Comtech Telecommunications (STU:CC6) E10: €-1.40 (As of Apr. 2026)


STU:CC6 Comtech Telecommunications Corp STU:CC6
57 GF Score
Price €1.80
GF Value €2.43
Valuation Modestly Undervalued
! 7 Warning Signs
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What is Comtech Telecommunications E10?

Comtech Telecommunications STU:CC6 57 E10 is €-1.40 as of Apr. 2026. GuruFocus rates STU:CC6 with a GF Score™ of 57/100 and a GF Value™ of €2.43 (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.

Comtech Telecommunications's adjusted earnings per share data for the three months ended in Apr. 2026 was €-0.402. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €-1.40 for the trailing ten years ended in Apr. 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.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Comtech Telecommunications was 102.40% per year. The lowest was -67.00% per year. And the median was 4.00% per year.

As of today (2026-06-28), Comtech Telecommunications's current stock price is €1.80. Comtech Telecommunications's E10 for the quarter that ended in Apr. 2026 was €-1.40. Comtech Telecommunications's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Comtech Telecommunications was 279.50. The lowest was 5.70. And the median was 23.30.


Comtech Telecommunications  (STU:CC6) 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 Comtech Telecommunications was 279.50. The lowest was 5.70. And the median was 23.30.


Be Aware

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


Comtech Telecommunications E10 Related Terms


Comtech Telecommunications E10 Historical Data

* Premium members only.

The historical data trend for Comtech Telecommunications'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.

Comtech Telecommunications E10 Chart

Comtech Telecommunications Annual Data
Trend Jul16 Jul17 Jul18 Jul19 Jul20 Jul21 Jul22 Jul23 Jul24 Jul25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.50 0.27 0.04 -0.56 -1.37

Comtech Telecommunications Quarterly Data
Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 Apr26
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 -1.25 -1.37 -1.40 -1.41 -1.40

STU:CC6 vs WATT, OCC, INSG: E10 Comparison

For the Communication Equipment subindustry, Comtech Telecommunications'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.


Comtech Telecommunications Shiller PE Ratio vs Hardware Industry

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

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


STU:CC6
57GF Score
Comtech Telecommunications Corp STU:CC6
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Comtech Telecommunications 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, Comtech Telecommunications's adjusted earnings per share data for the three months ended in Apr. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Apr. 2026 (Change)*Current CPI (Apr. 2026)
=-0.402/333.0200*333.0200
=-0.402

Current CPI (Apr. 2026) = 333.0200.

Comtech Telecommunications Quarterly Data

per share eps CPI Adj_EPS
201607 0.127 240.628 0.176
201610 -0.100 241.729 -0.138
201701 0.263 242.839 0.361
201704 0.177 244.524 0.241
201707 0.269 244.786 0.366
201710 -0.060 246.663 -0.081
201801 0.541 247.867 0.727
201804 0.277 250.546 0.368
201807 0.265 252.006 0.350
201810 0.122 252.885 0.161
201901 0.280 251.712 0.370
201904 0.276 255.548 0.360
201907 0.223 256.571 0.289
201910 0.235 257.346 0.304
202001 0.126 257.971 0.163
202004 -0.147 256.389 -0.191
202007 0.035 259.101 0.045
202010 -2.882 260.388 -3.686
202101 0.140 261.582 0.178
202104 0.025 267.054 0.031
202107 0.237 273.003 0.289
202110 -0.371 276.589 -0.447
202201 -0.787 281.148 -0.932
202204 -0.056 289.109 -0.065
202207 -0.256 296.276 -0.288
202210 -0.467 298.012 -0.522
202301 -0.213 299.170 -0.237
202304 -0.301 303.363 -0.330
202307 -0.172 305.691 -0.187
202310 -0.104 307.671 -0.113
202401 -0.982 308.417 -1.060
202404 -0.037 313.548 -0.039
202407 -3.218 314.540 -3.407
202410 -4.856 315.664 -5.123
202501 -0.734 317.671 -0.769
202504 -0.436 320.795 -0.453
202507 -0.334 323.048 -0.344
202510 -0.576 0.000
202601 -0.579 325.252 -0.593
202604 -0.402 333.020 -0.402

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 €-1.40 mean?
Comtech Telecommunications (STU:CC6) has a E10 of €-1.40 as of Apr. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Comtech Telecommunications and its competitors.
Is Comtech Telecommunications' E10 too high?
Comtech Telecommunications' current E10 is €-1.40. Overall, Comtech Telecommunications has a GF Score™ of 57/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Comtech Telecommunications' E10 compare to WATT and OCC?
Comtech Telecommunications' E10 of €-1.40 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 Comtech Telecommunications and its competitors. Comtech Telecommunications's current E10 is €-1.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Comtech Telecommunications stock overvalued right now?
Based on GuruFocus' analysis, Comtech Telecommunications (STU:CC6) is currently considered Modestly Undervalued. The stock's GF Value™ is €2.43, compared to a current price of €1.80 — trading 25.9% below its estimated fair value. The current E10 is €-1.40. Comtech Telecommunications' overall GF Score™ is 57/100 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 Comtech Telecommunications (STU:CC6), the current E10 is €-1.40 as of Apr. 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 Comtech Telecommunications (STU:CC6) Overvalued in 2026?

Based on GuruFocus' analysis, Comtech Telecommunications stock appears to be undervalued. The current stock price of €1.80 is trading 25.9% below its estimated GF Value™ of €2.43. GuruFocus considers Comtech Telecommunications to be Modestly Undervalued.

Key valuation signals for STU:CC6:

  • E10: €-1.40
  • GF Value™: €2.43 vs. price of €1.80 (25.9% below fair value)
  • GF Score™: 57/100 with 7 warning signs

No single metric tells the full story. See the STU:CC6 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Comtech Telecommunications Business Description

Other Exchanges CMTL:USA
Address 305 N 54th Street, Chandler, AZ, USA, 85226
Comtech Telecommunications Corp is a provider of communications technology and solutions. It operates in two reportable business segments: Satellite and Space Communications and Allerium. The company's Satellite and Space Communications segment, which generates maximum revenue, is organized into four technology areas: satellite modem and amplifier technologies, troposcatter technologies, cybersecurity training, and space components. This segment designs and manufactures modems, amplifiers, traveling wave tube amplifiers, frequency converters, and offers other associated software and services. The Allerium segment provides next-generation 911 (NG-911) infrastructure and solutions for state and local governments and carriers. Geographically, the company derives its key revenue from the USA.
57GF Score

Get the complete analysis for STU:CC6

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

€1.80
Price
€2.43
GF Value