Ideal Power (STU:5ILA) E10: €-3.63 (As of Mar. 2026)


STU:5ILA Ideal Power Inc STU:5ILA
31 GF Score
Price €4.44
! 2 Warning Signs
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What is Ideal Power E10?

Ideal Power STU:5ILA +1.37% 31 E10 is €-3.63 as of Mar. 2026. GuruFocus rates STU:5ILA with a GF Score™ of 31/100. The stock has 2 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.

Ideal Power's adjusted earnings per share data for the three months ended in Mar. 2026 was €-0.285. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €-3.63 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 18.50% 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 Ideal Power was 18.50% per year. The lowest was 11.90% per year. And the median was 15.20% per year.

As of today (2026-06-29), Ideal Power's current stock price is €4.44. Ideal Power's E10 for the quarter that ended in Mar. 2026 was €-3.63. Ideal Power's Shiller PE Ratio of today is .


Ideal Power  (STU:5ILA) 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.


Be Aware

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


Ideal Power E10 Related Terms


Ideal Power E10 Historical Data

* Premium members only.

The historical data trend for Ideal Power'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.

Ideal Power E10 Chart

Ideal Power 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 -6.13 -7.33 -6.23 -5.48 -3.51

Ideal Power 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 -5.01 -4.44 -4.14 -3.51 -3.63

STU:5ILA vs SQNS, NA, PXLW: E10 Comparison

For the Semiconductors subindustry, Ideal Power'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.


Ideal Power Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Ideal Power's Shiller PE Ratio distribution charts can be found below:

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


STU:5ILA
31GF Score
Ideal Power Inc STU:5ILA
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Ideal Power 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, Ideal Power'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)
=-0.285/330.2130*330.2130
=-0.285

Current CPI (Mar. 2026) = 330.2130.

Ideal Power Quarterly Data

per share eps CPI Adj_EPS
201606 -2.314 241.018 -3.170
201609 -2.762 241.428 -3.778
201612 -2.749 241.432 -3.760
201703 -2.618 243.801 -3.546
201706 -2.047 244.955 -2.759
201709 -1.342 246.819 -1.795
201712 -1.098 246.524 -1.471
201803 -1.216 249.554 -1.609
201806 -1.027 251.989 -1.346
201809 -1.380 252.439 -1.805
201812 -1.178 251.233 -1.548
201903 -0.646 254.202 -0.839
201906 -0.752 256.143 -0.969
201909 -0.499 256.759 -0.642
201912 -0.333 256.974 -0.428
202003 -0.281 258.115 -0.359
202006 -0.249 257.797 -0.319
202009 -1.087 260.280 -1.379
202012 -0.214 260.474 -0.271
202103 -0.143 264.877 -0.178
202106 -0.158 271.696 -0.192
202109 -0.170 274.310 -0.205
202112 -0.204 278.802 -0.242
202203 -0.281 287.504 -0.323
202206 -0.255 296.311 -0.284
202209 -0.283 296.808 -0.315
202212 -0.293 296.797 -0.326
202303 -0.383 301.836 -0.419
202306 -0.342 305.109 -0.370
202309 -0.412 307.789 -0.442
202312 -0.358 306.746 -0.385
202403 -0.359 312.332 -0.380
202406 -0.288 314.175 -0.303
202409 -0.279 315.301 -0.292
202412 -0.277 315.605 -0.290
202503 -0.277 319.799 -0.286
202506 -0.286 322.561 -0.293
202509 -0.273 324.800 -0.278
202512 -0.179 324.054 -0.182
202603 -0.285 330.213 -0.285

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 €-3.63 mean?
Ideal Power (STU:5ILA) has a E10 of €-3.63 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Ideal Power and its competitors.
Is Ideal Power's E10 too high?
Ideal Power's current E10 is €-3.63. Overall, Ideal Power has a GF Score™ of 31/100, reflecting its overall financial health beyond just this single metric.
How does Ideal Power's E10 compare to SQNS and NA?
Ideal Power's E10 of €-3.63 can be compared against companies in the Semiconductors 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 a Semiconductors company?
A good E10 depends on the Semiconductors 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 Ideal Power and its competitors. Ideal Power's current E10 is €-3.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ideal Power stock overvalued right now?
Ideal Power (STU:5ILA) has a current E10 of €-3.63. The current E10 is €-3.63. Ideal Power's overall GF Score™ is 31/100 with 2 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 Ideal Power (STU:5ILA), the current E10 is €-3.63 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.

Ideal Power Business Description

Other Exchanges IPWR:USA5ILA:Germany
Address 5508 Highway 290 West, Suite 120, Austin, TX, USA, 78735
Ideal Power Inc is engaged in the development of its broadly patented bidirectional power switches, creating efficient and ecofriendly energy control solutions for electric vehicles, electric vehicle charging, renewable energy, energy storage, UPS / data center, solid-state circuit breaker and other industrial and military applications. The company is focused on its patented Bidirectional, Bipolar Junction Transistor (B-TRAN) semiconductor technology. B-TRAN is a double-sided bidirectional AC switchable to deliver substantial performance improvements over conventional power semiconductors. The primary raw material used in the fabrication of B-TRAN devices is silicon wafers.
31GF Score

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

€4.44
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