Polytronics Technology (TPE:6224) E10: NT$4.16 (As of Dec. 2025)


TPE:6224 Polytronics Technology Corp TPE:6224
80 GF Score
Price NT$70.20
GF Value NT$56.62
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Polytronics Technology E10?

Polytronics Technology TPE:6224 -6.15% 80 E10 is NT$4.16 as of Dec. 2025. GuruFocus rates TPE:6224 with a GF Score™ of 80/100 and a GF Value™ of NT$56.62 (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.

Polytronics Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$-0.310. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$4.16 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Polytronics Technology's average E10 Growth Rate was -12.40% per year. During the past 3 years, the average E10 Growth Rate was -8.00% per year. During the past 5 years, the average E10 Growth Rate was -4.20% 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 Polytronics Technology was 1.70% per year. The lowest was -8.00% per year. And the median was -2.50% per year.

As of today (2026-06-30), Polytronics Technology's current stock price is NT$70.20. Polytronics Technology's E10 for the quarter that ended in Dec. 2025 was NT$4.16. Polytronics Technology's Shiller PE Ratio of today is 16.88.

During the past 13 years, the highest Shiller PE Ratio of Polytronics Technology was 31.44. The lowest was 8.50. And the median was 12.04.


Polytronics Technology  (TPE:6224) 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.

Polytronics Technology's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=70.20/4.16
=16.88

* 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 Polytronics Technology was 31.44. The lowest was 8.50. And the median was 12.04.


Be Aware

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


Polytronics Technology E10 Related Terms


Polytronics Technology E10 Historical Data

* Premium members only.

The historical data trend for Polytronics Technology'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.

Polytronics Technology E10 Chart

Polytronics Technology 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 5.49 5.34 5.04 4.75 4.16

Polytronics Technology 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 4.75 4.69 4.55 4.38 4.16

TPE:6224 vs APH, GLW: E10 Comparison

For the Electronic Components subindustry, Polytronics Technology'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.


Polytronics Technology Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Polytronics Technology's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Polytronics Technology's Shiller PE Ratio falls into.


TPE:6224
80GF Score
Polytronics Technology Corp TPE:6224
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Polytronics Technology 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, Polytronics Technology'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)
=-0.31/324.0540*324.0540
=-0.310

Current CPI (Dec. 2025) = 324.0540.

Polytronics Technology Quarterly Data

per share eps CPI Adj_EPS
201603 1.014 238.132 1.380
201606 1.487 241.018 1.999
201609 1.329 241.428 1.784
201612 1.113 241.432 1.494
201703 0.778 243.801 1.034
201706 1.044 244.955 1.381
201709 1.172 246.819 1.539
201712 0.995 246.524 1.308
201803 0.926 249.554 1.202
201806 1.418 251.989 1.824
201809 1.201 252.439 1.542
201812 0.719 251.233 0.927
201903 0.463 254.202 0.590
201906 1.034 256.143 1.308
201909 1.635 256.759 2.064
201912 1.359 256.974 1.714
202003 0.900 258.115 1.130
202006 1.180 257.797 1.483
202009 1.290 260.280 1.606
202012 1.590 260.474 1.978
202103 1.690 264.877 2.068
202106 1.710 271.696 2.040
202109 1.550 274.310 1.831
202112 0.940 278.802 1.093
202203 0.910 287.504 1.026
202206 -0.430 296.311 -0.470
202209 0.490 296.808 0.535
202212 0.050 296.797 0.055
202303 0.060 301.836 0.064
202306 0.450 305.109 0.478
202309 0.660 307.789 0.695
202312 0.050 306.746 0.053
202403 0.300 312.332 0.311
202406 0.430 314.175 0.444
202409 0.910 315.301 0.935
202412 0.510 315.605 0.524
202503 0.430 319.799 0.436
202506 0.400 322.561 0.402
202509 0.140 324.800 0.140
202512 -0.310 324.054 -0.310

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$4.16 mean?
Polytronics Technology (TPE:6224) has a E10 of NT$4.16 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Polytronics Technology and its competitors.
Is Polytronics Technology's E10 too high?
Polytronics Technology's current E10 is NT$4.16. Overall, Polytronics Technology has a GF Score™ of 80/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Polytronics Technology's E10 compare to APH and GLW?
Polytronics Technology's E10 of NT$4.16 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 Polytronics Technology and its competitors. Polytronics Technology's current E10 is NT$4.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Polytronics Technology stock overvalued right now?
Based on GuruFocus' analysis, Polytronics Technology (TPE:6224) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$56.62, compared to a current price of NT$70.20 — trading 24% above its estimated fair value. The current E10 is NT$4.16. Polytronics Technology's overall GF Score™ is 80/100 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 Polytronics Technology (TPE:6224), the current E10 is NT$4.16 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 Polytronics Technology (TPE:6224) Overvalued in 2026?

Based on GuruFocus' analysis, Polytronics Technology stock appears to be overvalued. The current stock price of NT$70.20 is trading 24% above its estimated GF Value™ of NT$56.62. GuruFocus considers Polytronics Technology to be Modestly Overvalued.

Key valuation signals for TPE:6224:

  • E10: NT$4.16
  • GF Value™: NT$56.62 vs. price of NT$70.20 (24% above fair value)
  • GF Score™: 80/100 with 6 warning signs

No single metric tells the full story. See the TPE:6224 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Polytronics Technology Business Description

Address No. 24-1 Industry E. Road. IV, Hsinchu Science Park, Hsinchu, TWN, 300
Polytronics Technology Corp, along with its subsidiaries, is a company that specializes in the research, development, manufacturing, and sale of polymeric positive temperature coefficient thermistors and overvoltage protection elements, as well as production-related semi-finished goods, modules, heat conductive substrates, thermal modules, heat dispersing materials, light emitting diode lighting, and modules. Geographically, the company operates in Taiwan, China (including Hong Kong) and America, and Others, of which it derives maximum revenue from China.
80GF Score

Get the complete analysis for TPE:6224

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

NT$70.20
Price
NT$56.62
GF Value