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Aethertek Technology CoROCO:3219 -1.94%75 Cyclically Adjusted PB Ratio is 4.22 as of Aug. 18, 2026, which is 16% above its 10-year median of 3.63. GuruFocus rates ROCO:3219 with a GF Score™ of 75/100 and a GF Value™ of NT$76.50 (Fairly Valued). The stock has 2 warning signs investors should review. Among 2,203 Industrial Products companies, Aethertek Technology Co ranks worse than 74.04% on this metric.
The historical rank and industry rank for Aethertek Technology Co's Cyclically Adjusted PB Ratio or its related term are showing as below:
ROCO:3219'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.18 Med: 3.63 Max: 15.39
Current: 4.3
During the past years, Aethertek Technology Co's highest Cyclically Adjusted PB Ratio was 15.39. The lowest was 1.18. And the median was 3.63.
ROCO:3219's Cyclically Adjusted PB Ratio is ranked worse than 74.04% of 2203
companies
in the Industrial Products industry
Industry Median: 2.18
vs ROCO:3219: 4.30
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.
Aethertek Technology Co's adjusted book value per share data for the three months ended in Jun. 2026 was NT$21.168. 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$16.79 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Aethertek Technology Co (ROCO:3219) 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.
Aethertek Technology Co Cyclically Adjusted PB Ratio Related Terms
Aethertek Technology Co Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Aethertek Technology Co'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.
Aethertek Technology Co Cyclically Adjusted PB Ratio Chart
ROCO:3219 vs GEV, ETN, PH: Cyclically Adjusted PB Ratio Comparison
For the Specialty Industrial Machinery subindustry, Aethertek Technology Co'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.
Aethertek Technology Co Cyclically Adjusted PB Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Aethertek Technology Co's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Aethertek Technology Co's Cyclically Adjusted PB Ratio falls into.
Aethertek Technology Co 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.
* 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 4.22 mean?
Aethertek Technology Co (ROCO:3219) has a Cyclically Adjusted PB Ratio of 4.22 as of Aug. 18, 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 Aethertek Technology Co and its competitors. This is 16% above median its historical median of 3.63. Over the past decade, Aethertek Technology Co's Cyclically Adjusted PB Ratio has ranged from 1.18 to 15.39. According to the industry distribution chart, Aethertek Technology Co ranks #1631 out of 2203 companies in the Industrial Products industry, placing it in the top 74%.
Is Aethertek Technology Co's Cyclically Adjusted PB Ratio too high?
Aethertek Technology Co's current Cyclically Adjusted PB Ratio of 4.22 is 16% above median its 10-year median of 3.63. Over the past 10 years, this metric has ranged from a low of 1.18 to a high of 15.39. The Industrial Products industry median Cyclically Adjusted PB Ratio is 2.18. Aethertek Technology Co's value of 4.22 is 93.6% above this industry median. Based on the distribution chart, Aethertek Technology Co ranks #1631 out of 2203 companies in the Industrial Products industry, which is below the industry midpoint. Overall, Aethertek Technology Co has a GF Score™ of 75/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aethertek Technology Co's Cyclically Adjusted PB Ratio compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Aethertek Technology Co ranks #1631 out of 2203 companies for Cyclically Adjusted PB Ratio. This places Aethertek Technology Co in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 2.18. Aethertek Technology Co's value of 4.22 is 93.6% above this benchmark. Historically, Aethertek Technology Co's own Cyclically Adjusted PB Ratio has ranged from 1.18 to 15.39 over the past decade. While the company's 10-year median is 3.63 vs. the industry median of 2.18, Aethertek Technology Co 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 an Industrial Products company?
The median Cyclically Adjusted PB Ratio among Industrial Products companies is 2.18, based on 2,203 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. Aethertek Technology Co's current Cyclically Adjusted PB Ratio of 4.22 is 93.6% 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 Aethertek Technology Co and its competitors. For the Industrial Products industry, the median Cyclically Adjusted PB Ratio is 2.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aethertek Technology Co's current Cyclically Adjusted PB Ratio is 4.22, which is 16% above median its own 10-year median of 3.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aethertek Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Aethertek Technology Co (ROCO:3219) is currently considered Fairly Valued. The stock's GF Value™ is NT$76.50, compared to a current price of NT$70.80 — trading 7.5% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 4.22, which is 16% above median its 10-year median of 3.63 and 93.6% above the Industrial Products industry median of 2.18. Aethertek Technology Co's overall GF Score™ is 75/100 with 2 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 Aethertek Technology Co (ROCO:3219), the current Cyclically Adjusted PB Ratio is 4.22 as of Aug. 18, 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 Aethertek Technology Co (ROCO:3219) Overvalued in 2026?
Based on GuruFocus' analysis, Aethertek Technology Co stock appears to be undervalued.
The current stock price of NT$70.80 is trading 7.5% below its estimated GF Value™ of NT$76.50.
GuruFocus considers Aethertek Technology Co to be Fairly Valued.
Key valuation signals for ROCO:3219:
Cyclically Adjusted PB Ratio: 4.22 (16% above median its 10-year median of 3.63)
GF Value™: NT$76.50 vs. price of NT$70.80 (7.5% below fair value)
Industry Position: 93.6% above the Industrial Products median (#1631 of 2203)
No single metric tells the full story. See the ROCO:3219 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aethertek Technology Co Ltd is a Taiwan-based company mainly engaged in the design, manufacturing, and sale of automation machinery and related equipment. Its product portfolio includes the T800 Functional Tester, T1000 Board-Level Tester, passive antennas, RF switches, shield boxes, and micro-probing equipment for microscale diagnostics, among others. In addition to its core products, the company provides solutions for 5G communication and offers test and measurement devices across various industries. Aethertek also offers design services encompassing software, hardware, and antenna development. Geographically, it derives maximum revenue from China, followed by Taiwan, India, and other regions.
75GF Score
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