TST Group Holding (TPE:4439) E10: NT$10.57 (As of Dec. 2025)


TPE:4439 TST Group Holding Ltd TPE:4439
78 GF Score
Price NT$91.40
GF Value NT$112.46
Valuation Modestly Undervalued
! 5 Warning Signs
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What is TST Group Holding E10?

TST Group Holding TPE:4439 +0.22% 78 E10 is NT$10.57 as of Dec. 2025. GuruFocus rates TPE:4439 with a GF Score™ of 78/100 and a GF Value™ of NT$112.46 (Modestly Undervalued). The stock has 5 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.

TST Group Holding's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was NT$7.210. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$10.57 for the trailing ten years ended in Dec. 2025.

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 (2026-07-02), TST Group Holding's current stock price is NT$ 91.40. TST Group Holding's E10 for the fiscal year that ended in Dec. 2025 was NT$10.57. TST Group Holding's Shiller PE Ratio of today is 8.65.

During the past 10 years, the highest Shiller PE Ratio of TST Group Holding was 9.74. The lowest was 7.89. And the median was 9.27.


TST Group Holding  (TPE:4439) 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.

TST Group Holding's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=91.40/10.57
=8.65

* 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 10 years, the highest Shiller P/E Ratio of TST Group Holding was 9.74. The lowest was 7.89. And the median was 9.27.


Be Aware

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


TST Group Holding E10 Related Terms


TST Group Holding E10 Historical Data

* Premium members only.

The historical data trend for TST Group Holding'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.

TST Group Holding E10 Chart

TST Group Holding 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 0.00 0.00 0.00 0.00 10.57

TST Group Holding 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 0.00 0.00 0.00 0.00 10.57

TST Group Holding E10 Competitor Comparison

For the Textile Manufacturing subindustry, TST Group Holding'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.


TST Group Holding Shiller PE Ratio vs Manufacturing - Apparel & Accessories Industry

For the Manufacturing - Apparel & Accessories industry and Consumer Cyclical sector, TST Group Holding's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where TST Group Holding's Shiller PE Ratio falls into.


TPE:4439
78GF Score
TST Group Holding Ltd TPE:4439
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

TST Group Holding 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, TST Group Holding's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=7.21/324.0540*324.0540
=7.210

Current CPI (Dec. 2025) = 324.0540.

TST Group Holding Annual Data

per_share_eps CPI Adj_EPS
201612 6.875 241.432 9.228
201712 9.392 246.524 12.346
201812 9.542 251.233 12.308
201912 11.592 256.974 14.618
202012 11.025 260.474 13.716
202112 8.930 278.802 10.379
202212 11.720 296.797 12.796
202312 10.690 306.746 11.293
202412 1.730 315.605 1.776
202512 7.210 324.054 7.210

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$10.57 mean?
TST Group Holding (TPE:4439) has a E10 of NT$10.57 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on TST Group Holding and its competitors.
Is TST Group Holding's E10 too high?
TST Group Holding's current E10 is NT$10.57. Overall, TST Group Holding has a GF Score™ of 78/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does TST Group Holding's E10 compare to competitors?
TST Group Holding's E10 of NT$10.57 can be compared against companies in the Manufacturing - Apparel & Accessories 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 a Manufacturing - Apparel & Accessories company?
A good E10 depends on the Manufacturing - Apparel & Accessories 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 TST Group Holding and its competitors. TST Group Holding's current E10 is NT$10.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TST Group Holding stock overvalued right now?
Based on GuruFocus' analysis, TST Group Holding (TPE:4439) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$112.46, compared to a current price of NT$91.40 — trading 18.7% below its estimated fair value. The current E10 is NT$10.57. TST Group Holding's overall GF Score™ is 78/100 with 5 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 TST Group Holding (TPE:4439), the current E10 is NT$10.57 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 TST Group Holding (TPE:4439) Overvalued in 2026?

Based on GuruFocus' analysis, TST Group Holding stock appears to be undervalued. The current stock price of NT$91.40 is trading 18.7% below its estimated GF Value™ of NT$112.46. GuruFocus considers TST Group Holding to be Modestly Undervalued.

Key valuation signals for TPE:4439:

  • E10: NT$10.57
  • GF Value™: NT$112.46 vs. price of NT$91.40 (18.7% below fair value)
  • GF Score™: 78/100 with 5 warning signs

No single metric tells the full story. See the TPE:4439 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


TST Group Holding Business Description

Address No. 178, Section 2, Nanjing East Road, 7th Floor, Zhongshan District, Taipei, TWN, 104
TST Group Holding Ltd is engaged in manufacturing, and trading of cotton fabric in the textile industry. The company's products are raw materials such as greige and colored fabrics for the midstream and upstream of the textile industry. The company's geographical segment includes Taiwan, China, Korea, Singapore, Hong Kong, Cambodia, Vietnam, Thailand, and others. The company derives a majority of its revenue from Taiwan.
78GF Score

Get the complete analysis for TPE:4439

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

NT$91.40
Price
NT$112.46
GF Value