NFON AG (WBO:NFN) E10: €0.00 (As of Mar. 2026)


WBO:NFN NFON AG WBO:NFN
36 GF Score
Price €3.36
GF Value €9.25
Valuation Possible Value Trap
! 5 Warning Signs
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What is NFON AG E10?

NFON AG WBO:NFN +0.60% 36 E10 is €0.00 as of Mar. 2026. GuruFocus rates WBO:NFN with a GF Score™ of 36/100 and a GF Value™ of €9.25 (Possible Value Trap). The stock has 5 warning signs investors should review.

Note: As E10 is a main component used to calculate Shiller PE Ratio. If the month end stock price for this stock is zero, result may not be accurate due to the exchange rate between different shares and the data will not be stored into our database. Selected historical data showed in the calculation sectione below is only for demostration purpose.

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.

NFON AG's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was €0.140. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €0.00 for the trailing ten years ended in Dec. 2025.

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.

As of today (2026-06-26), NFON AG's current stock price is € 3.36. NFON AG's E10 for the fiscal year that ended in Dec. 2025 was €0.00. NFON AG's Shiller PE Ratio of today is .


NFON AG  (WBO:NFN) 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.


NFON AG E10 Related Terms


NFON AG E10 Historical Data

* Premium members only.

The historical data trend for NFON AG'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.

NFON AG E10 Chart

NFON AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
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NFON AG 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 0.00 0.00 0.00 0.00 0.00

WBO:NFN vs MSFT, ORCL, PLTR: E10 Comparison

For the Software - Infrastructure subindustry, NFON AG'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.


NFON AG Shiller PE Ratio vs Software Industry

For the Software industry and Technology sector, NFON AG's Shiller PE Ratio distribution charts can be found below:

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


WBO:NFN
36GF Score
NFON AG WBO:NFN
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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NFON AG 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, NFON AG's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0.14/129.3606*129.3606
=0.140

Current CPI (Dec. 2025) = 129.3606.

NFON AG Annual Data

per_share_eps CPI Adj_EPS
201612 -0.175 101.217 -0.224
201712 -0.228 102.617 -0.287
201812 -0.760 104.217 -0.943
201912 -0.770 105.818 -0.941
202012 -0.150 105.518 -0.184
202112 -0.550 110.384 -0.645
202212 -0.940 119.345 -1.019
202312 -0.050 123.773 -0.052
202412 0.020 127.041 0.020
202512 0.140 129.361 0.140

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 €0.00 mean?
NFON AG (WBO:NFN) has a E10 of €0.00 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on NFON AG and its competitors.
Is NFON AG's E10 too high?
NFON AG's current E10 is €0.00. Overall, NFON AG has a GF Score™ of 36/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does NFON AG's E10 compare to MSFT and ORCL?
NFON AG's E10 of €0.00 can be compared against companies in the Software 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 Software company?
A good E10 depends on the Software 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 NFON AG and its competitors. NFON AG's current E10 is €0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is NFON AG stock overvalued right now?
Based on GuruFocus' analysis, NFON AG (WBO:NFN) is currently considered Possible Value Trap. The stock's GF Value™ is €9.25, compared to a current price of €3.36 — trading 63.7% below its estimated fair value. The current E10 is €0.00. NFON AG's overall GF Score™ is 36/100 with 5 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 NFON AG (WBO:NFN), the current E10 is €0.00 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 NFON AG (WBO:NFN) Overvalued in 2026?

Based on GuruFocus' analysis, NFON AG stock appears to be undervalued. The current stock price of €3.36 is trading 63.7% below its estimated GF Value™ of €9.25. GuruFocus considers NFON AG to be Possible Value Trap.

Key valuation signals for WBO:NFN:

  • E10: €0.00
  • GF Value™: €9.25 vs. price of €3.36 (63.7% below fair value)
  • GF Score™: 36/100 with 5 warning signs

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


NFON AG Business Description

Other Exchanges NFN:Germany
Address Zielstattstrasse 36, Munich, DEU, 81379
NFON AG provides cloud-based solutions focused on communication and related technologies. Its offerings include AI-enabled services designed to support business operations and digital communication needs. The company's operating segments are NFON AG, NFON GmbH, NFON UK Ltd., NFON Iberia SL, NFON Italia S.r.l., NFON France SAS, NFON Polska Sp. zo.o and botario GmbH. The company principally generates revenue from telephone services. Geographically, the majority of revenue is derived from Germany.
36GF Score

Get the complete analysis for WBO:NFN

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

€3.36
Price
€9.25
GF Value