Protektor (WAR:PRT) E10: zł-0.11 (As of Mar. 2026)


WAR:PRT Protektor SA WAR:PRT
67 GF Score
Price zł1.22
GF Value zł1.52
Valuation Modestly Undervalued
! 7 Warning Signs
View Full Analysis

What is Protektor E10?

Protektor WAR:PRT +1.16% 67 E10 is zł-0.11 as of Mar. 2026. GuruFocus rates WAR:PRT with a GF Score™ of 67/100 and a GF Value™ of zł1.52 (Modestly Undervalued). The stock has 7 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.

Protektor's adjusted earnings per share data for the three months ended in Mar. 2026 was zł-0.100. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is zł-0.11 for the trailing ten years ended in Mar. 2026.

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), Protektor's current stock price is zł1.222. Protektor's E10 for the quarter that ended in Mar. 2026 was zł-0.11. Protektor's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Protektor was 79.75. The lowest was 13.67. And the median was 22.66.


Protektor  (WAR:PRT) 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 Protektor was 79.75. The lowest was 13.67. And the median was 22.66.


Be Aware

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


Protektor E10 Related Terms


Protektor E10 Historical Data

* Premium members only.

The historical data trend for Protektor'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.

Protektor E10 Chart

Protektor Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.10 0.18 0.15 0.09 -0.01

Protektor Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 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 -0.01 -0.04 -0.07 -0.09 -0.11

WAR:PRT vs NKE, DECK, ONON: E10 Comparison

For the Footwear & Accessories subindustry, Protektor'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.


Protektor Shiller PE Ratio vs Manufacturing - Apparel & Accessories Industry

For the Manufacturing - Apparel & Accessories industry and Consumer Cyclical sector, Protektor's Shiller PE Ratio distribution charts can be found below:

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


WAR:PRT
67GF Score
Protektor SA WAR:PRT
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Protektor 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, Protektor'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)
=-0.1/158.3232*158.3232
=-0.100

Current CPI (Mar. 2026) = 158.3232.

Protektor Quarterly Data

per share eps CPI Adj_EPS
201603 0.090 98.983 0.144
201606 0.050 99.552 0.080
201609 0.010 99.064 0.016
201612 0.020 100.366 0.032
201703 0.050 101.018 0.078
201706 0.070 101.180 0.110
201709 0.030 101.343 0.047
201712 -0.040 102.564 -0.062
201803 0.050 102.564 0.077
201806 0.020 103.378 0.031
201809 -0.040 103.378 -0.061
201812 -0.130 103.785 -0.198
201903 0.040 104.274 0.061
201906 -0.010 105.983 -0.015
201909 -0.020 105.983 -0.030
201912 -0.040 107.123 -0.059
202003 0.050 109.076 0.073
202006 -0.110 109.402 -0.159
202009 0.030 109.320 0.043
202012 0.070 109.565 0.101
202103 0.070 112.658 0.098
202106 -0.005 113.960 -0.007
202109 -0.040 115.588 -0.055
202112 0.020 119.088 0.027
202203 0.040 125.031 0.051
202206 -0.040 131.705 -0.048
202209 -0.030 135.531 -0.035
202212 -0.045 139.113 -0.051
202303 0.040 145.950 0.043
202306 0.003 147.009 0.003
202309 -0.040 146.113 -0.043
202312 -0.357 147.741 -0.383
202403 0.010 149.044 0.011
202406 -0.160 150.997 -0.168
202409 -0.150 153.439 -0.155
202412 -0.240 154.660 -0.246
202503 -0.040 157.021 -0.040
202506 -0.190 157.509 -0.191
202509 -0.100 157.998 -0.100
202603 -0.100 158.323 -0.100

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-0.11 mean?
Protektor (WAR:PRT) has a E10 of zł-0.11 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Protektor and its competitors.
Is Protektor's E10 too high?
Protektor's current E10 is zł-0.11. Overall, Protektor has a GF Score™ of 67/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Protektor's E10 compare to NKE and DECK?
Protektor's E10 of zł-0.11 can be compared against companies in the Manufacturing - Apparel & Accessories 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 Manufacturing - Apparel & Accessories company?
A good E10 depends on the Manufacturing - Apparel & Accessories 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 Protektor and its competitors. Protektor's current E10 is zł-0.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Protektor stock overvalued right now?
Based on GuruFocus' analysis, Protektor (WAR:PRT) is currently considered Modestly Undervalued. The stock's GF Value™ is zł1.52, compared to a current price of zł1.22 — trading 19.6% below its estimated fair value. The current E10 is zł-0.11. Protektor's overall GF Score™ is 67/100 with 7 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 Protektor (WAR:PRT), the current E10 is zł-0.11 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 Protektor (WAR:PRT) Overvalued in 2026?

Based on GuruFocus' analysis, Protektor stock appears to be undervalued. The current stock price of zł1.22 is trading 19.6% below its estimated GF Value™ of zł1.52. GuruFocus considers Protektor to be Modestly Undervalued.

Key valuation signals for WAR:PRT:

  • E10: zł-0.11
  • GF Value™: zł1.52 vs. price of zł1.22 (19.6% below fair value)
  • GF Score™: 67/100 with 7 warning signs

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


Protektor Business Description

Address ul. Vetterow 24A-24B, Lublin, POL, 20-277
Protektor SA is a Poland based company engaged in manufacturing and selling of footwear. Its products comprise of military, protective, and specialist footwear which include safety, occupational, firefighters, trekking, work, and military footwear. The products are aimed at uniformed services such as the police, fire brigade, army, health care, and high-risk occupations, reaching Europe, Asia, Africa, and South America markets.
67GF Score

Get the complete analysis for WAR:PRT

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

zł1.22
Price
zł1.52
GF Value