Tradetool Auto Co (ROCO:3685) E10: NT$-0.02 (As of Dec. 2025)

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ROCO:3685 Tradetool Auto Co Ltd ROCO:3685
48 GF Score
Price NT$40.00
GF Value NT$15.29
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Tradetool Auto Co E10?

Tradetool Auto Co ROCO:3685 +8.55% 48 E10 is NT$-0.02 as of Dec. 2025. GuruFocus rates ROCO:3685 with a GF Score™ of 48/100 and a GF Value™ of NT$15.29 (Significantly Overvalued). The stock has 2 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.

Tradetool Auto Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$-0.400. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.02 for the trailing ten years ended in Dec. 2025.

During the past 3 years, the average E10 Growth Rate was 60.70% 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 Tradetool Auto Co was 60.70% per year. The lowest was -12.60% per year. And the median was 24.05% per year.

As of today (2026-07-15), Tradetool Auto Co's current stock price is NT$40.00. Tradetool Auto Co's E10 for the quarter that ended in Dec. 2025 was NT$-0.02. Tradetool Auto Co's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Tradetool Auto Co was 850.00. The lowest was 34.44. And the median was 77.70.


Tradetool Auto Co  (ROCO:3685) 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 Tradetool Auto Co was 850.00. The lowest was 34.44. And the median was 77.70.


Be Aware

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


Tradetool Auto Co E10 Related Terms


Tradetool Auto Co E10 Historical Data

* Premium members only.

The historical data trend for Tradetool Auto Co'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.

Tradetool Auto Co E10 Chart

Tradetool Auto Co 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 -0.21 -0.33 -0.57 -0.30 -0.02

Tradetool Auto Co 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 -0.30 -0.35 -0.43 -0.33 -0.02

ROCO:3685 vs ORLY, AZO: E10 Comparison

For the Auto Parts subindustry, Tradetool Auto Co'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.


Tradetool Auto Co Shiller PE Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Tradetool Auto Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Tradetool Auto Co's Shiller PE Ratio falls into.


ROCO:3685
48GF Score
Tradetool Auto Co Ltd ROCO:3685
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tradetool Auto Co 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, Tradetool Auto Co'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)
=-0.4/324.0540*324.0540
=-0.400

Current CPI (Dec. 2025) = 324.0540.

Tradetool Auto Co Quarterly Data

per share eps CPI Adj_EPS
201603 -0.020 238.132 -0.027
201606 0.280 241.018 0.376
201609 0.030 241.428 0.040
201612 0.080 241.432 0.107
201703 -0.120 243.801 -0.160
201706 -0.046 244.955 -0.061
201709 -0.010 246.819 -0.013
201712 0.499 246.524 0.656
201803 0.122 249.554 0.158
201806 0.250 251.989 0.321
201809 0.750 252.439 0.963
201812 0.160 251.233 0.206
201903 -0.020 254.202 -0.025
201906 0.080 256.143 0.101
201909 0.050 256.759 0.063
201912 0.150 256.974 0.189
202003 -0.120 258.115 -0.151
202006 -0.120 257.797 -0.151
202009 0.030 260.280 0.037
202012 0.300 260.474 0.373
202103 -0.080 264.877 -0.098
202106 -0.070 271.696 -0.083
202109 -0.090 274.310 -0.106
202112 0.280 278.802 0.325
202203 0.010 287.504 0.011
202206 -0.240 296.311 -0.262
202209 -0.110 296.808 -0.120
202212 -0.410 296.797 -0.448
202303 -0.190 301.836 -0.204
202306 -0.110 305.109 -0.117
202309 -0.150 307.789 -0.158
202312 -0.330 306.746 -0.349
202403 -0.130 312.332 -0.135
202406 -0.150 314.175 -0.155
202409 -0.090 315.301 -0.092
202412 -0.150 315.605 -0.154
202503 -0.150 319.799 -0.152
202506 -0.520 322.561 -0.522
202509 0.050 324.800 0.050
202512 -0.400 324.054 -0.400

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$-0.02 mean?
Tradetool Auto Co (ROCO:3685) has a E10 of NT$-0.02 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tradetool Auto Co and its competitors.
Is Tradetool Auto Co's E10 too high?
Tradetool Auto Co's current E10 is NT$-0.02. Overall, Tradetool Auto Co has a GF Score™ of 48/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tradetool Auto Co's E10 compare to ORLY and AZO?
Tradetool Auto Co's E10 of NT$-0.02 can be compared against companies in the Vehicles & Parts 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 Vehicles & Parts company?
A good E10 depends on the Vehicles & Parts 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 Tradetool Auto Co and its competitors. Tradetool Auto Co's current E10 is NT$-0.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tradetool Auto Co stock overvalued right now?
Based on GuruFocus' analysis, Tradetool Auto Co (ROCO:3685) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$15.29, compared to a current price of NT$40.00 — trading 161.6% above its estimated fair value. The current E10 is NT$-0.02. Tradetool Auto Co's overall GF Score™ is 48/100 with 2 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 Tradetool Auto Co (ROCO:3685), the current E10 is NT$-0.02 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 Tradetool Auto Co (ROCO:3685) Overvalued in 2026?

Based on GuruFocus' analysis, Tradetool Auto Co stock appears to be overvalued. The current stock price of NT$40.00 is trading 161.6% above its estimated GF Value™ of NT$15.29. GuruFocus considers Tradetool Auto Co to be Significantly Overvalued.

Key valuation signals for ROCO:3685:

  • E10: NT$-0.02
  • GF Value™: NT$15.29 vs. price of NT$40.00 (161.6% above fair value)
  • GF Score™: 48/100 with 2 warning signs

No single metric tells the full story. See the ROCO:3685 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tradetool Auto Co Business Description

Address No. 213 Chaofu Road, Room No. 7, 4th Floor, Xitun District, Taichung City, TWN, 407
Tradetool Auto Co Ltd is engaged in manufacturing and trading light guide plates, automotive stamping and welding parts, and developing and trading related molds. The company's department includes: Optical Injection Component Department, Metal Parts Stamping Department, Solar Energy Business Department, Construction and Investment Business Department. The company generates the majority of its revenue from the Metal Parts Stamping Department, which is engaged in body metal stamping and welding, trading, and the development and trading of related molds.
48GF Score

Get the complete analysis for ROCO:3685

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

NT$40.00
Price
NT$15.29
GF Value