Extreme Networks (STU:EXM) E10: €-0.16 (As of Mar. 2026)


STU:EXM Extreme Networks Inc STU:EXM
64 GF Score
Price €27.88
GF Value €16.04
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Extreme Networks E10?

Extreme Networks STU:EXM +2.84% 64 E10 is €-0.16 as of Mar. 2026. GuruFocus rates STU:EXM with a GF Score™ of 64/100 and a GF Value™ of €16.04 (Significantly Overvalued). 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.

Extreme Networks's adjusted earnings per share data for the three months ended in Mar. 2026 was €0.069. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €-0.16 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 13.90% per year. During the past 5 years, the average E10 Growth Rate was 5.30% per year. During the past 10 years, the average E10 Growth Rate was -11.70% 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 Extreme Networks was 72.90% per year. The lowest was -135.10% per year. And the median was -7.75% per year.

As of today (2026-06-28), Extreme Networks's current stock price is €27.88. Extreme Networks's E10 for the quarter that ended in Mar. 2026 was €-0.16. Extreme Networks's Shiller PE Ratio of today is .


Extreme Networks  (STU:EXM) 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.


Extreme Networks E10 Related Terms


Extreme Networks E10 Historical Data

* Premium members only.

The historical data trend for Extreme Networks'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.

Extreme Networks E10 Chart

Extreme Networks Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -0.29 -0.34 -0.30 -0.30 -0.20

Extreme Networks 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 -0.21 -0.20 -0.18 -0.17 -0.16

STU:EXM vs BDC, VISN, DGII: E10 Comparison

For the Communication Equipment subindustry, Extreme Networks'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.


Extreme Networks Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Extreme Networks's Shiller PE Ratio distribution charts can be found below:

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


STU:EXM
64GF Score
Extreme Networks Inc STU:EXM
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Extreme Networks 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, Extreme Networks'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)
=0.069/330.2130*330.2130
=0.069

Current CPI (Mar. 2026) = 330.2130.

Extreme Networks Quarterly Data

per share eps CPI Adj_EPS
201606 -0.018 241.018 -0.025
201609 -0.045 241.428 -0.062
201612 -0.038 241.432 -0.052
201703 -0.047 243.801 -0.064
201706 0.098 244.955 0.132
201709 0.034 246.819 0.045
201712 -0.237 246.524 -0.317
201803 -0.097 249.554 -0.128
201806 -0.043 251.989 -0.056
201809 -0.069 252.439 -0.090
201812 0.053 251.233 0.070
201903 -0.053 254.202 -0.069
201906 -0.124 256.143 -0.160
201909 -0.281 256.759 -0.361
201912 -0.180 256.974 -0.231
202003 -0.335 258.115 -0.429
202006 -0.160 257.797 -0.205
202009 -0.059 260.280 -0.075
202012 -0.016 260.474 -0.020
202103 0.025 264.877 0.031
202106 0.066 271.696 0.080
202109 0.085 274.310 0.102
202112 0.089 278.802 0.105
202203 0.091 287.504 0.105
202206 0.038 296.311 0.042
202209 0.091 296.808 0.101
202212 0.123 296.797 0.137
202303 0.159 301.836 0.174
202306 0.175 305.109 0.189
202309 0.197 307.789 0.211
202312 0.028 306.746 0.030
202403 -0.460 312.332 -0.486
202406 -0.390 314.175 -0.410
202409 -0.072 315.301 -0.075
202412 0.057 315.605 0.060
202503 0.028 319.799 0.029
202506 -0.052 322.561 -0.053
202509 0.034 324.800 0.035
202512 0.051 324.054 0.052
202603 0.069 330.213 0.069

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 €-0.16 mean?
Extreme Networks (STU:EXM) has a E10 of €-0.16 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Extreme Networks and its competitors.
Is Extreme Networks' E10 too high?
Extreme Networks' current E10 is €-0.16. Overall, Extreme Networks has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Extreme Networks' E10 compare to BDC and VISN?
Extreme Networks' E10 of €-0.16 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 Extreme Networks and its competitors. Extreme Networks's current E10 is €-0.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Extreme Networks stock overvalued right now?
Based on GuruFocus' analysis, Extreme Networks (STU:EXM) is currently considered Significantly Overvalued. The stock's GF Value™ is €16.04, compared to a current price of €27.88 — trading 73.8% above its estimated fair value. The current E10 is €-0.16. Extreme Networks' overall GF Score™ is 64/100 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 Extreme Networks (STU:EXM), the current E10 is €-0.16 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 Extreme Networks (STU:EXM) Overvalued in 2026?

Based on GuruFocus' analysis, Extreme Networks stock appears to be overvalued. The current stock price of €27.88 is trading 73.8% above its estimated GF Value™ of €16.04. GuruFocus considers Extreme Networks to be Significantly Overvalued.

Key valuation signals for STU:EXM:

  • E10: €-0.16
  • GF Value™: €16.04 vs. price of €27.88 (73.8% above fair value)
  • GF Score™: 64/100 with 6 warning signs

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


Extreme Networks Business Description

Other Exchanges EXTR:USA0IJW:UK
Address 2121 RDU Center Drive, Suite 300, Morrisville, NC, USA, 27560
Extreme Networks Inc provides AI-powered cloud networking, focused on delivering simple and secure solutions that help businesses address challenges and enable connections among devices, applications, and users. The group designs, develops, and manufactures wired, wireless, and software-defined wide area network (SD-WAN) infrastructure equipment. It has one reportable segment, the development, marketing, and sale of network infrastructure equipment and related software. The Company operates in three geographical areas: Americas, EMEA, and APAC.
64GF Score

Get the complete analysis for STU:EXM

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

€27.88
Price
€16.04
GF Value