ACEA SpA (CHIX:ACEM) E10: €1.55 (As of Mar. 2026)


CHIX:ACEM ACEA SpA CHIX:ACEM
70 GF Score
Price €21.38
GF Value €14.80
Valuation Significantly Overvalued
! 4 Warning Signs
View Full Analysis

What is ACEA SpA E10?

ACEA SpA CHIX:ACEM 70 E10 is €1.55 as of Mar. 2026. GuruFocus rates CHIX:ACEM with a GF Score™ of 70/100 and a GF Value™ of €14.80 (Significantly Overvalued). The stock has 4 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

ACEA SpA's adjusted earnings per share data for the three months ended in Mar. 2026 was €0.520. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €1.55 for the trailing ten years ended in Mar. 2026.

During the past 12 months, ACEA SpA's average E10 Growth Rate was 8.20% per year. During the past 3 years, the average E10 Growth Rate was 7.00% per year. During the past 5 years, the average E10 Growth Rate was 10.90% 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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of ACEA SpA was 16.50% per year. The lowest was 7.00% per year. And the median was 14.50% per year.

As of today (2026-06-26), ACEA SpA's current stock price is €21.38. ACEA SpA's E10 for the quarter that ended in Mar. 2026 was €1.55. ACEA SpA's Shiller PE Ratio of today is 13.79.

During the past 13 years, the highest Shiller PE Ratio of ACEA SpA was 28.27. The lowest was 7.81. And the median was 17.94.


ACEA SpA  (CHIX:ACEm) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

ACEA SpA's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=21.38/1.55
=13.79

* 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 Shiller P/E Ratio of ACEA SpA was 28.27. The lowest was 7.81. And the median was 17.94.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


ACEA SpA E10 Related Terms


ACEA SpA E10 Historical Data

* Premium members only.

The historical data trend for ACEA SpA's E10 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 E10 Chart

ACEA SpA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.07 1.33 1.15 1.37 1.55

ACEA SpA Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
E10 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 1.47 1.40 1.55 1.55 1.55

CHIX:ACEM vs SRE: E10 Comparison

For the Utilities - Diversified subindustry, ACEA SpA's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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 Shiller PE Ratio vs Utilities - Regulated Industry

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

* The bar in red indicates where ACEA SpA's Shiller PE Ratio falls into.


CHIX:ACEM
70GF Score
ACEA SpA CHIX:ACEM
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ACEA SpA E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

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 earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.52/122.6000*122.6000
=0.520

Current CPI (Mar. 2026) = 122.6000.

ACEA SpA Quarterly Data

per share eps CPI Adj_EPS
201606 0.389 99.900 0.477
201609 0.242 100.100 0.296
201612 0.289 100.300 0.353
201703 0.309 101.000 0.375
201706 0.178 101.100 0.216
201709 0.231 101.200 0.280
201712 0.132 101.200 0.160
201803 0.363 101.800 0.437
201806 0.307 102.400 0.368
201809 0.339 102.600 0.405
201812 0.264 102.300 0.316
201903 0.355 102.800 0.423
201906 0.344 103.100 0.409
201909 0.357 102.900 0.425
201912 0.305 102.800 0.364
202003 0.332 102.900 0.396
202006 0.344 102.900 0.410
202009 0.353 102.300 0.423
202012 0.311 102.600 0.372
202103 0.391 103.700 0.462
202106 0.389 104.200 0.458
202109 0.389 104.900 0.455
202112 0.304 106.600 0.350
202203 0.468 110.400 0.520
202206 0.393 112.500 0.428
202209 0.350 114.200 0.376
202212 0.102 119.000 0.105
202303 0.342 118.800 0.353
202306 0.329 119.700 0.337
202309 0.315 120.300 0.321
202312 0.397 119.700 0.407
202403 0.388 120.200 0.396
202406 0.419 120.700 0.426
202409 0.533 121.200 0.539
202412 0.219 121.200 0.222
202503 0.460 122.500 0.460
202506 0.605 122.700 0.605
202509 0.887 123.100 0.883
202512 0.307 122.600 0.307
202603 0.520 122.600 0.520

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of €1.55 mean?
ACEA SpA (CHIX:ACEM) has a E10 of €1.55 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on ACEA SpA and its competitors.
Is ACEA SpA's E10 too high?
ACEA SpA's current E10 is €1.55. Overall, ACEA SpA has a GF Score™ of 70/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does ACEA SpA's E10 compare to SRE?
ACEA SpA's E10 of €1.55 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 E10 for an Utilities - Regulated company?
A good E10 depends on the Utilities - Regulated industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on ACEA SpA and its competitors. ACEA SpA's current E10 is €1.55. 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?
Based on GuruFocus' analysis, ACEA SpA (CHIX:ACEM) is currently considered Significantly Overvalued. The stock's GF Value™ is €14.80, compared to a current price of €21.38 — trading 44.5% above its estimated fair value. The current E10 is €1.55. ACEA SpA's overall GF Score™ is 70/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For ACEA SpA (CHIX:ACEM), the current E10 is €1.55 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 ACEA SpA (CHIX:ACEM) Overvalued in 2026?

Based on GuruFocus' analysis, ACEA SpA stock appears to be overvalued. The current stock price of €21.38 is trading 44.5% above its estimated GF Value™ of €14.80. GuruFocus considers ACEA SpA to be Significantly Overvalued.

Key valuation signals for CHIX:ACEM:

  • E10: €1.55
  • GF Value™: €14.80 vs. price of €21.38 (44.5% above fair value)
  • GF Score™: 70/100 with 4 warning signs

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


ACEA SpA Business Description

Other Exchanges ACE:Italy0MHD:UKDCA:Germany
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.
70GF Score

Get the complete analysis for CHIX:ACEM

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€21.38
Price
€14.80
GF Value