Formosan Union Chemical (TPE:1709) E10: NT$1.58 (As of Dec. 2025)


TPE:1709 Formosan Union Chemical Corp TPE:1709
79 GF Score
Price NT$21.05
GF Value NT$18.58
Valuation Modestly Overvalued
! 6 Warning Signs
View Full Analysis

What is Formosan Union Chemical E10?

Formosan Union Chemical TPE:1709 -1.64% 79 E10 is NT$1.58 as of Dec. 2025. GuruFocus rates TPE:1709 with a GF Score™ of 79/100 and a GF Value™ of NT$18.58 (Modestly Overvalued). The stock has 6 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.

Formosan Union Chemical's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.360. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$1.58 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Formosan Union Chemical's average E10 Growth Rate was -0.60% per year. During the past 3 years, the average E10 Growth Rate was 3.90% per year. During the past 5 years, the average E10 Growth Rate was 6.60% 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 Formosan Union Chemical was 8.90% per year. The lowest was -1.10% per year. And the median was 5.20% per year.

As of today (2026-06-28), Formosan Union Chemical's current stock price is NT$21.05. Formosan Union Chemical's E10 for the quarter that ended in Dec. 2025 was NT$1.58. Formosan Union Chemical's Shiller PE Ratio of today is 13.32.

During the past 13 years, the highest Shiller PE Ratio of Formosan Union Chemical was 24.92. The lowest was 8.88. And the median was 13.34.


Formosan Union Chemical  (TPE:1709) 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.

Formosan Union Chemical's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=21.05/1.58
=13.32

* 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 Formosan Union Chemical was 24.92. The lowest was 8.88. And the median was 13.34.


Be Aware

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


Formosan Union Chemical E10 Related Terms


Formosan Union Chemical E10 Historical Data

* Premium members only.

The historical data trend for Formosan Union Chemical'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.

Formosan Union Chemical E10 Chart

Formosan Union Chemical 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 1.23 1.41 1.46 1.59 1.58

Formosan Union Chemical 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 1.59 1.64 1.60 1.57 1.58

TPE:1709 vs DOW: E10 Comparison

For the Chemicals subindustry, Formosan Union Chemical'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.


Formosan Union Chemical Shiller PE Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Formosan Union Chemical's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Formosan Union Chemical's Shiller PE Ratio falls into.


TPE:1709
79GF Score
Formosan Union Chemical Corp TPE:1709
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Formosan Union Chemical 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, Formosan Union Chemical'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)
=0.36/324.0540*324.0540
=0.360

Current CPI (Dec. 2025) = 324.0540.

Formosan Union Chemical Quarterly Data

per share eps CPI Adj_EPS
201603 0.406 238.132 0.552
201606 0.548 241.018 0.737
201609 0.432 241.428 0.580
201612 0.411 241.432 0.552
201703 0.305 243.801 0.405
201706 0.484 244.955 0.640
201709 0.347 246.819 0.456
201712 0.189 246.524 0.248
201803 0.221 249.554 0.287
201806 0.453 251.989 0.583
201809 0.242 252.439 0.311
201812 -0.156 251.233 -0.201
201903 0.140 254.202 0.178
201906 0.110 256.143 0.139
201909 0.110 256.759 0.139
201912 0.070 256.974 0.088
202003 0.200 258.115 0.251
202006 0.270 257.797 0.339
202009 0.380 260.280 0.473
202012 0.310 260.474 0.386
202103 0.530 264.877 0.648
202106 0.580 271.696 0.692
202109 0.580 274.310 0.685
202112 0.280 278.802 0.325
202203 0.680 287.504 0.766
202206 0.750 296.311 0.820
202209 0.540 296.808 0.590
202212 0.300 296.797 0.328
202303 0.200 301.836 0.215
202306 0.260 305.109 0.276
202309 0.330 307.789 0.347
202312 0.090 306.746 0.095
202403 0.390 312.332 0.405
202406 0.580 314.175 0.598
202409 0.410 315.301 0.421
202412 0.160 315.605 0.164
202503 0.400 319.799 0.405
202506 0.130 322.561 0.131
202509 0.340 324.800 0.339
202512 0.360 324.054 0.360

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$1.58 mean?
Formosan Union Chemical (TPE:1709) has a E10 of NT$1.58 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Formosan Union Chemical and its competitors.
Is Formosan Union Chemical's E10 too high?
Formosan Union Chemical's current E10 is NT$1.58. Overall, Formosan Union Chemical has a GF Score™ of 79/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Formosan Union Chemical's E10 compare to DOW?
Formosan Union Chemical's E10 of NT$1.58 can be compared against companies in the Chemicals 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 Chemicals company?
A good E10 depends on the Chemicals 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 Formosan Union Chemical and its competitors. Formosan Union Chemical's current E10 is NT$1.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Formosan Union Chemical stock overvalued right now?
Based on GuruFocus' analysis, Formosan Union Chemical (TPE:1709) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$18.58, compared to a current price of NT$21.05 — trading 13.3% above its estimated fair value. The current E10 is NT$1.58. Formosan Union Chemical's overall GF Score™ is 79/100 with 6 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 Formosan Union Chemical (TPE:1709), the current E10 is NT$1.58 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 Formosan Union Chemical (TPE:1709) Overvalued in 2026?

Based on GuruFocus' analysis, Formosan Union Chemical stock appears to be overvalued. The current stock price of NT$21.05 is trading 13.3% above its estimated GF Value™ of NT$18.58. GuruFocus considers Formosan Union Chemical to be Modestly Overvalued.

Key valuation signals for TPE:1709:

  • E10: NT$1.58
  • GF Value™: NT$18.58 vs. price of NT$21.05 (13.3% above fair value)
  • GF Score™: 79/100 with 6 warning signs

No single metric tells the full story. See the TPE:1709 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Formosan Union Chemical Business Description

Address Liuzhou Street, 7th Floor, No. 80, Wanhua District, Taipei, TWN, 108
Formosan Union Chemical Corp is a Taiwan-based company principally engaged in the production, processing, and trading of chemical products. Its key products are alkyl benzene, nonyl phenol, and hydrogenated hydrocarbon resin and its derivatives. The products are mainly used as raw materials for detergents, surfactants, rubbers, and plastic anti-oxidant agents, among others.
79GF Score

Get the complete analysis for TPE:1709

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

NT$21.05
Price
NT$18.58
GF Value