent power producers, with 26 gigawatts of coal, gas, and oil power generation capacity in Texas and the Eastern US. NRG exited Chapter 11 bankruptcy as a stand-alone entity in December 2003.
78GF Score

Get the complete analysis for HAM:NRA

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

€120.40
Price
€99.83
GF Value