Aethertek Technology Co (ROCO:3219) Return-on-Tangible-Equity: 50.35% (As of Jun. 2026) — 1102% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

ROCO:3219 Aethertek Technology Co Ltd ROCO:3219
77 GF Score
Price NT$90.40
GF Value NT$80.87
Valuation Modestly Overvalued
! 2 Warning Signs
View Full Analysis

What is Aethertek Technology Co Return-on-Tangible-Equity?

Aethertek Technology Co ROCO:3219 +1.35% 77 Return-on-Tangible-Equity is 50.35% as of Jun. 2026, which is 1102% above its 10-year median of 4.19. GuruFocus rates ROCO:3219 with a GF Score™ of 77/100 and a GF Value™ of NT$80.87 (Modestly Overvalued). The stock has 2 warning signs investors should review. Among 2,982 Industrial Products companies, Aethertek Technology Co ranks better than 83.7% on this metric.

Return-on-Tangible-Equity is calculated as Net Income divided by its average total shareholder tangible equity. Total shareholder tangible equity equals to Total Stockholders Equity minus Intangible Assets. Aethertek Technology Co's annualized net income for the quarter that ended in Jun. 2026 was NT$627 Mil. Aethertek Technology Co's average shareholder tangible equity for the quarter that ended in Jun. 2026 was NT$1,244 Mil. Therefore, Aethertek Technology Co's annualized Return-on-Tangible-Equity for the quarter that ended in Jun. 2026 was 50.35%.

The historical rank and industry rank for Aethertek Technology Co's Return-on-Tangible-Equity or its related term are showing as below:

ROCO:3219' s Return-on-Tangible-Equity Range Over the Past 10 Years
Min: -64.53   Med: 4.19   Max: 48.52
Current: 20.54

During the past 13 years, Aethertek Technology Co's highest Return-on-Tangible-Equity was 48.52%. The lowest was -64.53%. And the median was 4.19%.

ROCO:3219's Return-on-Tangible-Equity is ranked better than
83.7% of 2982 companies
in the Industrial Products industry
Industry Median: 7.01 vs ROCO:3219: 20.54

Aethertek Technology Co  (ROCO:3219) Return-on-Tangible-Equity Explanation

Return-on-Tangible-Equity measures the rate of return on the ownership interest (shareholder's tangible equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' tangible equity (shareholders equity minus intangibles). Return-on-Tangible-Equity shows how well a company uses investment funds to generate earnings growth. Return-on-Tangible-Equitys between 15% and 20% are considered desirable.


Be Aware

Net Income is used.

Because a company can increase its Return-on-Tangible-Equity by having more financial leverage, it is important to watch the leverage ratio when investing in high Return-on-Tangible-Equity companies. Like Return-on-Tangible-Asset, Return-on-Tangible-Equity is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.

Asset light businesses require very few assets to generate very high earnings. Their Return-on-Tangible-Equitys can be extremely high.


Aethertek Technology Co Return-on-Tangible-Equity Related Terms


Aethertek Technology Co Return-on-Tangible-Equity Historical Data

* Premium members only.

The historical data trend for Aethertek Technology Co's Return-on-Tangible-Equity 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 Return-on-Tangible-Equity Chart

Aethertek Technology Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Return-on-Tangible-Equity
Get a 7-Day Free Trial Premium Member Only Premium Member Only 48.52 15.50 2.91 2.08 9.92

Aethertek Technology Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Return-on-Tangible-Equity 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 24.26 20.97 -3.15 11.56 50.35

ROCO:3219 vs GEV, ETN, PH: Return-on-Tangible-Equity Comparison

For the Specialty Industrial Machinery subindustry, Aethertek Technology Co's Return-on-Tangible-Equity, along with its competitors' market caps and Return-on-Tangible-Equity 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 Return-on-Tangible-Equity vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Aethertek Technology Co's Return-on-Tangible-Equity distribution charts can be found below:

* The bar in red indicates where Aethertek Technology Co's Return-on-Tangible-Equity falls into.


ROCO:3219
77GF Score
Aethertek Technology Co Ltd ROCO:3219
Return-on-Tangible-Equity is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aethertek Technology Co Return-on-Tangible-Equity Calculation

Aethertek Technology Co's annualized Return-on-Tangible-Equity for the fiscal year that ended in Dec. 2025 is calculated as

Return-on-Tangible-Equity=Net Income/( (Total Tangible Equity+Total Tangible Equity)/ count )
(A: Dec. 2025 )  (A: Dec. 2024 )(A: Dec. 2025 )
=Net Income/( (Total Stockholders Equity - Intangible Assets+Total Stockholders Equity - Intangible Assets )/ count )
(A: Dec. 2025 )  (A: Dec. 2024 )(A: Dec. 2025 )
=108.421/( (1038.233+1147.41 )/ 2 )
=108.421/1092.8215
=9.92 %

Aethertek Technology Co's annualized Return-on-Tangible-Equity for the quarter that ended in Jun. 2026 is calculated as

Return-on-Tangible-Equity=Net Income/( (Total Tangible Equity+Total Tangible Equity)/ count )
(Q: Jun. 2026 )  (Q: Mar. 2026 )(Q: Jun. 2026 )
=Net Income/( (Total Stockholders Equity - Intangible Assets+Total Stockholders Equity - Intangible Assets)/ count )
(Q: Jun. 2026 )  (Q: Mar. 2026 )(Q: Jun. 2026 )
=626.512/( (1205.035+1283.835)/ 2 )
=626.512/1244.435
=50.35 %

* 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.

In the calculation of annual Return-on-Tangible-Equity, the net income of the last fiscal year and the average total shareholder tangible equity over the fiscal year are used. In calculating the quarterly data, the net income data used here is four times the quarterly (Jun. 2026) net income data. Return-on-Tangible-Equity is displayed in the 10-year financial page.

What does a Return-on-Tangible-Equity of 50.35% mean?
Aethertek Technology Co (ROCO:3219) has a Return-on-Tangible-Equity of 50.35% as of Jun. 2026. Return on tangible equity is the ratio of current-period net income to average two-period tangible equity. View historical data on Aethertek Technology Co and its competitors. This is 1102% above median its historical median of 4.19. According to the industry distribution chart, Aethertek Technology Co ranks #486 out of 2982 companies in the Industrial Products industry, placing it in the top 16.3%.
Is Aethertek Technology Co's Return-on-Tangible-Equity too high?
Aethertek Technology Co's current Return-on-Tangible-Equity of 50.35% is 1102% above median its 10-year median of 4.19. The Industrial Products industry median Return-on-Tangible-Equity is 7.01. Aethertek Technology Co's value of 50.35% is 618.3% above this industry median. Based on the distribution chart, Aethertek Technology Co ranks #486 out of 2982 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Aethertek Technology Co has a GF Score™ of 77/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Aethertek Technology Co's Return-on-Tangible-Equity compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Aethertek Technology Co ranks #486 out of 2982 companies for Return-on-Tangible-Equity. This places Aethertek Technology Co in the top 16% of its industry — outperforming the majority of peers. The industry median Return-on-Tangible-Equity is 7.01. Aethertek Technology Co's value of 50.35% is 618.3% above this benchmark. While the company's 10-year median is 4.19 vs. the industry median of 7.01, 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 Return-on-Tangible-Equity for an Industrial Products company?
The median Return-on-Tangible-Equity among Industrial Products companies is 7.01, based on 2,982 companies in the industry. Companies in the top quartile (top 25%) have a Return-on-Tangible-Equity significantly above this median, while those in the bottom quartile fall well below. However, Return-on-Tangible-Equity should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Aethertek Technology Co's current Return-on-Tangible-Equity of 50.35% is 618.3% 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 Return-on-Tangible-Equity mean?
A high Return-on-Tangible-Equity can signal that a stock is expensive relative to its fundamentals. Return on tangible equity is the ratio of current-period net income to average two-period tangible equity. View historical data on Aethertek Technology Co and its competitors. For the Industrial Products industry, the median Return-on-Tangible-Equity is 7.01 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aethertek Technology Co's current Return-on-Tangible-Equity is 50.35%, which is 1102% above median its own 10-year median of 4.19. 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 Modestly Overvalued. The stock's GF Value™ is NT$80.87, compared to a current price of NT$90.40 — trading 11.8% above its estimated fair value. The current Return-on-Tangible-Equity is 50.35%, which is 1102% above median its 10-year median of 4.19 and 618.3% above the Industrial Products industry median of 7.01. Aethertek Technology Co's overall GF Score™ is 77/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Return-on-Tangible-Equity calculated?
Return-on-Tangible-Equity is calculated from a company's financial statements. For Aethertek Technology Co (ROCO:3219), the current Return-on-Tangible-Equity is 50.35% as of Jun. 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 overvalued. The current stock price of NT$90.40 is trading 11.8% above its estimated GF Value™ of NT$80.87. GuruFocus considers Aethertek Technology Co to be Modestly Overvalued.

Key valuation signals for ROCO:3219:

  • Return-on-Tangible-Equity: 50.35% (1102% above median its 10-year median of 4.19)
  • GF Value™: NT$80.87 vs. price of NT$90.40 (11.8% above fair value)
  • GF Score™: 77/100 with 2 warning signs
  • Industry Position: 618.3% above the Industrial Products median (#486 of 2982)

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 Business Description

Address Ruiguang Road, 9th Floor, No. 607, Neihu District, Taipei, TWN, 114
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.
77GF Score

Get the complete analysis for ROCO:3219

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

NT$90.40
Price
NT$80.87
GF Value