Bestec Power Electronics Co (TPE:3308) E10: NT$-0.11 (As of Dec. 2025)


TPE:3308 Bestec Power Electronics Co Ltd TPE:3308
38 GF Score
Price NT$22.65
GF Value NT$0.78
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Bestec Power Electronics Co E10?

Bestec Power Electronics Co TPE:3308 38 E10 is NT$-0.11 as of Dec. 2025. GuruFocus rates TPE:3308 with a GF Score™ of 38/100 and a GF Value™ of NT$0.78 (Significantly Overvalued). The stock has 7 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.

Bestec Power Electronics Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.450. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.11 for the trailing ten years ended in Dec. 2025.

During the past 3 years, the average E10 Growth Rate was 54.30% per year. During the past 5 years, the average E10 Growth Rate was 42.30% 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 Bestec Power Electronics Co was 54.30% per year. The lowest was 3.30% per year. And the median was 41.40% per year.

As of today (2026-07-06), Bestec Power Electronics Co's current stock price is NT$22.65. Bestec Power Electronics Co's E10 for the quarter that ended in Dec. 2025 was NT$-0.11. Bestec Power Electronics Co's Shiller PE Ratio of today is .


Bestec Power Electronics Co  (TPE:3308) 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.


Be Aware

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


Bestec Power Electronics Co E10 Related Terms


Bestec Power Electronics Co E10 Historical Data

* Premium members only.

The historical data trend for Bestec Power Electronics 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.

Bestec Power Electronics Co E10 Chart

Bestec Power Electronics 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 -1.18 -1.15 -0.34 -0.18 -0.11

Bestec Power Electronics 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 -0.18 -0.09 -0.21 -0.21 -0.11

TPE:3308 vs VRT, BE: E10 Comparison

For the Electrical Equipment & Parts subindustry, Bestec Power Electronics 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.


Bestec Power Electronics Co Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Bestec Power Electronics Co's Shiller PE Ratio distribution charts can be found below:

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


TPE:3308
38GF Score
Bestec Power Electronics Co Ltd TPE:3308
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Bestec Power Electronics 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, Bestec Power Electronics 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)
=0.45/324.0540*324.0540
=0.450

Current CPI (Dec. 2025) = 324.0540.

Bestec Power Electronics Co Quarterly Data

per share eps CPI Adj_EPS
201603 0.577 238.132 0.785
201606 -0.132 241.018 -0.177
201609 -0.659 241.428 -0.885
201612 -0.115 241.432 -0.154
201703 -0.511 243.801 -0.679
201706 -0.132 244.955 -0.175
201709 0.082 246.819 0.108
201712 -0.395 246.524 -0.519
201803 -0.478 249.554 -0.621
201806 -0.741 251.989 -0.953
201809 -0.824 252.439 -1.058
201812 -0.544 251.233 -0.702
201903 -0.692 254.202 -0.882
201906 -0.181 256.143 -0.229
201909 -0.198 256.759 -0.250
201912 -0.511 256.974 -0.644
202003 -0.395 258.115 -0.496
202006 -0.005 257.797 -0.006
202009 -0.412 260.280 -0.513
202012 -0.637 260.474 -0.792
202103 0.059 264.877 0.072
202106 -0.495 271.696 -0.590
202109 -0.059 274.310 -0.070
202112 0.047 278.802 0.055
202203 -0.342 287.504 -0.385
202206 -0.141 296.311 -0.154
202209 0.306 296.808 0.334
202212 0.504 296.797 0.550
202303 5.110 301.836 5.486
202306 0.850 305.109 0.903
202309 0.770 307.789 0.811
202312 -0.950 306.746 -1.004
202403 0.130 312.332 0.135
202406 0.050 314.175 0.052
202409 0.540 315.301 0.555
202412 0.260 315.605 0.267
202503 0.580 319.799 0.588
202506 -0.970 322.561 -0.974
202509 0.620 324.800 0.619
202512 0.450 324.054 0.450

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$-0.11 mean?
Bestec Power Electronics Co (TPE:3308) has a E10 of NT$-0.11 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Bestec Power Electronics Co and its competitors.
Is Bestec Power Electronics Co's E10 too high?
Bestec Power Electronics Co's current E10 is NT$-0.11. Overall, Bestec Power Electronics Co has a GF Score™ of 38/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Bestec Power Electronics Co's E10 compare to VRT and BE?
Bestec Power Electronics Co's E10 of NT$-0.11 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good E10 depends on the Industrial Products 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 Bestec Power Electronics Co and its competitors. Bestec Power Electronics Co's current E10 is NT$-0.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bestec Power Electronics Co stock overvalued right now?
Based on GuruFocus' analysis, Bestec Power Electronics Co (TPE:3308) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$0.78, compared to a current price of NT$22.65 — trading 2803.8% above its estimated fair value. The current E10 is NT$-0.11. Bestec Power Electronics Co's overall GF Score™ is 38/100 with 7 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 Bestec Power Electronics Co (TPE:3308), the current E10 is NT$-0.11 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 Bestec Power Electronics Co (TPE:3308) Overvalued in 2026?

Based on GuruFocus' analysis, Bestec Power Electronics Co stock appears to be overvalued. The current stock price of NT$22.65 is trading 2803.8% above its estimated GF Value™ of NT$0.78. GuruFocus considers Bestec Power Electronics Co to be Significantly Overvalued.

Key valuation signals for TPE:3308:

  • E10: NT$-0.11
  • GF Value™: NT$0.78 vs. price of NT$22.65 (2803.8% above fair value)
  • GF Score™: 38/100 with 7 warning signs

No single metric tells the full story. See the TPE:3308 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Bestec Power Electronics Co Business Description

Address No.69 Keji 1st Road, Guishan District, Taoyuan, TWN, 333
Bestec Power Electronics Co Ltd is engaged in processing, manufacturing, and trading of products such as switching power supplies, IoT cloud server power supplies, wireless chargers, high-power, high-efficiency, high-density power supplies for gaming, and power converters. Its products include gogi Pet Soothing Water, Liande Bio-Extreme Water, drones, Power supply, Uninterruptible power supply system, charger, adapter, and Open Frame. Its segments include Product segment engaged in the production and domestic sales of power supplies, power converters, and bottled water, among others; and Other segment engaged in hotel operations or leasing activities. It derives the majority of revenue from Other segment.
38GF Score

Get the complete analysis for TPE:3308

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

NT$22.65
Price
NT$0.78
GF Value