Tatung Co (TPE:2371) E10: NT$0.22 (As of Dec. 2025)


TPE:2371 Tatung Co Ltd TPE:2371
71 GF Score
Price NT$28.00
GF Value NT$55.13
Valuation Possible Value Trap
! 8 Warning Signs
View Full Analysis

What is Tatung Co E10?

Tatung Co TPE:2371 +2.00% 71 E10 is NT$0.22 as of Dec. 2025. GuruFocus rates TPE:2371 with a GF Score™ of 71/100 and a GF Value™ of NT$55.13 (Possible Value Trap). 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.

Tatung Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$-6.101. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$0.22 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Tatung Co's average E10 Growth Rate was -60.70% 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 Tatung Co was 59.50% per year. The lowest was 23.60% per year. And the median was 45.50% per year.

As of today (2026-07-05), Tatung Co's current stock price is NT$28.00. Tatung Co's E10 for the quarter that ended in Dec. 2025 was NT$0.22. Tatung Co's Shiller PE Ratio of today is 127.27.

During the past 13 years, the highest Shiller PE Ratio of Tatung Co was 344.74. The lowest was 40.71. And the median was 82.42.


Tatung Co  (TPE:2371) 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.

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

Shiller PE Ratio=Share Price/E10
=28.00/0.22
=127.27

* 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 Tatung Co was 344.74. The lowest was 40.71. And the median was 82.42.


Be Aware

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


Tatung Co E10 Related Terms


Tatung Co E10 Historical Data

* Premium members only.

The historical data trend for Tatung 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.

Tatung Co E10 Chart

Tatung 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 -0.87 -0.27 -0.06 0.56 0.22

Tatung 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 0.56 0.61 0.67 0.77 0.22

TPE:2371 vs HON, MMM: E10 Comparison

For the Conglomerates subindustry, Tatung 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.


Tatung Co Shiller PE Ratio vs Conglomerates Industry

For the Conglomerates industry and Industrials sector, Tatung Co's Shiller PE Ratio distribution charts can be found below:

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


TPE:2371
71GF Score
Tatung Co Ltd TPE:2371
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tatung 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, Tatung 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)
=-6.101/324.0540*324.0540
=-6.101

Current CPI (Dec. 2025) = 324.0540.

Tatung Co Quarterly Data

per share eps CPI Adj_EPS
201603 -0.368 238.132 -0.501
201606 -0.326 241.018 -0.438
201609 -0.200 241.428 -0.268
201612 -0.189 241.432 -0.254
201703 0.042 243.801 0.056
201706 0.253 244.955 0.335
201709 -0.063 246.819 -0.083
201712 -0.168 246.524 -0.221
201803 -0.347 249.554 -0.451
201806 -0.621 251.989 -0.799
201809 -0.926 252.439 -1.189
201812 -3.105 251.233 -4.005
201903 1.411 254.202 1.799
201906 -2.042 256.143 -2.583
201909 1.084 256.759 1.368
201912 0.842 256.974 1.062
202003 0.158 258.115 0.198
202006 -0.084 257.797 -0.106
202009 -0.074 260.280 -0.092
202012 -0.484 260.474 -0.602
202103 -0.137 264.877 -0.168
202106 0.368 271.696 0.439
202109 0.337 274.310 0.398
202112 1.084 278.802 1.260
202203 0.232 287.504 0.261
202206 0.200 296.311 0.219
202209 3.653 296.808 3.988
202212 0.137 296.797 0.150
202303 0.211 301.836 0.227
202306 0.263 305.109 0.279
202309 0.242 307.789 0.255
202312 0.474 306.746 0.501
202403 0.295 312.332 0.306
202406 -0.370 314.175 -0.382
202409 3.100 315.301 3.186
202412 3.450 315.605 3.542
202503 0.147 319.799 0.149
202506 0.220 322.561 0.221
202509 0.280 324.800 0.279
202512 -6.101 324.054 -6.101

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$0.22 mean?
Tatung Co (TPE:2371) has a E10 of NT$0.22 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tatung Co and its competitors.
Is Tatung Co's E10 too high?
Tatung Co's current E10 is NT$0.22. Overall, Tatung Co has a GF Score™ of 71/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tatung Co's E10 compare to HON and MMM?
Tatung Co's E10 of NT$0.22 can be compared against companies in the Conglomerates 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 Conglomerates company?
A good E10 depends on the Conglomerates 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 Tatung Co and its competitors. Tatung Co's current E10 is NT$0.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tatung Co stock overvalued right now?
Based on GuruFocus' analysis, Tatung Co (TPE:2371) is currently considered Possible Value Trap. The stock's GF Value™ is NT$55.13, compared to a current price of NT$28.00 — trading 49.2% below its estimated fair value. The current E10 is NT$0.22. Tatung Co'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 Tatung Co (TPE:2371), the current E10 is NT$0.22 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 Tatung Co (TPE:2371) Overvalued in 2026?

Based on GuruFocus' analysis, Tatung Co stock appears to be undervalued. The current stock price of NT$28.00 is trading 49.2% below its estimated GF Value™ of NT$55.13. GuruFocus considers Tatung Co to be Possible Value Trap.

Key valuation signals for TPE:2371:

  • E10: NT$0.22
  • GF Value™: NT$55.13 vs. price of NT$28.00 (49.2% below fair value)
  • GF Score™: 71/100 with 8 warning signs

No single metric tells the full story. See the TPE:2371 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tatung Co Business Description

Address Zhongshan North Road, No. 22, Section 3, Zhongshan District, Taipei, TWN, 104427
Tatung Co Ltd is a Taiwan-based conglomerate that operates through the following business groups. Electric power, system integration and new energy; its segmensta are : Electric power,system integration and new energy segment; Consumer electronics segment; ; and Other Business segment. It generates the majority of its revenue from the Electric power, system integration and new energy segment which develops, manufactures, and sells related components, intelligent grids, smart grid portals, photovoltaics, motors, machinery, energy control, green investment, and miscellaneous systems. Its geographical operations include Taiwan, Asia, Europe, America, and Others.
71GF Score

Get the complete analysis for TPE:2371

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

NT$28.00
Price
NT$55.13
GF Value