Actron Technology (ROCO:8255) Cyclically Adjusted Book per Share: NT$65.78 (As of Dec. 2025)

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ROCO:8255 Actron Technology Corp ROCO:8255
84 GF Score
Price NT$176.50
GF Value NT$207.11
Valuation Modestly Undervalued
! 5 Warning Signs
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What is Actron Technology Cyclically Adjusted Book per Share?

Actron Technology ROCO:8255 84 Cyclically Adjusted Book per Share is NT$65.78 as of Dec. 2025. GuruFocus rates ROCO:8255 with a GF Score™ of 84/100 and a GF Value™ of NT$207.11 (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 PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Actron Technology's adjusted book value per share for the three months ended in Dec. 2025 was NT$77.566. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is NT$65.78 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Actron Technology's average Cyclically Adjusted Book Growth Rate was 6.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 7.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 9.50% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Actron Technology was 11.10% per year. The lowest was 7.70% per year. And the median was 9.30% per year.

As of today (2026-07-13), Actron Technology's current stock price is NT$176.50. Actron Technology's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$65.78. Actron Technology's Cyclically Adjusted PB Ratio of today is 2.68.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Actron Technology was 5.83. The lowest was 1.77. And the median was 2.79.


Actron Technology  (ROCO:8255) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Actron Technology's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=176.50/65.78
=2.68

* 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 Cyclically Adjusted PB Ratio of Actron Technology was 5.83. The lowest was 1.77. And the median was 2.79.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Actron Technology Cyclically Adjusted Book per Share Related Terms


Actron Technology Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Actron Technology's Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share Chart

Actron Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 47.51 52.59 57.07 61.96 65.78

Actron Technology Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Cyclically Adjusted Book per Share 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 61.96 63.23 64.31 65.37 65.78

ROCO:8255 vs ORLY, AZO: Cyclically Adjusted Book per Share Comparison

For the Auto Parts subindustry, Actron Technology's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry

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

* The bar in red indicates where Actron Technology's Cyclically Adjusted PB Ratio falls into.


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

Actron Technology Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

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 Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=77.566/324.0540*324.0540
=77.566

Current CPI (Dec. 2025) = 324.0540.

Actron Technology Quarterly Data

Book Value per Share CPI Adj_Book
201603 41.895 238.132 57.011
201606 37.559 241.018 50.499
201609 38.646 241.428 51.872
201612 40.825 241.432 54.796
201703 41.964 243.801 55.777
201706 37.392 244.955 49.466
201709 40.787 246.819 53.550
201712 43.631 246.524 57.353
201803 48.949 249.554 63.562
201806 48.886 251.989 62.867
201809 44.090 252.439 56.598
201812 42.153 251.233 54.371
201903 44.235 254.202 56.390
201906 41.758 256.143 52.829
201909 45.396 256.759 57.294
201912 53.015 256.974 66.854
202003 48.520 258.115 60.915
202006 48.564 257.797 61.046
202009 50.205 260.280 62.506
202012 59.224 260.474 73.680
202103 57.666 264.877 70.549
202106 61.622 271.696 73.497
202109 61.146 274.310 72.234
202112 66.990 278.802 77.863
202203 59.514 287.504 67.080
202206 56.541 296.311 61.835
202209 57.236 296.808 62.490
202212 59.627 296.797 65.103
202303 59.026 301.836 63.371
202306 64.288 305.109 68.280
202309 74.927 307.789 78.886
202312 79.882 306.746 84.389
202403 80.227 312.332 83.238
202406 82.313 314.175 84.901
202409 80.376 315.301 82.607
202412 78.022 315.605 80.111
202503 71.295 319.799 72.244
202506 69.183 322.561 69.503
202509 76.580 324.800 76.404
202512 77.566 324.054 77.566

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of NT$65.78 mean?
Actron Technology (ROCO:8255) has a Cyclically Adjusted Book per Share of NT$65.78 as of Dec. 2025. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Actron Technology and its competitors.
Is Actron Technology's Cyclically Adjusted Book per Share too high?
Actron Technology's current Cyclically Adjusted Book per Share is NT$65.78. 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 Cyclically Adjusted Book per Share compare to ORLY and AZO?
Actron Technology's Cyclically Adjusted Book per Share of NT$65.78 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 Cyclically Adjusted Book per Share for a Vehicles & Parts company?
A good Cyclically Adjusted Book per Share depends on the Vehicles & Parts industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Actron Technology and its competitors. Actron Technology's current Cyclically Adjusted Book per Share is NT$65.78. 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$207.11, compared to a current price of NT$176.50 — trading 14.8% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$65.78. 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 Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Actron Technology (ROCO:8255), the current Cyclically Adjusted Book per Share is NT$65.78 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$207.11. GuruFocus considers Actron Technology to be Modestly Undervalued.

Key valuation signals for ROCO:8255:

  • Cyclically Adjusted Book per Share: NT$65.78
  • GF Value™: NT$207.11 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

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$176.50
Price
NT$207.11
GF Value