Photon Energy NV (XPRA:PEN) E10: Kč-3.77 (As of Mar. 2026)


XPRA:PEN Photon Energy NV XPRA:PEN
50 GF Score
Price Kč6.90
GF Value Kč36.31
Valuation Possible Value Trap
! 6 Warning Signs
View Full Analysis

What is Photon Energy NV E10?

Photon Energy NV XPRA:PEN -5.48% 50 E10 is Kč-3.77 as of Mar. 2026. GuruFocus rates XPRA:PEN with a GF Score™ of 50/100 and a GF Value™ of Kč36.31 (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 Kč-11.800. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is Kč-3.77 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 (2026-06-28), Photon Energy NV's current stock price is Kč6.90. Photon Energy NV's E10 for the quarter that ended in Mar. 2026 was Kč-3.77. Photon Energy NV's Shiller PE Ratio of today is .


Photon Energy NV  (XPRA: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 -3.37 -1.69 -1.81 -2.28 -2.98

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 -2.61 -2.76 -2.85 -2.98 -3.77

XPRA: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.


XPRA:PEN
50GF Score
Photon Energy NV XPRA: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)
=-11.8/135.2700*135.2700
=-11.800

Current CPI (Mar. 2026) = 135.2700.

Photon Energy NV Quarterly Data

per share eps CPI Adj_EPS
201606 0.190 100.260 0.256
201609 0.081 100.570 0.109
201612 -0.947 100.710 -1.272
201703 -0.162 101.440 -0.216
201706 0.210 101.370 0.280
201709 0.313 102.030 0.415
201712 -0.744 101.970 -0.987
201803 0.941 102.470 1.242
201806 -0.077 103.100 -0.101
201809 0.615 103.950 0.800
201812 -1.234 103.970 -1.605
201903 -0.642 105.370 -0.824
201906 0.102 105.840 0.130
201909 1.502 106.700 1.904
201912 -1.317 106.800 -1.668
202003 -0.877 106.850 -1.110
202006 -0.507 107.510 -0.638
202009 -0.855 107.880 -1.072
202012 -2.258 107.850 -2.832
202103 -1.598 108.870 -1.986
202106 -0.407 109.670 -0.502
202109 -0.660 110.790 -0.806
202112 -0.454 114.010 -0.539
202203 -0.650 119.460 -0.736
202206 0.890 119.050 1.011
202209 2.629 126.890 2.803
202212 -0.135 124.940 -0.146
202303 -1.919 124.720 -2.081
202306 -1.302 125.830 -1.400
202309 -0.877 127.160 -0.933
202312 -2.521 126.450 -2.697
202403 -0.556 128.580 -0.585
202406 -1.140 129.910 -1.187
202409 -1.246 131.610 -1.281
202412 -5.557 131.630 -5.711
202503 -1.515 133.330 -1.537
202506 -1.317 133.960 -1.330
202509 -1.072 135.920 -1.067
202512 -3.177 135.270 -3.177
202603 -11.800 135.270 -11.800

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 Kč-3.77 mean?
Photon Energy NV (XPRA:PEN) has a E10 of Kč-3.77 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 Kč-3.77. Overall, Photon Energy NV has a GF Score™ of 50/100 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 Kč-3.77 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 Kč-3.77. 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 (XPRA:PEN) is currently considered Possible Value Trap. The stock's GF Value™ is Kč36.31, compared to a current price of Kč6.90 — trading 81% below its estimated fair value. The current E10 is Kč-3.77. Photon Energy NV's overall GF Score™ is 50/100 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 (XPRA:PEN), the current E10 is Kč-3.77 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 (XPRA:PEN) Overvalued in 2026?

Based on GuruFocus' analysis, Photon Energy NV stock appears to be undervalued. The current stock price of Kč6.90 is trading 81% below its estimated GF Value™ of Kč36.31. GuruFocus considers Photon Energy NV to be Possible Value Trap.

Key valuation signals for XPRA:PEN:

  • E10: Kč-3.77
  • GF Value™: Kč36.31 vs. price of Kč6.90 (81% below fair value)
  • GF Score™: 50/100 with 6 warning signs

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


Photon Energy NV Business Description

Other Exchanges PEN:PolandP7V:Germany
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.
50GF Score

Get the complete analysis for XPRA:PEN

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

Kč6.90
Price
Kč36.31
GF Value