Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Actron TechnologyROCO:8255 -1.97%84 Cyclically Adjusted PB Ratio is 2.21 as of Aug. 16, 2026, which is 20% below its 10-year median of 2.77. GuruFocus rates ROCO:8255 with a GF Score™ of 84/100 and a GF Value™ of NT$191.45 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 982 Vehicles & Parts companies, Actron Technology ranks worse than 66.7% on this metric.
The historical rank and industry rank for Actron Technology's Cyclically Adjusted PB Ratio or its related term are showing as below:
ROCO:8255'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.74 Med: 2.77 Max: 5.83
Current: 2.21
During the past years, Actron Technology's highest Cyclically Adjusted PB Ratio was 5.83. The lowest was 1.74. And the median was 2.77.
ROCO:8255's Cyclically Adjusted PB Ratio is ranked worse than 66.7% of 982
companies
in the Vehicles & Parts industry
Industry Median: 1.26
vs ROCO:8255: 2.21
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 adjusted book value per share data for the three months ended in Mar. 2026 was NT$76.655. 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$67.50 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Actron Technology (ROCO:8255) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Actron Technology Cyclically Adjusted PB Ratio Related Terms
Actron Technology Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Actron Technology's Cyclically Adjusted PB Ratio 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 PB Ratio Chart
ROCO:8255 vs ORLY, AZO: Cyclically Adjusted PB Ratio 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.
Actron Technology Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
Actron Technology's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
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.
What does a Cyclically Adjusted PB Ratio of 2.21 mean?
Actron Technology (ROCO:8255) has a Cyclically Adjusted PB Ratio of 2.21 as of Aug. 16, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Actron Technology and its competitors. This is 20% below median its historical median of 2.77. Over the past decade, Actron Technology's Cyclically Adjusted PB Ratio has ranged from 1.74 to 5.83. According to the industry distribution chart, Actron Technology ranks #655 out of 982 companies in the Vehicles & Parts industry, placing it in the top 66.7%.
Is Actron Technology's Cyclically Adjusted PB Ratio too high?
Actron Technology's current Cyclically Adjusted PB Ratio of 2.21 is 20% below median its 10-year median of 2.77. Over the past 10 years, this metric has ranged from a low of 1.74 to a high of 5.83. The Vehicles & Parts industry median Cyclically Adjusted PB Ratio is 1.26. Actron Technology's value of 2.21 is 75.4% above this industry median. Based on the distribution chart, Actron Technology ranks #655 out of 982 companies in the Vehicles & Parts industry, which is below the industry midpoint. 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 PB Ratio compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Actron Technology ranks #655 out of 982 companies for Cyclically Adjusted PB Ratio. This places Actron Technology in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.26. Actron Technology's value of 2.21 is 75.4% above this benchmark. Historically, Actron Technology's own Cyclically Adjusted PB Ratio has ranged from 1.74 to 5.83 over the past decade. While the company's 10-year median is 2.77 vs. the industry median of 1.26, Actron Technology has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Vehicles & Parts company?
The median Cyclically Adjusted PB Ratio among Vehicles & Parts companies is 1.26, based on 982 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Actron Technology's current Cyclically Adjusted PB Ratio of 2.21 is 75.4% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Actron Technology and its competitors. For the Vehicles & Parts industry, the median Cyclically Adjusted PB Ratio is 1.26 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Actron Technology's current Cyclically Adjusted PB Ratio is 2.21, which is 20% below median its own 10-year median of 2.77. 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$191.45, compared to a current price of NT$149.00 — trading 22.2% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.21, which is 20% below median its 10-year median of 2.77 and 75.4% above the Vehicles & Parts industry median of 1.26. Actron Technology's overall GF Score™ is 84/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Actron Technology (ROCO:8255), the current Cyclically Adjusted PB Ratio is 2.21 as of Aug. 16, 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 Actron Technology (ROCO:8255) Overvalued in 2026?
Based on GuruFocus' analysis, Actron Technology stock appears to be undervalued.
The current stock price of NT$149.00 is trading 22.2% below its estimated GF Value™ of NT$191.45.
GuruFocus considers Actron Technology to be Modestly Undervalued.
Key valuation signals for ROCO:8255:
Cyclically Adjusted PB Ratio: 2.21 (20% below median its 10-year median of 2.77)
GF Value™: NT$191.45 vs. price of NT$149.00 (22.2% below fair value)
Industry Position: 75.4% above the Vehicles & Parts median (#655 of 982)
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 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 PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:8255 has been successfully added to your 
