Aethertek Technology Co (ROCO:3219) E10: NT$0.36 (As of Dec. 2025)

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ROCO:3219 Aethertek Technology Co Ltd ROCO:3219
75 GF Score
Price NT$65.10
GF Value NT$70.08
Valuation Fairly Valued
! 1 Warning Sign
View Full Analysis

What is Aethertek Technology Co E10?

Aethertek Technology Co ROCO:3219 -9.96% 75 E10 is NT$0.36 as of Dec. 2025. GuruFocus rates ROCO:3219 with a GF Score™ of 75/100 and a GF Value™ of NT$70.08 (Fairly Valued). The stock has 1 warning sign 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.

Aethertek Technology Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$-0.130. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$0.36 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Aethertek Technology Co's average E10 Growth Rate was 200.00% per year. During the past 3 years, the average E10 Growth Rate was 58.70% 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 Aethertek Technology Co was 58.70% per year. The lowest was 58.70% per year. And the median was 58.70% per year.

As of today (2026-07-17), Aethertek Technology Co's current stock price is NT$65.10. Aethertek Technology Co's E10 for the quarter that ended in Dec. 2025 was NT$0.36. Aethertek Technology Co's Shiller PE Ratio of today is 180.83.

During the past 13 years, the highest Shiller PE Ratio of Aethertek Technology Co was 968.57. The lowest was 161.94. And the median was 350.21.


Aethertek Technology Co  (ROCO:3219) 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.

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

Shiller PE Ratio=Share Price/E10
=65.10/0.36
=180.83

* 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 Aethertek Technology Co was 968.57. The lowest was 161.94. And the median was 350.21.


Be Aware

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


Aethertek Technology Co E10 Related Terms


Aethertek Technology Co E10 Historical Data

* Premium members only.

The historical data trend for Aethertek Technology Co'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.

Aethertek Technology Co E10 Chart

Aethertek Technology Co 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 -0.38 0.09 0.12 0.12 0.36

Aethertek Technology Co 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 0.12 0.16 0.26 0.31 0.36

ROCO:3219 vs GEV, ETN, PH: E10 Comparison

For the Specialty Industrial Machinery subindustry, Aethertek Technology Co'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.


Aethertek Technology Co Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Aethertek Technology Co's Shiller PE Ratio distribution charts can be found below:

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


ROCO:3219
75GF Score
Aethertek Technology Co Ltd ROCO:3219
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aethertek Technology Co 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, Aethertek Technology Co'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)
=-0.13/324.0540*324.0540
=-0.130

Current CPI (Dec. 2025) = 324.0540.

Aethertek Technology Co Quarterly Data

per share eps CPI Adj_EPS
201603 0.221 238.132 0.301
201606 0.095 241.018 0.128
201609 -1.229 241.428 -1.650
201612 -0.835 241.432 -1.121
201703 -0.552 243.801 -0.734
201706 0.662 244.955 0.876
201709 0.820 246.819 1.077
201712 -0.200 246.524 -0.263
201803 -0.640 249.554 -0.831
201806 -0.730 251.989 -0.939
201809 -0.600 252.439 -0.770
201812 0.230 251.233 0.297
201903 0.000 254.202 0.000
201906 0.070 256.143 0.089
201909 -2.400 256.759 -3.029
201912 -1.500 256.974 -1.892
202003 -1.250 258.115 -1.569
202006 0.850 257.797 1.068
202009 0.480 260.280 0.598
202012 -0.230 260.474 -0.286
202103 0.010 264.877 0.012
202106 1.890 271.696 2.254
202109 4.010 274.310 4.737
202112 0.410 278.802 0.477
202203 0.410 287.504 0.462
202206 0.510 296.311 0.558
202209 1.010 296.808 1.103
202212 0.240 296.797 0.262
202303 -0.560 301.836 -0.601
202306 0.470 305.109 0.499
202309 0.800 307.789 0.842
202312 -0.300 306.746 -0.317
202403 -0.530 312.332 -0.550
202406 0.830 314.175 0.856
202409 0.290 315.301 0.298
202412 -0.290 315.605 -0.298
202503 -0.040 319.799 -0.041
202506 0.890 322.561 0.894
202509 0.800 324.800 0.798
202512 -0.130 324.054 -0.130

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$0.36 mean?
Aethertek Technology Co (ROCO:3219) has a E10 of NT$0.36 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Aethertek Technology Co and its competitors.
Is Aethertek Technology Co's E10 too high?
Aethertek Technology Co's current E10 is NT$0.36. 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 E10 compare to GEV and ETN?
Aethertek Technology Co's E10 of NT$0.36 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good E10 depends on the Industrial Products 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 Aethertek Technology Co and its competitors. Aethertek Technology Co's current E10 is NT$0.36. 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$70.08, compared to a current price of NT$65.10 — trading 7.1% below its estimated fair value. The current E10 is NT$0.36. Aethertek Technology Co's overall GF Score™ is 75/100 with 1 warning sign 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 Aethertek Technology Co (ROCO:3219), the current E10 is NT$0.36 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 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$65.10 is trading 7.1% below its estimated GF Value™ of NT$70.08. GuruFocus considers Aethertek Technology Co to be Fairly Valued.

Key valuation signals for ROCO:3219:

  • E10: NT$0.36
  • GF Value™: NT$70.08 vs. price of NT$65.10 (7.1% below fair value)
  • GF Score™: 75/100 with 1 warning sign

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.
75GF Score

Get the complete analysis for ROCO:3219

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

NT$65.10
Price
NT$70.08
GF Value