IBDSF (Iberdrola) E10: $0.88 (As of Mar. 2026)


IBDSF Iberdrola SA IBDSF
72 GF Score
Price $24.17
GF Value $11.70
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Iberdrola E10?

Iberdrola IBDSF -0.86% 72 E10 is $0.88 as of Mar. 2026. GuruFocus rates IBDSF with a GF Score™ of 72/100 and a GF Value™ of $11.70 (Significantly Overvalued). The stock has 8 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.

Iberdrola's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.282. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $0.88 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Iberdrola's average E10 Growth Rate was 7.00% per year. During the past 3 years, the average E10 Growth Rate was 12.80% per year. During the past 5 years, the average E10 Growth Rate was 11.00% 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 Iberdrola was 12.80% per year. The lowest was 0.00% per year. And the median was 6.75% per year.

As of today (2026-06-24), Iberdrola's current stock price is $24.17. Iberdrola's E10 for the quarter that ended in Mar. 2026 was $0.88. Iberdrola's Shiller PE Ratio of today is 27.47.

During the past 13 years, the highest Shiller PE Ratio of Iberdrola was 28.02. The lowest was 12.53. And the median was 20.15.


Iberdrola  (OTCPK:IBDSF) 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.

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

Shiller PE Ratio=Share Price/E10
=24.17/0.88
=27.47

* 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 Iberdrola was 28.02. The lowest was 12.53. And the median was 20.15.


Be Aware

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


Iberdrola E10 Related Terms


Iberdrola E10 Historical Data

* Premium members only.

The historical data trend for Iberdrola'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.

Iberdrola E10 Chart

Iberdrola 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 0.56 0.56 0.66 0.72 0.89

Iberdrola 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 0.77 0.86 0.87 0.89 0.88

IBDSF vs SRE, AES: E10 Comparison

For the Utilities - Diversified subindustry, Iberdrola'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.


Iberdrola Shiller PE Ratio vs Utilities - Regulated Industry

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

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


IBDSF
72GF Score
Iberdrola SA IBDSF
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Iberdrola 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, Iberdrola'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)
=0.282/128.4016*128.4016
=0.282

Current CPI (Mar. 2026) = 128.4016.

Iberdrola Quarterly Data

per share eps CPI Adj_EPS
201606 0.091 100.333 0.116
201609 0.104 99.737 0.134
201612 0.093 101.842 0.117
201703 0.137 100.896 0.174
201706 0.126 101.848 0.159
201709 0.212 101.524 0.268
201712 0.073 102.975 0.091
201803 0.160 102.122 0.201
201806 0.093 104.165 0.115
201809 0.186 103.818 0.230
201812 0.168 104.193 0.207
201903 0.167 103.488 0.207
201906 0.116 104.612 0.142
201909 0.160 103.905 0.198
201912 0.119 105.015 0.146
202003 0.215 103.469 0.267
202006 0.100 104.254 0.123
202009 0.156 103.521 0.193
202012 0.135 104.456 0.166
202103 0.183 104.857 0.224
202106 0.086 107.102 0.103
202109 0.158 107.669 0.188
202112 0.267 111.298 0.308
202203 0.174 115.153 0.194
202206 0.160 118.044 0.174
202209 0.153 117.221 0.168
202212 0.172 117.650 0.188
202303 0.239 118.948 0.258
202306 0.165 120.278 0.176
202309 0.179 121.343 0.189
202312 0.400 121.300 0.423
202403 0.566 122.762 0.592
202406 0.237 124.409 0.245
202409 0.233 123.121 0.243
202412 0.247 124.753 0.254
202503 0.326 125.531 0.333
202506 0.288 127.251 0.291
202509 0.306 126.842 0.310
202512 0.130 128.402 0.130
202603 0.282 128.402 0.282

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 $0.88 mean?
Iberdrola (IBDSF) has a E10 of $0.88 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Iberdrola and its competitors.
Is Iberdrola's E10 too high?
Iberdrola's current E10 is $0.88. Overall, Iberdrola has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Iberdrola's E10 compare to SRE and AES?
Iberdrola's E10 of $0.88 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 Iberdrola and its competitors. Iberdrola's current E10 is $0.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Iberdrola stock overvalued right now?
Based on GuruFocus' analysis, Iberdrola (IBDSF) is currently considered Significantly Overvalued. The stock's GF Value™ is $11.70, compared to a current price of $24.17 — trading 106.6% above its estimated fair value. The current E10 is $0.88. Iberdrola's overall GF Score™ is 72/100 with 8 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 Iberdrola (IBDSF), the current E10 is $0.88 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 Iberdrola (IBDSF) Overvalued in 2026?

Based on GuruFocus' analysis, Iberdrola stock appears to be overvalued. The current stock price of $24.17 is trading 106.6% above its estimated GF Value™ of $11.70. GuruFocus considers Iberdrola to be Significantly Overvalued.

Key valuation signals for IBDSF:

  • E10: $0.88
  • GF Value™: $11.70 vs. price of $24.17 (106.6% above fair value)
  • GF Score™: 72/100 with 8 warning signs

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


Iberdrola Business Description

Address Plaza Euskadi Number 5, Biscay, Bilbao, ESP, 48009
Iberdrola is one of the largest utilities in the world with electric utility operations in nearly 40 countries. The company has a 58-gigawatt portfolio of hydro, wind, natural gas, and nuclear power plants. It is one of the largest owners of wind farms in the world, representing about 40% of its portfolio. Although the company has recently developed or acquired distribution and power generation assets in other geographic areas, Spain is still home to more than half of its power generation capacity. Iberdrola also owns and operates electricity distribution and transmission networks in Spain, the UK, Brazil, and the US.
72GF Score

Get the complete analysis for IBDSF

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

$24.17
Price
$11.70
GF Value