Idacorp (FRA:IDJ) E10: €5.02 (As of Mar. 2026)


FRA:IDJ Idacorp Inc FRA:IDJ
76 GF Score
Price €128.00
GF Value €86.39
Valuation Significantly Overvalued
! 14 Warning Signs
View Full Analysis

What is Idacorp E10?

Idacorp FRA:IDJ 76 E10 is €5.02 as of Mar. 2026. GuruFocus rates FRA:IDJ with a GF Score™ of 76/100 and a GF Value™ of €86.39 (Significantly Overvalued). The stock has 14 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.

Idacorp's adjusted earnings per share data for the three months ended in Mar. 2026 was €1.047. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €5.02 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Idacorp's average E10 Growth Rate was 4.50% per year. During the past 3 years, the average E10 Growth Rate was 3.90% per year. During the past 5 years, the average E10 Growth Rate was 5.50% per year. During the past 10 years, the average E10 Growth Rate was 6.10% 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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Idacorp was 8.10% per year. The lowest was -2.90% per year. And the median was 4.70% per year.

As of today (2026-06-27), Idacorp's current stock price is €128.00. Idacorp's E10 for the quarter that ended in Mar. 2026 was €5.02. Idacorp's Shiller PE Ratio of today is 25.50.

During the past 13 years, the highest Shiller PE Ratio of Idacorp was 27.78. The lowest was 16.52. And the median was 22.75.


Idacorp  (FRA:IDJ) 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.

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

Shiller PE Ratio=Share Price/E10
=128.00/5.02
=25.50

* 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 Idacorp was 27.78. The lowest was 16.52. And the median was 22.75.


Be Aware

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


Idacorp E10 Related Terms


Idacorp E10 Historical Data

* Premium members only.

The historical data trend for Idacorp'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.

Idacorp E10 Chart

Idacorp 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 4.10 4.79 4.74 5.15 4.84

Idacorp 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 4.99 4.82 4.74 4.84 5.02

FRA:IDJ vs TXNM, POR, OGE: E10 Comparison

For the Utilities - Regulated Electric subindustry, Idacorp'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.


Idacorp Shiller PE Ratio vs Utilities - Regulated Industry

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

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


FRA:IDJ
76GF Score
Idacorp Inc FRA:IDJ
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Idacorp 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, Idacorp'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)
=1.047/330.2130*330.2130
=1.047

Current CPI (Mar. 2026) = 330.2130.

Idacorp Quarterly Data

per share eps CPI Adj_EPS
201606 0.997 241.018 1.366
201609 1.470 241.428 2.011
201612 0.626 241.432 0.856
201703 0.617 243.801 0.836
201706 0.881 244.955 1.188
201709 1.510 246.819 2.020
201712 0.651 246.524 0.872
201803 0.584 249.554 0.773
201806 1.053 251.989 1.380
201809 1.731 252.439 2.264
201812 0.457 251.233 0.601
201903 0.743 254.202 0.965
201906 0.929 256.143 1.198
201909 1.616 256.759 2.078
201912 0.837 256.974 1.076
202003 0.670 258.115 0.857
202006 1.057 257.797 1.354
202009 1.715 260.280 2.176
202012 0.608 260.474 0.771
202103 0.748 264.877 0.933
202106 1.145 271.696 1.392
202109 1.641 274.310 1.975
202112 0.566 278.802 0.670
202203 0.826 287.504 0.949
202206 1.201 296.311 1.338
202209 2.121 296.808 2.360
202212 0.784 296.797 0.872
202303 1.037 301.836 1.134
202306 1.246 305.109 1.349
202309 1.940 307.789 2.081
202312 0.559 306.746 0.602
202403 0.874 312.332 0.924
202406 1.589 314.175 1.670
202409 1.910 315.301 2.000
202412 0.649 315.605 0.679
202503 1.017 319.799 1.050
202506 1.526 322.561 1.562
202509 1.926 324.800 1.958
202512 0.658 324.054 0.671
202603 1.047 330.213 1.047

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 €5.02 mean?
Idacorp (FRA:IDJ) has a E10 of €5.02 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Idacorp and its competitors.
Is Idacorp's E10 too high?
Idacorp's current E10 is €5.02. Overall, Idacorp has a GF Score™ of 76/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Idacorp's E10 compare to TXNM and POR?
Idacorp's E10 of €5.02 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 Idacorp and its competitors. Idacorp's current E10 is €5.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Idacorp stock overvalued right now?
Based on GuruFocus' analysis, Idacorp (FRA:IDJ) is currently considered Significantly Overvalued. The stock's GF Value™ is €86.39, compared to a current price of €128.00 — trading 48.2% above its estimated fair value. The current E10 is €5.02. Idacorp's overall GF Score™ is 76/100 with 14 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 Idacorp (FRA:IDJ), the current E10 is €5.02 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 Idacorp (FRA:IDJ) Overvalued in 2026?

Based on GuruFocus' analysis, Idacorp stock appears to be overvalued. The current stock price of €128.00 is trading 48.2% above its estimated GF Value™ of €86.39. GuruFocus considers Idacorp to be Significantly Overvalued.

Key valuation signals for FRA:IDJ:

  • E10: €5.02
  • GF Value™: €86.39 vs. price of €128.00 (48.2% above fair value)
  • GF Score™: 76/100 with 14 warning signs

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


Idacorp Business Description

Other Exchanges IDA:USAIDJ:Germany
Address 1221 West Idaho Street, Boise, ID, USA, 83702-5627
Idacorp is a holding company for Idaho Power. Idacorp is a vertically integrated utility that generates, transmits, and distributes electricity to 670,000 customers in southern Idaho and eastern Oregon. The utility owns 1.8 gigawatts of hydro generation, 400 MW of coal generation, 1.4 GW of natural gas generation, and 300 MW of energy storage.
76GF Score

Get the complete analysis for FRA:IDJ

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

€128.00
Price
€86.39
GF Value