Tele Columbus AG (HAM:TC1) E10: €-1.03 (As of Mar. 2026)

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HAM:TC1 Tele Columbus AG HAM:TC1
33 GF Score
Price €0.49
GF Value €0.32
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Tele Columbus AG E10?

Tele Columbus AG HAM:TC1 +2.08% 33 E10 is €-1.03 as of Mar. 2026. GuruFocus rates HAM:TC1 with a GF Score™ of 33/100 and a GF Value™ of €0.32 (Significantly Overvalued). 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.

Tele Columbus AG's adjusted earnings per share data for the three months ended in Mar. 2026 was €-0.060. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €-1.03 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was -11.20% 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 Tele Columbus AG was -11.20% per year. The lowest was -11.20% per year. And the median was -11.20% per year.

As of today (2026-07-23), Tele Columbus AG's current stock price is €0.49. Tele Columbus AG's E10 for the quarter that ended in Mar. 2026 was €-1.03. Tele Columbus AG's Shiller PE Ratio of today is .


Tele Columbus AG  (HAM:TC1) 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.


Tele Columbus AG E10 Related Terms


Tele Columbus AG E10 Historical Data

* Premium members only.

The historical data trend for Tele Columbus 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.

Tele Columbus AG E10 Chart

Tele Columbus AG 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 -0.75 -0.78 -0.82 -1.03

Tele Columbus 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 -0.85 -0.89 -0.88 -1.03 -1.03

HAM:TC1 vs TMUS, VZ, T: E10 Comparison

For the Telecom Services subindustry, Tele Columbus 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.


Tele Columbus AG Shiller PE Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, Tele Columbus AG's Shiller PE Ratio distribution charts can be found below:

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


HAM:TC1
33GF Score
Tele Columbus AG HAM:TC1
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tele Columbus 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, Tele Columbus AG'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)
=-0.06/131.2583*131.2583
=-0.060

Current CPI (Mar. 2026) = 131.2583.

Tele Columbus AG Quarterly Data

per share eps CPI Adj_EPS
201606 -0.180 100.717 -0.235
201609 0.120 101.017 0.156
201612 0.100 101.217 0.130
201703 -0.030 101.417 -0.039
201706 -0.040 102.117 -0.051
201709 0.010 102.717 0.013
201712 -0.090 102.617 -0.115
201803 0.080 102.917 0.102
201806 -0.330 104.017 -0.416
201809 0.040 104.718 0.050
201812 -1.070 104.217 -1.348
201903 -0.080 104.217 -0.101
201906 -0.160 105.718 -0.199
201909 -0.090 106.018 -0.111
201912 0.040 105.818 0.050
202003 -0.040 105.718 -0.050
202006 -0.120 106.618 -0.148
202009 -0.113 105.818 -0.140
202012 -1.278 105.518 -1.590
202103 -1.000 107.518 -1.221
202106 -0.170 108.486 -0.206
202109 -0.041 109.435 -0.049
202112 -0.146 110.384 -0.174
202203 -0.086 113.968 -0.099
202206 -0.066 115.760 -0.075
202209 -0.102 118.818 -0.113
202212 -0.192 119.345 -0.211
202303 -0.090 122.402 -0.097
202306 -0.080 123.140 -0.085
202309 -0.120 124.195 -0.127
202312 -0.200 123.773 -0.212
202403 -0.150 125.038 -0.157
202406 -0.140 125.882 -0.146
202409 -0.160 126.198 -0.166
202412 -0.280 127.041 -0.289
202503 -0.370 127.779 -0.380
202506 -0.340 128.412 -0.348
202509 0.080 129.255 0.081
202512 -2.140 129.361 -2.171
202603 -0.060 131.258 -0.060

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 €-1.03 mean?
Tele Columbus AG (HAM:TC1) has a E10 of €-1.03 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tele Columbus AG and its competitors.
Is Tele Columbus AG's E10 too high?
Tele Columbus AG's current E10 is €-1.03. Overall, Tele Columbus AG has a GF Score™ of 33/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tele Columbus AG's E10 compare to TMUS and VZ?
Tele Columbus AG's E10 of €-1.03 can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good E10 depends on the Telecommunication Services 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 Tele Columbus AG and its competitors. Tele Columbus AG's current E10 is €-1.03. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tele Columbus AG stock overvalued right now?
Based on GuruFocus' analysis, Tele Columbus AG (HAM:TC1) is currently considered Significantly Overvalued. The stock's GF Value™ is €0.32, compared to a current price of €0.49 — trading 53.1% above its estimated fair value. The current E10 is €-1.03. Tele Columbus AG's overall GF Score™ is 33/100 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 Tele Columbus AG (HAM:TC1), the current E10 is €-1.03 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 Tele Columbus AG (HAM:TC1) Overvalued in 2026?

Based on GuruFocus' analysis, Tele Columbus AG stock appears to be overvalued. The current stock price of €0.49 is trading 53.1% above its estimated GF Value™ of €0.32. GuruFocus considers Tele Columbus AG to be Significantly Overvalued.

Key valuation signals for HAM:TC1:

  • E10: €-1.03
  • GF Value™: €0.32 vs. price of €0.49 (53.1% above fair value)
  • GF Score™: 33/100 with 7 warning signs

No single metric tells the full story. See the HAM:TC1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tele Columbus AG Business Description

Address Kaiserin-Augusta-Allee 108, Berlin, DEU, 10553
Tele Columbus AG is a triple-play telecommunications company. It derives revenue from TV, the Internet, cellphone, and voice services. The group operates through two main segments: TV and Internet, and telephony. The company's TV segment offers cable TV services to customers. The majority of revenue stems from this segment. Internet and telephony derive revenue from the provision of broadband Internet access as well as fixed-line and mobile telephony services to customers. The company is an owner of telecommunications infrastructure. The company generates the vast majority of its revenue in Germany.
33GF Score

Get the complete analysis for HAM:TC1

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

€0.49
Price
€0.32
GF Value