ACEJF (ACEA SpA) Cyclically Adjusted Book per Share: $12.07 (As of Jun. 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.

ACEJF ACEA SpA ACEJF
67 GF Score
Price $23.30
GF Value $19.98
! 6 Warning Signs
View Full Analysis

What is ACEA SpA Cyclically Adjusted Book per Share?

ACEA SpA ACEJF +4.72% 67 Cyclically Adjusted Book per Share is $12.07 as of Jun. 2026. GuruFocus rates ACEJF with a GF Score™ of 67/100 and a GF Value™ of $19.98. The stock has 6 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.

ACEA SpA's adjusted book value per share for the three months ended in Jun. 2026 was $16.152. 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 $12.07 for the trailing ten years ended in Jun. 2026.

During the past 12 months, ACEA SpA's average Cyclically Adjusted Book Growth Rate was 7.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.70% 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 ACEA SpA was 9.40% per year. The lowest was 2.60% per year. And the median was 4.80% per year.

As of today (2026-08-20), ACEA SpA's current stock price is $23.30. ACEA SpA's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $12.07. ACEA SpA's Cyclically Adjusted PB Ratio of today is 1.93.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of ACEA SpA was 2.96. The lowest was 1.08. And the median was 1.96.


ACEA SpA  (OTCPK:ACEJF) 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.

ACEA SpA's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=23.30/12.07
=1.93

* 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 ACEA SpA was 2.96. The lowest was 1.08. And the median was 1.96.


Be Aware

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


ACEA SpA Cyclically Adjusted Book per Share Related Terms


ACEA SpA Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for ACEA SpA'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.

ACEA SpA Cyclically Adjusted Book per Share Chart

ACEA SpA 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 8.54 10.17 8.06 10.45 11.27

ACEA SpA Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 11.90 12.05 11.27 11.46 12.07

ACEJF vs SRE: Cyclically Adjusted Book per Share Comparison

For the Utilities - Diversified subindustry, ACEA SpA'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.


ACEA SpA Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

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

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


ACEJF
67GF Score
ACEA SpA ACEJF
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ACEA SpA 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, ACEA SpA'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)
=16.152/126.4000*126.4000
=16.152

Current CPI (Jun. 2026) = 126.4000.

ACEA SpA Quarterly Data

Book Value per Share CPI Adj_Book
201609 8.487 100.100 10.717
201612 8.294 100.300 10.452
201703 8.794 101.000 11.006
201706 8.751 101.100 10.941
201709 9.544 101.200 11.921
201712 9.563 101.200 11.944
201803 9.418 101.800 11.694
201806 8.655 102.400 10.684
201809 9.134 102.600 11.253
201812 9.258 102.300 11.439
201903 9.543 102.800 11.734
201906 9.088 103.100 11.142
201909 9.234 102.900 11.343
201912 9.696 102.800 11.922
202003 10.020 102.900 12.308
202006 9.718 102.900 11.937
202009 10.566 102.300 13.055
202012 11.246 102.600 13.855
202103 11.500 103.700 14.017
202106 11.137 104.200 13.510
202109 11.446 104.900 13.792
202112 11.291 106.600 13.388
202203 11.480 110.400 13.144
202206 10.680 112.500 12.000
202209 10.178 114.200 11.265
202212 11.419 119.000 12.129
202303 11.994 118.800 12.761
202306 11.486 119.700 12.129
202309 11.525 120.300 12.109
202312 12.197 119.700 12.880
202403 12.597 120.200 13.247
202406 11.938 120.700 12.502
202409 12.857 121.200 13.409
202412 12.341 121.200 12.870
202503 13.287 122.500 13.710
202506 13.726 122.700 14.140
202509 14.988 123.100 15.390
202512 15.320 122.600 15.795
202603 15.697 124.560 15.929
202606 16.152 126.400 16.152

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 $12.07 mean?
ACEA SpA (ACEJF) has a Cyclically Adjusted Book per Share of $12.07 as of Jun. 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 ACEA SpA and its competitors.
Is ACEA SpA's Cyclically Adjusted Book per Share too high?
ACEA SpA's current Cyclically Adjusted Book per Share is $12.07. Overall, ACEA SpA has a GF Score™ of 67/100, reflecting its overall financial health beyond just this single metric.
How does ACEA SpA's Cyclically Adjusted Book per Share compare to SRE?
ACEA SpA's Cyclically Adjusted Book per Share of $12.07 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 ACEA SpA and its competitors. ACEA SpA's current Cyclically Adjusted Book per Share is $12.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ACEA SpA stock overvalued right now?
ACEA SpA (ACEJF) has a current Cyclically Adjusted Book per Share of $12.07. The stock's GF Value™ is $19.98, compared to a current price of $23.30 — trading 16.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is $12.07. ACEA SpA's overall GF Score™ is 67/100 with 6 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 ACEA SpA (ACEJF), the current Cyclically Adjusted Book per Share is $12.07 as of Jun. 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 ACEA SpA (ACEJF) Overvalued in 2026?

Based on GuruFocus' analysis, ACEA SpA stock appears to be overvalued. The current stock price of $23.30 is trading 16.6% above its estimated GF Value™ of $19.98.

Key valuation signals for ACEJF:

  • Cyclically Adjusted Book per Share: $12.07
  • GF Value™: $19.98 vs. price of $23.30 (16.6% above fair value)
  • GF Score™: 67/100 with 6 warning signs

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


ACEA SpA Business Description

Address Piazzale Ostiense, 2, Roma, ITA, 00154
ACEA SpA is an Italian-based electricity and water utility company. It operates chiefly in Rome and other cities in Lazio, a central Italian region. With the help of its various subsidiaries and numerous ventures, Acea produces and sells energy, utilities, and environmental products and services. The operating segments of the firm include: Water, Networks and Public Lighting, Environment, Production, Commercial, and Engineering & Infrastructure Projects.
67GF Score

Get the complete analysis for ACEJF

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

$23.30
Price
$19.98
GF Value