Actron Technology (ROCO:8255) E10: NT$7.20 (As of Dec. 2025)


ROCO:8255 Actron Technology Corp ROCO:8255
84 GF Score
Price NT$176.50
GF Value NT$207.04
Valuation Modestly Undervalued
! 5 Warning Signs
View Full Analysis

What is Actron Technology E10?

Actron Technology ROCO:8255 84 E10 is NT$7.20 as of Dec. 2025. GuruFocus rates ROCO:8255 with a GF Score™ of 84/100 and a GF Value™ of NT$207.04 (Modestly Undervalued). The stock has 5 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.

Actron Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$1.610. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$7.20 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Actron Technology's average E10 Growth Rate was -3.60% per year. During the past 3 years, the average E10 Growth Rate was -1.30% per year. During the past 5 years, the average E10 Growth Rate was 1.70% 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 Actron Technology was 3.90% per year. The lowest was -1.30% per year. And the median was 2.20% per year.

As of today (2026-07-11), Actron Technology's current stock price is NT$176.50. Actron Technology's E10 for the quarter that ended in Dec. 2025 was NT$7.20. Actron Technology's Shiller PE Ratio of today is 24.51.

During the past 13 years, the highest Shiller PE Ratio of Actron Technology was 38.60. The lowest was 10.27. And the median was 20.10.


Actron Technology  (ROCO:8255) 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.

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

Shiller PE Ratio=Share Price/E10
=176.50/7.20
=24.51

* 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 Actron Technology was 38.60. The lowest was 10.27. And the median was 20.10.


Be Aware

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


Actron Technology E10 Related Terms


Actron Technology E10 Historical Data

* Premium members only.

The historical data trend for Actron 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.

Actron Technology E10 Chart

Actron 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 6.99 7.49 7.48 7.47 7.20

Actron 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 7.47 7.54 7.39 7.32 7.20

ROCO:8255 vs ORLY, AZO: E10 Comparison

For the Auto Parts subindustry, Actron 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.


Actron Technology Shiller PE Ratio vs Vehicles & Parts Industry

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

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


ROCO:8255
84GF Score
Actron Technology Corp ROCO:8255
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Actron 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, Actron 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)
=1.61/324.0540*324.0540
=1.610

Current CPI (Dec. 2025) = 324.0540.

Actron Technology Quarterly Data

per share eps CPI Adj_EPS
201603 1.875 238.132 2.552
201606 2.071 241.018 2.785
201609 1.129 241.428 1.515
201612 2.219 241.432 2.978
201703 1.178 243.801 1.566
201706 1.973 244.955 2.610
201709 1.836 246.819 2.411
201712 1.924 246.524 2.529
201803 1.590 249.554 2.065
201806 1.757 251.989 2.259
201809 1.964 252.439 2.521
201812 1.617 251.233 2.086
201903 1.319 254.202 1.681
201906 1.121 256.143 1.418
201909 0.922 256.759 1.164
201912 0.694 256.974 0.875
202003 0.793 258.115 0.996
202006 -0.298 257.797 -0.375
202009 1.339 260.280 1.667
202012 1.230 260.474 1.530
202103 1.676 264.877 2.050
202106 1.210 271.696 1.443
202109 1.488 274.310 1.758
202112 0.813 278.802 0.945
202203 1.626 287.504 1.833
202206 1.378 296.311 1.507
202209 1.910 296.808 2.085
202212 1.172 296.797 1.280
202303 1.230 301.836 1.321
202306 3.640 305.109 3.866
202309 2.130 307.789 2.243
202312 0.510 306.746 0.539
202403 2.140 312.332 2.220
202406 2.050 314.175 2.114
202409 2.060 315.301 2.117
202412 1.680 315.605 1.725
202503 2.230 319.799 2.260
202506 0.380 322.561 0.382
202509 1.880 324.800 1.876
202512 1.610 324.054 1.610

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$7.20 mean?
Actron Technology (ROCO:8255) has a E10 of NT$7.20 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Actron Technology and its competitors.
Is Actron Technology's E10 too high?
Actron Technology's current E10 is NT$7.20. Overall, Actron Technology has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Actron Technology's E10 compare to ORLY and AZO?
Actron Technology's E10 of NT$7.20 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 Actron Technology and its competitors. Actron Technology's current E10 is NT$7.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Actron Technology stock overvalued right now?
Based on GuruFocus' analysis, Actron Technology (ROCO:8255) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$207.04, compared to a current price of NT$176.50 — trading 14.8% below its estimated fair value. The current E10 is NT$7.20. Actron Technology's overall GF Score™ is 84/100 with 5 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 Actron Technology (ROCO:8255), the current E10 is NT$7.20 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 Actron Technology (ROCO:8255) Overvalued in 2026?

Based on GuruFocus' analysis, Actron Technology stock appears to be undervalued. The current stock price of NT$176.50 is trading 14.8% below its estimated GF Value™ of NT$207.04. GuruFocus considers Actron Technology to be Modestly Undervalued.

Key valuation signals for ROCO:8255:

  • E10: NT$7.20
  • GF Value™: NT$207.04 vs. price of NT$176.50 (14.8% below fair value)
  • GF Score™: 84/100 with 5 warning signs

No single metric tells the full story. See the ROCO:8255 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Actron Technology Business Description

Address Nankan Road, 1st Floor, No 22, Section 2, Luzhu District, Taoyuan, TWN
Actron Technology Corp is engaged in the design, development, manufacture, and sale of automotive electronic components and power semiconductor products. The company focuses on automotive pressfit diodes, power modules, IGBT and MOSFET products, SiC power devices, and other power solutions used in electric vehicles, e-mobility platforms, and automotive applications. The group operates through three reportable segments: the Taiwan business segment, the Mainland China Qingdao segment, and the Taiwan Mosel Vitelic segment.
84GF Score

Get the complete analysis for ROCO:8255

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

NT$176.50
Price
NT$207.04
GF Value