S-Tech (ROCO:1584) E10: NT$0.44 (As of Dec. 2025)


ROCO:1584 S-Tech Corp ROCO:1584
71 GF Score
Price NT$18.90
GF Value NT$25.04
Valuation Modestly Undervalued
! 8 Warning Signs
View Full Analysis

What is S-Tech E10?

S-Tech ROCO:1584 -0.79% 71 E10 is NT$0.44 as of Dec. 2025. GuruFocus rates ROCO:1584 with a GF Score™ of 71/100 and a GF Value™ of NT$25.04 (Modestly Undervalued). 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.

S-Tech's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.210. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$0.44 for the trailing ten years ended in Dec. 2025.

During the past 12 months, S-Tech's average E10 Growth Rate was 76.00% 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.

As of today (2026-07-03), S-Tech's current stock price is NT$18.90. S-Tech's E10 for the quarter that ended in Dec. 2025 was NT$0.44. S-Tech's Shiller PE Ratio of today is 42.95.

During the past 13 years, the highest Shiller PE Ratio of S-Tech was 1778.56. The lowest was 42.29. And the median was 102.59.


S-Tech  (ROCO:1584) 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.

S-Tech's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=18.90/0.44
=42.95

* 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 S-Tech was 1778.56. The lowest was 42.29. And the median was 102.59.


Be Aware

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


S-Tech E10 Related Terms


S-Tech E10 Historical Data

* Premium members only.

The historical data trend for S-Tech'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.

S-Tech E10 Chart

S-Tech 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 -0.71 -0.53 0.02 0.25 0.44

S-Tech 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 0.25 0.29 0.26 0.31 0.44

ROCO:1584 vs CRS, ATI, MLI: E10 Comparison

For the Metal Fabrication subindustry, S-Tech'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.


S-Tech Shiller PE Ratio vs Industrial Products Industry

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

* The bar in red indicates where S-Tech's Shiller PE Ratio falls into.


ROCO:1584
71GF Score
S-Tech Corp ROCO:1584
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

S-Tech 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, S-Tech'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)
=0.21/324.0540*324.0540
=0.210

Current CPI (Dec. 2025) = 324.0540.

S-Tech Quarterly Data

per share eps CPI Adj_EPS
201603 -0.074 238.132 -0.101
201606 0.093 241.018 0.125
201609 0.009 241.428 0.012
201612 -0.009 241.432 -0.012
201703 -0.158 243.801 -0.210
201706 -0.250 244.955 -0.331
201709 -0.111 246.819 -0.146
201712 -0.362 246.524 -0.476
201803 -0.371 249.554 -0.482
201806 -0.093 251.989 -0.120
201809 -0.037 252.439 -0.047
201812 -0.278 251.233 -0.359
201903 -0.148 254.202 -0.189
201906 -0.111 256.143 -0.140
201909 -0.139 256.759 -0.175
201912 -0.269 256.974 -0.339
202003 -0.056 258.115 -0.070
202006 0.093 257.797 0.117
202009 0.269 260.280 0.335
202012 0.074 260.474 0.092
202103 0.037 264.877 0.045
202106 0.037 271.696 0.044
202109 0.124 274.310 0.146
202112 0.230 278.802 0.267
202203 0.258 287.504 0.291
202206 0.345 296.311 0.377
202209 0.267 296.808 0.292
202212 0.207 296.797 0.226
202303 0.326 301.836 0.350
202306 0.514 305.109 0.546
202309 0.484 307.789 0.510
202312 1.686 306.746 1.781
202403 0.300 312.332 0.311
202406 1.000 314.175 1.031
202409 0.440 315.301 0.452
202412 -0.180 315.605 -0.185
202503 0.270 319.799 0.274
202506 -0.220 322.561 -0.221
202509 0.190 324.800 0.190
202512 0.210 324.054 0.210

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$0.44 mean?
S-Tech (ROCO:1584) has a E10 of NT$0.44 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on S-Tech and its competitors.
Is S-Tech's E10 too high?
S-Tech's current E10 is NT$0.44. Overall, S-Tech has a GF Score™ of 71/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does S-Tech's E10 compare to CRS and ATI?
S-Tech's E10 of NT$0.44 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 S-Tech and its competitors. S-Tech's current E10 is NT$0.44. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is S-Tech stock overvalued right now?
Based on GuruFocus' analysis, S-Tech (ROCO:1584) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$25.04, compared to a current price of NT$18.90 — trading 24.5% below its estimated fair value. The current E10 is NT$0.44. S-Tech's overall GF Score™ is 71/100 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 S-Tech (ROCO:1584), the current E10 is NT$0.44 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 S-Tech (ROCO:1584) Overvalued in 2026?

Based on GuruFocus' analysis, S-Tech stock appears to be undervalued. The current stock price of NT$18.90 is trading 24.5% below its estimated GF Value™ of NT$25.04. GuruFocus considers S-Tech to be Modestly Undervalued.

Key valuation signals for ROCO:1584:

  • E10: NT$0.44
  • GF Value™: NT$25.04 vs. price of NT$18.90 (24.5% below fair value)
  • GF Score™: 71/100 with 8 warning signs

No single metric tells the full story. See the ROCO:1584 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


S-Tech Business Description

Address No.15, Gong 1st Road, Environmental Science and Technology Park, Liouying, Tainan, TWN, 736
S-Tech Corp is mainly engaged in the manufacture, processing, and sales of special alloy materials and products. The company geographically operates in Europe, Asia, Taiwan, and other countries, out of which Europe derives the maximum revenue.
71GF Score

Get the complete analysis for ROCO:1584

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

NT$18.90
Price
NT$25.04
GF Value