Firefly AB (FRA:A63) E10: €0.00 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Charlie Tian
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

FRA:A63 Firefly AB FRA:A63
86 GF Score
Price €13.55
GF Value €16.51
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What is Firefly AB E10?

Firefly AB FRA:A63 -0.37% 86 E10 is €0.00 as of Jun. 2026. GuruFocus rates FRA:A63 with a GF Score™ of 86/100 and a GF Value™ of €16.51.

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.

Firefly AB's adjusted earnings per share data for the three months ended in Jun. 2026 was €0.147. 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 Jun. 2026.

During the past 12 months, Firefly AB's average E10 Growth Rate was 14.80% per year. During the past 3 years, the average E10 Growth Rate was 20.90% per year. During the past 5 years, the average E10 Growth Rate was 29.30% 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 Firefly AB was 34.80% per year. The lowest was 11.90% per year. And the median was 24.80% per year.

As of today (2026-09-15), Firefly AB's current stock price is €13.55. Firefly AB's E10 for the quarter that ended in Jun. 2026 was €0.00. Firefly AB's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Firefly AB was 62.23. The lowest was 26.03. And the median was 41.25.


Firefly AB  (FRA:A63) 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.

During the past 13 years, the highest Shiller P/E Ratio of Firefly AB was 62.23. The lowest was 26.03. And the median was 41.25.


Be Aware

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


Firefly AB E10 Related Terms


Firefly AB E10 Historical Data

* Premium members only.

The historical data trend for Firefly AB'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.

Firefly AB E10 Chart

Firefly AB 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 0.00 0.00 0.00 0.00 0.00

Firefly AB Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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

FRA:A63 vs TT, JCI, CARR: E10 Comparison

For the Building Products & Equipment subindustry, Firefly AB'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.


Firefly AB Shiller PE Ratio vs Construction Industry

For the Construction industry and Industrials sector, Firefly AB's Shiller PE Ratio distribution charts can be found below:

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


FRA:A63
86GF Score
Firefly AB FRA:A63
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Firefly AB 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, Firefly AB's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.147/134.6100*134.6100
=0.147

Current CPI (Jun. 2026) = 134.6100.

Firefly AB Quarterly Data

per share eps CPI Adj_EPS
201609 0.013 101.138 0.017
201612 -0.010 102.022 -0.013
201703 0.026 102.022 0.034
201706 0.029 102.752 0.038
201709 0.110 103.279 0.143
201712 0.077 103.793 0.100
201803 0.081 103.962 0.105
201806 0.031 104.875 0.040
201809 0.096 105.679 0.122
201812 0.031 105.912 0.039
201903 0.028 105.886 0.036
201906 0.021 106.742 0.026
201909 0.104 107.214 0.131
201912 0.056 107.766 0.070
202003 0.055 106.563 0.069
202006 -0.035 107.498 -0.044
202009 0.178 107.635 0.223
202012 0.033 108.296 0.041
202103 0.060 108.360 0.075
202106 0.058 108.928 0.072
202109 0.103 110.338 0.126
202112 0.086 112.486 0.103
202203 0.128 114.825 0.150
202206 0.050 118.384 0.057
202209 0.106 122.296 0.117
202212 0.253 126.365 0.270
202303 0.100 127.042 0.106
202306 0.129 129.407 0.134
202309 0.269 130.224 0.278
202312 0.155 131.912 0.158
202403 0.194 132.205 0.198
202406 0.142 132.716 0.144
202409 0.238 132.304 0.242
202412 0.230 132.987 0.233
202503 0.204 132.825 0.207
202506 -0.032 133.699 -0.032
202509 0.280 133.480 0.282
202512 0.272 133.390 0.274
202603 0.133 133.560 0.134
202606 0.147 134.610 0.147

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?
Firefly AB (FRA:A63) has a E10 of €0.00 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Firefly AB and its competitors.
Is Firefly AB's E10 too high?
Firefly AB's current E10 is €0.00. Overall, Firefly AB has a GF Score™ of 86/100, reflecting its overall financial health beyond just this single metric.
How does Firefly AB's E10 compare to TT and JCI?
Firefly AB's E10 of €0.00 can be compared against companies in the Construction 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 Construction company?
A good E10 depends on the Construction 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 Firefly AB and its competitors. Firefly AB'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 Firefly AB stock overvalued right now?
Firefly AB (FRA:A63) has a current E10 of €0.00. The stock's GF Value™ is €16.51, compared to a current price of €13.55 — trading 17.9% below its estimated fair value. The current E10 is €0.00. Firefly AB's overall GF Score™ is 86/100. 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 Firefly AB (FRA:A63), the current E10 is €0.00 as of Jun. 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 Firefly AB (FRA:A63) Overvalued in 2026?

Based on GuruFocus' analysis, Firefly AB stock appears to be undervalued. The current stock price of €13.55 is trading 17.9% below its estimated GF Value™ of €16.51.

Key valuation signals for FRA:A63:

  • E10: €0.00
  • GF Value™: €16.51 vs. price of €13.55 (17.9% below fair value)
  • GF Score™: 86/100

No single metric tells the full story. See the FRA:A63 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Firefly AB Business Description

Other Exchanges FIRE:Sweden
Address Heliosgatan 3, Stockholm, SWE, 120 30
Firefly AB is a supplier of spark detection, fire and dust explosion protection systems in Sweden. The company develops, manufactures and sells high-tech systems, which detect and minimise the risk of fires and dust explosions. It has two business areas: Industrial applications and Infra systems. Industrial applications include customized fire prevention systems, which monitor industrial processes in areas such as tissue, food, woodworking, bioenergy, and recycling. The business area of Infra systems includes early fire detection in subway-, train-, road or cable tunnel systems by means of multiple-gas detection.
86GF Score

Get the complete analysis for FRA:A63

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

€13.55
Price
€16.51
GF Value