Copartner Technology (TPE:3550) E10: NT$0.16 (As of Dec. 2025)


TPE:3550 Copartner Technology Corp TPE:3550
56 GF Score
Price NT$33.40
GF Value NT$12.60
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Copartner Technology E10?

Copartner Technology TPE:3550 -8.99% 56 E10 is NT$0.16 as of Dec. 2025. GuruFocus rates TPE:3550 with a GF Score™ of 56/100 and a GF Value™ of NT$12.60 (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.

Copartner Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$-0.511. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$0.16 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Copartner Technology's average E10 Growth Rate was -59.00% per year. During the past 3 years, the average E10 Growth Rate was -49.20% per year. During the past 5 years, the average E10 Growth Rate was -26.20% 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 Copartner Technology was 7.20% per year. The lowest was -49.20% per year. And the median was -12.50% per year.

As of today (2026-07-06), Copartner Technology's current stock price is NT$33.40. Copartner Technology's E10 for the quarter that ended in Dec. 2025 was NT$0.16. Copartner Technology's Shiller PE Ratio of today is 208.75.

During the past 13 years, the highest Shiller PE Ratio of Copartner Technology was 232.81. The lowest was 9.37. And the median was 19.22.


Copartner Technology  (TPE:3550) 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.

Copartner Technology's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=33.40/0.16
=208.75

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Copartner Technology was 232.81. The lowest was 9.37. And the median was 19.22.


Be Aware

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


Copartner Technology E10 Related Terms


Copartner Technology E10 Historical Data

* Premium members only.

The historical data trend for Copartner Technology'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.

Copartner Technology E10 Chart

Copartner Technology 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 1.00 1.22 0.73 0.39 0.16

Copartner Technology Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 0.39 0.36 0.31 0.23 0.16

TPE:3550 vs VRT, BE: E10 Comparison

For the Electrical Equipment & Parts subindustry, Copartner Technology'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.


Copartner Technology Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Copartner Technology's Shiller PE Ratio distribution charts can be found below:

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


TPE:3550
56GF Score
Copartner Technology Corp TPE:3550
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Copartner Technology 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, Copartner Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=-0.511/324.0540*324.0540
=-0.511

Current CPI (Dec. 2025) = 324.0540.

Copartner Technology Quarterly Data

per share eps CPI Adj_EPS
201603 -0.028 238.132 -0.038
201606 0.518 241.018 0.696
201609 0.207 241.428 0.278
201612 0.480 241.432 0.644
201703 0.057 243.801 0.076
201706 0.358 244.955 0.474
201709 0.518 246.819 0.680
201712 0.433 246.524 0.569
201803 0.151 249.554 0.196
201806 0.490 251.989 0.630
201809 0.414 252.439 0.531
201812 0.235 251.233 0.303
201903 -0.104 254.202 -0.133
201906 0.141 256.143 0.178
201909 0.198 256.759 0.250
201912 0.311 256.974 0.392
202003 -0.188 258.115 -0.236
202006 0.424 257.797 0.533
202009 0.170 260.280 0.212
202012 0.480 260.474 0.597
202103 0.433 264.877 0.530
202106 0.386 271.696 0.460
202109 0.058 274.310 0.069
202112 -0.010 278.802 -0.012
202203 -0.145 287.504 -0.163
202206 0.213 296.311 0.233
202209 -0.242 296.808 -0.264
202212 1.309 296.797 1.429
202303 -0.369 301.836 -0.396
202306 -0.223 305.109 -0.237
202309 -0.951 307.789 -1.001
202312 -2.473 306.746 -2.613
202403 -0.184 312.332 -0.191
202406 -0.048 314.175 -0.050
202409 -0.824 315.301 -0.847
202412 -0.953 315.605 -0.979
202503 -0.310 319.799 -0.314
202506 -0.194 322.561 -0.195
202509 -0.175 324.800 -0.175
202512 -0.511 324.054 -0.511

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 NT$0.16 mean?
Copartner Technology (TPE:3550) has a E10 of NT$0.16 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Copartner Technology and its competitors.
Is Copartner Technology's E10 too high?
Copartner Technology's current E10 is NT$0.16. Overall, Copartner Technology has a GF Score™ of 56/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Copartner Technology's E10 compare to VRT and BE?
Copartner Technology's E10 of NT$0.16 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good E10 depends on the Industrial Products 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 Copartner Technology and its competitors. Copartner Technology's current E10 is NT$0.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Copartner Technology stock overvalued right now?
Based on GuruFocus' analysis, Copartner Technology (TPE:3550) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$12.60, compared to a current price of NT$33.40 — trading 165.1% above its estimated fair value. The current E10 is NT$0.16. Copartner Technology's overall GF Score™ is 56/100 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 Copartner Technology (TPE:3550), the current E10 is NT$0.16 as of Dec. 2025. 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 Copartner Technology (TPE:3550) Overvalued in 2026?

Based on GuruFocus' analysis, Copartner Technology stock appears to be overvalued. The current stock price of NT$33.40 is trading 165.1% above its estimated GF Value™ of NT$12.60. GuruFocus considers Copartner Technology to be Significantly Overvalued.

Key valuation signals for TPE:3550:

  • E10: NT$0.16
  • GF Value™: NT$12.60 vs. price of NT$33.40 (165.1% above fair value)
  • GF Score™: 56/100 with 7 warning signs

No single metric tells the full story. See the TPE:3550 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Copartner Technology Business Description

Address 4th Floor, No. 16, Jianba Road, Zhonghe District, New Taipei City, Taipei, TWN, 235
Copartner Technology Corp is engaged in R&D, manufacturing and sales of signal transmission wires and wire sets for information, communication and consumer electronics products, automobiles, medical equipment, industrial equipment, automation equipment and servers; manufacturing and sales of plastic products. The company's reportable segments are the production and sales of signal transmission wires and wire sets, the production and sales of plastic pellets, and others. Geographically, the company operates in Taiwan, China, Europe and America.
56GF Score

Get the complete analysis for TPE:3550

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

NT$33.40
Price
NT$12.60
GF Value