Taiwan Steel Union Co (TPE:6581) E10: NT$7.06 (As of Dec. 2025)


TPE:6581 Taiwan Steel Union Co Ltd TPE:6581
87 GF Score
Price NT$106.50
GF Value NT$96.94
Valuation Fairly Valued
! 5 Warning Signs
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What is Taiwan Steel Union Co E10?

Taiwan Steel Union Co TPE:6581 -0.47% 87 E10 is NT$7.06 as of Dec. 2025. GuruFocus rates TPE:6581 with a GF Score™ of 87/100 and a GF Value™ of NT$96.94 (Fairly Valued). 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.

Taiwan Steel Union Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$1.700. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$7.06 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 (2026-07-09), Taiwan Steel Union Co's current stock price is NT$106.50. Taiwan Steel Union Co's E10 for the quarter that ended in Dec. 2025 was NT$7.06. Taiwan Steel Union Co's Shiller PE Ratio of today is 15.08.

During the past 13 years, the highest Shiller PE Ratio of Taiwan Steel Union Co was 15.73. The lowest was 14.74. And the median was 15.30.


Taiwan Steel Union Co  (TPE:6581) 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.

Taiwan Steel Union Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=106.50/7.06
=15.08

* 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 Taiwan Steel Union Co was 15.73. The lowest was 14.74. And the median was 15.30.


Be Aware

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


Taiwan Steel Union Co E10 Related Terms


Taiwan Steel Union Co E10 Historical Data

* Premium members only.

The historical data trend for Taiwan Steel Union 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.

Taiwan Steel Union Co E10 Chart

Taiwan Steel Union 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 0.00 0.00 0.00 0.00 7.06

Taiwan Steel Union 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 0.00 0.00 7.09 7.09 7.06

TPE:6581 vs WM, RSG, WCN: E10 Comparison

For the Waste Management subindustry, Taiwan Steel Union 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.


Taiwan Steel Union Co Shiller PE Ratio vs Waste Management Industry

For the Waste Management industry and Industrials sector, Taiwan Steel Union Co's Shiller PE Ratio distribution charts can be found below:

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


TPE:6581
87GF Score
Taiwan Steel Union Co Ltd TPE:6581
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Taiwan Steel Union 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, Taiwan Steel Union 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)
=1.7/324.0540*324.0540
=1.700

Current CPI (Dec. 2025) = 324.0540.

Taiwan Steel Union Co Quarterly Data

per share eps CPI Adj_EPS
201512 0.000 236.525 0.000
201606 1.400 241.018 1.882
201609 1.170 241.428 1.570
201612 2.130 241.432 2.859
201703 1.570 243.801 2.087
201706 0.810 244.955 1.072
201709 2.420 246.819 3.177
201712 2.820 246.524 3.707
201803 1.210 249.554 1.571
201806 2.860 251.989 3.678
201809 0.590 252.439 0.757
201812 2.420 251.233 3.121
201903 1.090 254.202 1.390
201906 1.830 256.143 2.315
201909 0.350 256.759 0.442
201912 0.310 256.974 0.391
202003 -0.040 258.115 -0.050
202006 0.580 257.797 0.729
202009 1.000 260.280 1.245
202012 2.110 260.474 2.625
202103 0.590 264.877 0.722
202106 1.390 271.696 1.658
202109 0.790 274.310 0.933
202112 2.300 278.802 2.673
202203 1.400 287.504 1.578
202206 3.450 296.311 3.773
202209 1.940 296.808 2.118
202212 2.030 296.797 2.216
202303 0.770 301.836 0.827
202306 1.490 305.109 1.583
202309 0.560 307.789 0.590
202312 1.700 306.746 1.796
202403 1.170 312.332 1.214
202406 2.550 314.175 2.630
202409 1.400 315.301 1.439
202412 2.330 315.605 2.392
202503 1.280 319.799 1.297
202506 1.880 322.561 1.889
202509 1.290 324.800 1.287
202512 1.700 324.054 1.700

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$7.06 mean?
Taiwan Steel Union Co (TPE:6581) has a E10 of NT$7.06 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Taiwan Steel Union Co and its competitors.
Is Taiwan Steel Union Co's E10 too high?
Taiwan Steel Union Co's current E10 is NT$7.06. Overall, Taiwan Steel Union Co has a GF Score™ of 87/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Steel Union Co's E10 compare to WM and RSG?
Taiwan Steel Union Co's E10 of NT$7.06 can be compared against companies in the Waste Management 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 Waste Management company?
A good E10 depends on the Waste Management 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 Taiwan Steel Union Co and its competitors. Taiwan Steel Union Co's current E10 is NT$7.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Steel Union Co stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Steel Union Co (TPE:6581) is currently considered Fairly Valued. The stock's GF Value™ is NT$96.94, compared to a current price of NT$106.50 — trading 9.9% above its estimated fair value. The current E10 is NT$7.06. Taiwan Steel Union Co's overall GF Score™ is 87/100 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 Taiwan Steel Union Co (TPE:6581), the current E10 is NT$7.06 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 Taiwan Steel Union Co (TPE:6581) Overvalued in 2026?

Based on GuruFocus' analysis, Taiwan Steel Union Co stock appears to be overvalued. The current stock price of NT$106.50 is trading 9.9% above its estimated GF Value™ of NT$96.94. GuruFocus considers Taiwan Steel Union Co to be Fairly Valued.

Key valuation signals for TPE:6581:

  • E10: NT$7.06
  • GF Value™: NT$96.94 vs. price of NT$106.50 (9.9% above fair value)
  • GF Score™: 87/100 with 5 warning signs

No single metric tells the full story. See the TPE:6581 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Taiwan Steel Union Co Business Description

Address No. 36, Siangong North 1st Road, Changbin Industrial Zone, Shengang Township, Changhua, TWN, 50953
Taiwan Steel Union Co Ltd is a Taiwan-based waste management company. The company's main business is to dispose and reuse general industrial waste and hazardous industrial waste, as well as manufacture and trade non-ferrous metal (zinc oxide) and non-metallic mineral products.
87GF Score

Get the complete analysis for TPE:6581

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

NT$106.50
Price
NT$96.94
GF Value