Nak Sealing Technologies (TPE:9942) E10: NT$8.07 (As of Dec. 2025)


TPE:9942 Nak Sealing Technologies Corp TPE:9942
90 GF Score
Price NT$116.50
GF Value NT$111.81
Valuation Fairly Valued
! 3 Warning Signs
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What is Nak Sealing Technologies E10?

Nak Sealing Technologies TPE:9942 -1.69% 90 E10 is NT$8.07 as of Dec. 2025. GuruFocus rates TPE:9942 with a GF Score™ of 90/100 and a GF Value™ of NT$111.81 (Fairly Valued). The stock has 3 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.

Nak Sealing Technologies's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$2.110. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$8.07 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Nak Sealing Technologies's average E10 Growth Rate was 4.30% per year. During the past 3 years, the average E10 Growth Rate was 5.50% per year. During the past 5 years, the average E10 Growth Rate was 7.10% 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 Nak Sealing Technologies was 9.00% per year. The lowest was 2.10% per year. And the median was 5.50% per year.

As of today (2026-06-29), Nak Sealing Technologies's current stock price is NT$116.50. Nak Sealing Technologies's E10 for the quarter that ended in Dec. 2025 was NT$8.07. Nak Sealing Technologies's Shiller PE Ratio of today is 14.44.

During the past 13 years, the highest Shiller PE Ratio of Nak Sealing Technologies was 22.53. The lowest was 9.15. And the median was 14.44.


Nak Sealing Technologies  (TPE:9942) 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.

Nak Sealing Technologies's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=116.50/8.07
=14.44

* 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 Nak Sealing Technologies was 22.53. The lowest was 9.15. And the median was 14.44.


Be Aware

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


Nak Sealing Technologies E10 Related Terms


Nak Sealing Technologies E10 Historical Data

* Premium members only.

The historical data trend for Nak Sealing Technologies'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.

Nak Sealing Technologies E10 Chart

Nak Sealing Technologies 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 6.25 6.88 7.49 7.74 8.07

Nak Sealing Technologies 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 7.74 7.89 7.96 8.02 8.07

TPE:9942 vs ORLY, AZO: E10 Comparison

For the Auto Parts subindustry, Nak Sealing Technologies'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.


Nak Sealing Technologies Shiller PE Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Nak Sealing Technologies's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Nak Sealing Technologies's Shiller PE Ratio falls into.


TPE:9942
90GF Score
Nak Sealing Technologies Corp TPE:9942
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Nak Sealing Technologies 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, Nak Sealing Technologies'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)
=2.11/324.0540*324.0540
=2.110

Current CPI (Dec. 2025) = 324.0540.

Nak Sealing Technologies Quarterly Data

per share eps CPI Adj_EPS
201603 1.280 238.132 1.742
201606 1.630 241.018 2.192
201609 1.360 241.428 1.825
201612 1.570 241.432 2.107
201703 1.120 243.801 1.489
201706 1.760 244.955 2.328
201709 1.910 246.819 2.508
201712 1.510 246.524 1.985
201803 0.940 249.554 1.221
201806 1.570 251.989 2.019
201809 1.520 252.439 1.951
201812 1.240 251.233 1.599
201903 1.160 254.202 1.479
201906 1.550 256.143 1.961
201909 1.140 256.759 1.439
201912 1.060 256.974 1.337
202003 0.600 258.115 0.753
202006 1.390 257.797 1.747
202009 1.290 260.280 1.606
202012 1.340 260.474 1.667
202103 1.500 264.877 1.835
202106 1.910 271.696 2.278
202109 1.770 274.310 2.091
202112 1.300 278.802 1.511
202203 1.670 287.504 1.882
202206 1.490 296.311 1.630
202209 2.490 296.808 2.719
202212 2.140 296.797 2.337
202303 2.530 301.836 2.716
202306 3.360 305.109 3.569
202309 3.490 307.789 3.674
202312 2.340 306.746 2.472
202403 2.260 312.332 2.345
202406 1.990 314.175 2.053
202409 2.040 315.301 2.097
202412 2.330 315.605 2.392
202503 2.150 319.799 2.179
202506 1.620 322.561 1.627
202509 2.240 324.800 2.235
202512 2.110 324.054 2.110

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$8.07 mean?
Nak Sealing Technologies (TPE:9942) has a E10 of NT$8.07 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Nak Sealing Technologies and its competitors.
Is Nak Sealing Technologies' E10 too high?
Nak Sealing Technologies' current E10 is NT$8.07. Overall, Nak Sealing Technologies has a GF Score™ of 90/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Nak Sealing Technologies' E10 compare to ORLY and AZO?
Nak Sealing Technologies' E10 of NT$8.07 can be compared against companies in the Vehicles & Parts 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 Vehicles & Parts company?
A good E10 depends on the Vehicles & Parts 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 Nak Sealing Technologies and its competitors. Nak Sealing Technologies's current E10 is NT$8.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nak Sealing Technologies stock overvalued right now?
Based on GuruFocus' analysis, Nak Sealing Technologies (TPE:9942) is currently considered Fairly Valued. The stock's GF Value™ is NT$111.81, compared to a current price of NT$116.50 — trading 4.2% above its estimated fair value. The current E10 is NT$8.07. Nak Sealing Technologies' overall GF Score™ is 90/100 with 3 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 Nak Sealing Technologies (TPE:9942), the current E10 is NT$8.07 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 Nak Sealing Technologies (TPE:9942) Overvalued in 2026?

Based on GuruFocus' analysis, Nak Sealing Technologies stock appears to be overvalued. The current stock price of NT$116.50 is trading 4.2% above its estimated GF Value™ of NT$111.81. GuruFocus considers Nak Sealing Technologies to be Fairly Valued.

Key valuation signals for TPE:9942:

  • E10: NT$8.07
  • GF Value™: NT$111.81 vs. price of NT$116.50 (4.2% above fair value)
  • GF Score™: 90/100 with 3 warning signs

No single metric tells the full story. See the TPE:9942 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Nak Sealing Technologies Business Description

Address No 336, Gongye Road, Yongfeng Vil, Nantou County, Nantou, TWN, 540406
Nak Sealing Technologies Corp is mainly engaged in the processing and manufacturing of each kind of oil seal, manufacturing rubber machinery and metal modules, and import and export businesses. Its product offerings include axle seals, transmission seals, motor seals, power steering seals, wind turbine seals, gearbox seals, rubber rings, rubber molded parts, etc. The company's reportable segments are: Taiwan, which generates the maximum revenue, China, and all others. Geographically, it derives maximum revenue from Asia, followed by Europe, America, and Africa.
90GF Score

Get the complete analysis for TPE:9942

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

NT$116.50
Price
NT$111.81
GF Value