Tera Autotech (ROCO:6234) E10: NT$1.16 (As of Dec. 2025)

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ROCO:6234 Tera Autotech Corp ROCO:6234
51 GF Score
Price NT$36.00
GF Value NT$14.86
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Tera Autotech E10?

Tera Autotech ROCO:6234 +1.27% 51 E10 is NT$1.16 as of Dec. 2025. GuruFocus rates ROCO:6234 with a GF Score™ of 51/100 and a GF Value™ of NT$14.86 (Significantly Overvalued). The stock has 8 warning signs 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.

Tera Autotech's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.420. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$1.16 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Tera Autotech's average E10 Growth Rate was -23.70% per year. During the past 3 years, the average E10 Growth Rate was 1.20% 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 Tera Autotech was 44.70% per year. The lowest was 1.20% per year. And the median was 33.40% per year.

As of today (2026-07-26), Tera Autotech's current stock price is NT$36.00. Tera Autotech's E10 for the quarter that ended in Dec. 2025 was NT$1.16. Tera Autotech's Shiller PE Ratio of today is 31.03.

During the past 13 years, the highest Shiller PE Ratio of Tera Autotech was 82.01. The lowest was 12.79. And the median was 25.73.


Tera Autotech  (ROCO:6234) 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.

Tera Autotech's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=36.00/1.16
=31.03

* 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 Tera Autotech was 82.01. The lowest was 12.79. And the median was 25.73.


Be Aware

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


Tera Autotech E10 Related Terms


Tera Autotech E10 Historical Data

* Premium members only.

The historical data trend for Tera Autotech'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.

Tera Autotech E10 Chart

Tera Autotech 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 0.64 1.12 0.00 1.52 1.16

Tera Autotech 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 1.52 1.54 1.34 1.35 1.16

ROCO:6234 vs SNA, RBC, LECO: E10 Comparison

For the Tools & Accessories subindustry, Tera Autotech'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.


Tera Autotech Shiller PE Ratio vs Industrial Products Industry

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

* The bar in red indicates where Tera Autotech's Shiller PE Ratio falls into.


ROCO:6234
51GF Score
Tera Autotech Corp ROCO:6234
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tera Autotech 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, Tera Autotech'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)
=0.42/324.0540*324.0540
=0.420

Current CPI (Dec. 2025) = 324.0540.

Tera Autotech Quarterly Data

per share eps CPI Adj_EPS
201603 0.083 238.132 0.113
201606 -0.102 241.018 -0.137
201609 -0.028 241.428 -0.038
201612 0.105 241.432 0.141
201703 -0.120 243.801 -0.160
201706 0.213 244.955 0.282
201709 0.176 246.819 0.231
201712 0.046 246.524 0.060
201803 0.111 249.554 0.144
201806 0.213 251.989 0.274
201809 0.185 252.439 0.237
201812 0.352 251.233 0.454
201903 0.222 254.202 0.283
201906 0.546 256.143 0.691
201909 0.810 256.759 1.022
201912 0.200 256.974 0.252
202003 0.200 258.115 0.251
202006 0.720 257.797 0.905
202009 0.120 260.280 0.149
202012 0.130 260.474 0.162
202103 0.230 264.877 0.281
202106 0.690 271.696 0.823
202109 0.190 274.310 0.224
202112 0.130 278.802 0.151
202203 1.090 287.504 1.229
202206 0.170 296.311 0.186
202209 0.430 296.808 0.469
202212 0.130 296.797 0.142
202303 0.140 301.836 0.150
202306 0.760 305.109 0.807
202309 0.370 307.789 0.390
202312 0.000 306.746 0.000
202403 0.480 312.332 0.498
202406 0.300 314.175 0.309
202409 0.050 315.301 0.051
202412 0.220 315.605 0.226
202503 0.190 319.799 0.193
202506 -0.860 322.561 -0.864
202509 0.290 324.800 0.289
202512 0.420 324.054 0.420

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$1.16 mean?
Tera Autotech (ROCO:6234) has a E10 of NT$1.16 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tera Autotech and its competitors.
Is Tera Autotech's E10 too high?
Tera Autotech's current E10 is NT$1.16. Overall, Tera Autotech has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tera Autotech's E10 compare to SNA and RBC?
Tera Autotech's E10 of NT$1.16 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 Tera Autotech and its competitors. Tera Autotech's current E10 is NT$1.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tera Autotech stock overvalued right now?
Based on GuruFocus' analysis, Tera Autotech (ROCO:6234) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$14.86, compared to a current price of NT$36.00 — trading 142.3% above its estimated fair value. The current E10 is NT$1.16. Tera Autotech's overall GF Score™ is 51/100 with 8 warning signs 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 Tera Autotech (ROCO:6234), the current E10 is NT$1.16 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 Tera Autotech (ROCO:6234) Overvalued in 2026?

Based on GuruFocus' analysis, Tera Autotech stock appears to be overvalued. The current stock price of NT$36.00 is trading 142.3% above its estimated GF Value™ of NT$14.86. GuruFocus considers Tera Autotech to be Significantly Overvalued.

Key valuation signals for ROCO:6234:

  • E10: NT$1.16
  • GF Value™: NT$14.86 vs. price of NT$36.00 (142.3% above fair value)
  • GF Score™: 51/100 with 8 warning signs

No single metric tells the full story. See the ROCO:6234 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tera Autotech Business Description

Address No.1,Gong 7th Road, Dajia District, Taichung City, TWN, 437
Tera Autotech Corp is a Taiwan-based company specializing in the research, development, design, manufacture, sale, and import and export of industrial automation equipment and precision miniature drills. The company provides automation solutions for diverse industries such as semiconductor, LCD, solar, and printed circuit board manufacturing. Geographically, it serves Taiwan and China. The operating segments of the company are the Equipment Department and the Drill Department, with maximum revenue being generated from the Drill Department.
51GF Score

Get the complete analysis for ROCO:6234

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

NT$36.00
Price
NT$14.86
GF Value