REN-Redes Energeticas Nacionais Sgps (HAM:RN4) Cyclically Adjusted Book per Share: €2.46 (As of Mar. 2026)


HAM:RN4 REN-Redes Energeticas Nacionais Sgps SA HAM:RN4
83 GF Score
Price €3.68
GF Value €2.85
Valuation Modestly Overvalued
! 11 Warning Signs
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What is REN-Redes Energeticas Nacionais Sgps Cyclically Adjusted Book per Share?

REN-Redes Energeticas Nacionais Sgps HAM:RN4 -0.68% 83 Cyclically Adjusted Book per Share is €2.46 as of Mar. 2026. GuruFocus rates HAM:RN4 with a GF Score™ of 83/100 and a GF Value™ of €2.85 (Modestly Overvalued). The stock has 11 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.

REN-Redes Energeticas Nacionais Sgps's adjusted book value per share for the three months ended in Mar. 2026 was €2.355. 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 €2.46 for the trailing ten years ended in Mar. 2026.

During the past 12 months, REN-Redes Energeticas Nacionais Sgps's average Cyclically Adjusted Book Growth Rate was 0.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 3.90% 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 REN-Redes Energeticas Nacionais Sgps was 5.00% per year. The lowest was 1.20% per year. And the median was 3.25% per year.

As of today (2026-07-03), REN-Redes Energeticas Nacionais Sgps's current stock price is €3.675. REN-Redes Energeticas Nacionais Sgps's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €2.46. REN-Redes Energeticas Nacionais Sgps's Cyclically Adjusted PB Ratio of today is 1.49.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of REN-Redes Energeticas Nacionais Sgps was 1.60. The lowest was 0.90. And the median was 1.20.


REN-Redes Energeticas Nacionais Sgps  (HAM:RN4) 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.

REN-Redes Energeticas Nacionais Sgps's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=3.675/2.46
=1.49

* 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 REN-Redes Energeticas Nacionais Sgps was 1.60. The lowest was 0.90. And the median was 1.20.


Be Aware

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


REN-Redes Energeticas Nacionais Sgps Cyclically Adjusted Book per Share Related Terms


REN-Redes Energeticas Nacionais Sgps Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for REN-Redes Energeticas Nacionais Sgps'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.

REN-Redes Energeticas Nacionais Sgps Cyclically Adjusted Book per Share Chart

REN-Redes Energeticas Nacionais Sgps 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 2.45

REN-Redes Energeticas Nacionais Sgps 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 2.45 2.46

HAM:RN4 vs SRE, AES: Cyclically Adjusted Book per Share Comparison

For the Utilities - Diversified subindustry, REN-Redes Energeticas Nacionais Sgps'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.


REN-Redes Energeticas Nacionais Sgps Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, REN-Redes Energeticas Nacionais Sgps's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where REN-Redes Energeticas Nacionais Sgps's Cyclically Adjusted PB Ratio falls into.


HAM:RN4
83GF Score
REN-Redes Energeticas Nacionais Sgps SA HAM:RN4
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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REN-Redes Energeticas Nacionais Sgps 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, REN-Redes Energeticas Nacionais Sgps'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)
=2.355/125.9400*125.9400
=2.355

Current CPI (Mar. 2026) = 125.9400.

REN-Redes Energeticas Nacionais Sgps Quarterly Data

Book Value per Share CPI Adj_Book
201606 1.960 101.319 2.436
201609 2.005 101.122 2.497
201612 2.062 100.998 2.571
201703 2.092 101.924 2.585
201706 1.985 102.240 2.445
201709 2.038 102.527 2.503
201712 2.155 102.479 2.648
201803 2.172 102.626 2.665
201806 2.076 103.790 2.519
201809 2.142 103.960 2.595
201812 2.207 103.159 2.694
201903 2.220 103.495 2.701
201906 2.094 104.192 2.531
201909 2.153 103.844 2.611
201912 2.180 103.592 2.650
202003 2.169 103.544 2.638
202006 2.055 104.323 2.481
202009 2.086 103.699 2.533
202012 2.122 103.354 2.586
202103 2.138 104.014 2.589
202106 2.016 104.852 2.421
202109 2.062 105.232 2.468
202112 2.125 106.191 2.520
202203 2.202 109.559 2.531
202206 2.134 114.003 2.357
202209 2.227 114.999 2.439
202212 2.288 116.377 2.476
202303 2.310 117.701 2.472
202306 2.220 117.872 2.372
202309 2.250 119.111 2.379
202312 2.280 118.032 2.433
202403 2.276 120.396 2.381
202406 2.194 121.165 2.280
202409 2.231 121.574 2.311
202412 2.340 121.585 2.424
202503 2.361 122.624 2.425
202506 2.229 124.042 2.263
202509 2.270 124.490 2.296
202512 2.298 124.240 2.329
202603 2.355 125.940 2.355

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 €2.46 mean?
REN-Redes Energeticas Nacionais Sgps (HAM:RN4) has a Cyclically Adjusted Book per Share of €2.46 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 REN-Redes Energeticas Nacionais Sgps and its competitors.
Is REN-Redes Energeticas Nacionais Sgps' Cyclically Adjusted Book per Share too high?
REN-Redes Energeticas Nacionais Sgps' current Cyclically Adjusted Book per Share is €2.46. Overall, REN-Redes Energeticas Nacionais Sgps has a GF Score™ of 83/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does REN-Redes Energeticas Nacionais Sgps' Cyclically Adjusted Book per Share compare to SRE and AES?
REN-Redes Energeticas Nacionais Sgps' Cyclically Adjusted Book per Share of €2.46 can be compared against companies in the Utilities - Regulated 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 - Regulated company?
A good Cyclically Adjusted Book per Share depends on the Utilities - Regulated 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 REN-Redes Energeticas Nacionais Sgps and its competitors. REN-Redes Energeticas Nacionais Sgps's current Cyclically Adjusted Book per Share is €2.46. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is REN-Redes Energeticas Nacionais Sgps stock overvalued right now?
Based on GuruFocus' analysis, REN-Redes Energeticas Nacionais Sgps (HAM:RN4) is currently considered Modestly Overvalued. The stock's GF Value™ is €2.85, compared to a current price of €3.68 — trading 28.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is €2.46. REN-Redes Energeticas Nacionais Sgps' overall GF Score™ is 83/100 with 11 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 REN-Redes Energeticas Nacionais Sgps (HAM:RN4), the current Cyclically Adjusted Book per Share is €2.46 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 REN-Redes Energeticas Nacionais Sgps (HAM:RN4) Overvalued in 2026?

Based on GuruFocus' analysis, REN-Redes Energeticas Nacionais Sgps stock appears to be overvalued. The current stock price of €3.68 is trading 28.9% above its estimated GF Value™ of €2.85. GuruFocus considers REN-Redes Energeticas Nacionais Sgps to be Modestly Overvalued.

Key valuation signals for HAM:RN4:

  • Cyclically Adjusted Book per Share: €2.46
  • GF Value™: €2.85 vs. price of €3.68 (28.9% above fair value)
  • GF Score™: 83/100 with 11 warning signs

No single metric tells the full story. See the HAM:RN4 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


REN-Redes Energeticas Nacionais Sgps Business Description

Address Avenida Estados Unidos da America, 55, Lisbon, PRT, 1749-061
REN-Redes Energeticas Nacionais Sgps SA is an energy and utility company that operates as the primary concession holder for electricity transmission and natural gas transportation in Portugal. It manages the national high-voltage electricity grid, high-pressure natural gas pipelines, LNG terminal, and underground storage, focusing on energy transition, sustainability, and security of supply. The Group presently has two main business segments, Electricity and Gas, and a secondary business of Telecommunications.
83GF Score

Get the complete analysis for HAM:RN4

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

€3.68
Price
€2.85
GF Value