Photon Energy NV (WAR:PEN) E10: zł-0.72 (As of Mar. 2026)


WAR:PEN Photon Energy NV WAR:PEN
53 GF Score
Price zł1.26
GF Value zł6.63
Valuation Possible Value Trap
! 6 Warning Signs
View Full Analysis

What is Photon Energy NV E10?

Photon Energy NV WAR:PEN -3.08% 53 E10 is zł-0.72 as of Mar. 2026. GuruFocus rates WAR:PEN with a GF Score™ of 53/100 and a GF Value™ of zł6.63 (Possible Value Trap). The stock has 6 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.

Photon Energy NV's adjusted earnings per share data for the three months ended in Mar. 2026 was zł-2.051. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is zł-0.72 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was -17.10% 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 Photon Energy NV was 13.30% per year. The lowest was -17.10% per year. And the median was -1.90% per year.

As of today (2026-06-27), Photon Energy NV's current stock price is zł1.26. Photon Energy NV's E10 for the quarter that ended in Mar. 2026 was zł-0.72. Photon Energy NV's Shiller PE Ratio of today is .


Photon Energy NV  (WAR:PEN) 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.


Photon Energy NV E10 Related Terms


Photon Energy NV E10 Historical Data

* Premium members only.

The historical data trend for Photon Energy NV'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.

Photon Energy NV E10 Chart

Photon Energy NV 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 -0.63 -0.33 -0.32 -0.41 -0.53

Photon Energy NV 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 -0.43 -0.47 -0.49 -0.53 -0.72

WAR:PEN vs FSLR, NXT, ENPH: E10 Comparison

For the Solar subindustry, Photon Energy NV'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.


Photon Energy NV Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where Photon Energy NV's Shiller PE Ratio falls into.


WAR:PEN
53GF Score
Photon Energy NV WAR:PEN
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Photon Energy NV 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, Photon Energy NV'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)
=-2.051/135.2700*135.2700
=-2.051

Current CPI (Mar. 2026) = 135.2700.

Photon Energy NV Quarterly Data

per share eps CPI Adj_EPS
201606 0.029 100.260 0.039
201609 0.012 100.570 0.016
201612 -0.136 100.710 -0.183
201703 -0.024 101.440 -0.032
201706 0.033 101.370 0.044
201709 0.053 102.030 0.070
201712 -0.126 101.970 -0.167
201803 0.168 102.470 0.222
201806 -0.013 103.100 -0.017
201809 0.103 103.950 0.134
201812 -0.200 103.970 -0.260
201903 -0.104 105.370 -0.134
201906 0.017 105.840 0.022
201909 0.235 106.700 0.298
201912 -0.211 106.800 -0.267
202003 -0.134 106.850 -0.170
202006 -0.079 107.510 -0.099
202009 -0.139 107.880 -0.174
202012 -0.384 107.850 -0.482
202103 -0.267 108.870 -0.332
202106 -0.071 109.670 -0.088
202109 -0.112 110.790 -0.137
202112 -0.075 114.010 -0.089
202203 -0.105 119.460 -0.119
202206 0.140 119.050 0.159
202209 0.389 126.890 0.415
202212 -0.022 124.940 -0.024
202303 -0.319 124.720 -0.346
202306 -0.219 125.830 -0.235
202309 -0.141 127.160 -0.150
202312 -0.413 126.450 -0.442
202403 -0.088 128.580 -0.093
202406 -0.182 129.910 -0.190
202409 -0.203 131.610 -0.209
202412 -0.850 131.630 -0.874
202503 -0.241 133.330 -0.245
202506 -0.225 133.960 -0.227
202509 -0.190 135.920 -0.189
202512 -0.564 135.270 -0.564
202603 -2.051 135.270 -2.051

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 zł-0.72 mean?
Photon Energy NV (WAR:PEN) has a E10 of zł-0.72 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Photon Energy NV and its competitors.
Is Photon Energy NV's E10 too high?
Photon Energy NV's current E10 is zł-0.72. Overall, Photon Energy NV has a GF Score™ of 53/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Photon Energy NV's E10 compare to FSLR and NXT?
Photon Energy NV's E10 of zł-0.72 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 Photon Energy NV and its competitors. Photon Energy NV's current E10 is zł-0.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Photon Energy NV stock overvalued right now?
Based on GuruFocus' analysis, Photon Energy NV (WAR:PEN) is currently considered Possible Value Trap. The stock's GF Value™ is zł6.63, compared to a current price of zł1.26 — trading 81% below its estimated fair value. The current E10 is zł-0.72. Photon Energy NV's overall GF Score™ is 53/100 with 6 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 Photon Energy NV (WAR:PEN), the current E10 is zł-0.72 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 Photon Energy NV (WAR:PEN) Overvalued in 2026?

Based on GuruFocus' analysis, Photon Energy NV stock appears to be undervalued. The current stock price of zł1.26 is trading 81% below its estimated GF Value™ of zł6.63. GuruFocus considers Photon Energy NV to be Possible Value Trap.

Key valuation signals for WAR:PEN:

  • E10: zł-0.72
  • GF Value™: zł6.63 vs. price of zł1.26 (81% below fair value)
  • GF Score™: 53/100 with 6 warning signs

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


Photon Energy NV Business Description

Address Barbara Strozzilaan 201, Amsterdam, NLD, 1083HN
Photon Energy NV is an investment holding company. It engages in the provision of solar power solutions and services. The company covers the entire life cycle of solar power systems. It operates through the following business segments: Engineering, Technology, Investment, Operations and Maintenance, New Energy, and Others. It generates the majority of its revenue from the New Energy segment. It has operations in the Czech Republic, Hungary, Poland, Australia, Romania, the Slovak Republic, and Germany. The firm generates the majority of revenue from the Czech Republic.
53GF Score

Get the complete analysis for WAR:PEN

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

zł1.26
Price
zł6.63
GF Value