Advanced Power Electronics (TPE:8261) E10: NT$4.32 (As of Mar. 2026)


TPE:8261 Advanced Power Electronics Corp TPE:8261
71 GF Score
Price NT$244.00
GF Value NT$95.86
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Advanced Power Electronics E10?

Advanced Power Electronics TPE:8261 -4.50% 71 E10 is NT$4.32 as of Mar. 2026. GuruFocus rates TPE:8261 with a GF Score™ of 71/100 and a GF Value™ of NT$95.86 (Significantly 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.

Advanced Power Electronics's adjusted earnings per share data for the three months ended in Mar. 2026 was NT$1.560. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$4.32 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Advanced Power Electronics's average E10 Growth Rate was 17.10% per year. During the past 3 years, the average E10 Growth Rate was 17.00% per year. During the past 5 years, the average E10 Growth Rate was 77.30% 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 Advanced Power Electronics was 175.90% per year. The lowest was 17.00% per year. And the median was 107.10% per year.

As of today (2026-06-27), Advanced Power Electronics's current stock price is NT$244.00. Advanced Power Electronics's E10 for the quarter that ended in Mar. 2026 was NT$4.32. Advanced Power Electronics's Shiller PE Ratio of today is 56.48.

During the past 13 years, the highest Shiller PE Ratio of Advanced Power Electronics was 484.17. The lowest was 17.91. And the median was 39.78.


Advanced Power Electronics  (TPE:8261) 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.

Advanced Power Electronics's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=244.00/4.32
=56.48

* 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 Advanced Power Electronics was 484.17. The lowest was 17.91. And the median was 39.78.


Be Aware

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


Advanced Power Electronics E10 Related Terms


Advanced Power Electronics E10 Historical Data

* Premium members only.

The historical data trend for Advanced Power Electronics'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.

Advanced Power Electronics E10 Chart

Advanced Power Electronics 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 2.56 3.15 3.54 4.10

Advanced Power Electronics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 3.69 3.77 3.95 4.10 4.32

TPE:8261 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, Advanced Power Electronics'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.


Advanced Power Electronics Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Advanced Power Electronics's Shiller PE Ratio distribution charts can be found below:

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


TPE:8261
71GF Score
Advanced Power Electronics Corp TPE:8261
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Advanced Power Electronics 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, Advanced Power Electronics's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=1.56/330.2130*330.2130
=1.560

Current CPI (Mar. 2026) = 330.2130.

Advanced Power Electronics Quarterly Data

per share eps CPI Adj_EPS
201606 0.650 241.018 0.891
201609 0.090 241.428 0.123
201612 0.040 241.432 0.055
201703 -0.270 243.801 -0.366
201706 0.120 244.955 0.162
201709 0.290 246.819 0.388
201712 0.340 246.524 0.455
201803 0.180 249.554 0.238
201806 0.730 251.989 0.957
201809 0.660 252.439 0.863
201812 0.460 251.233 0.605
201903 0.230 254.202 0.299
201906 0.120 256.143 0.155
201909 0.220 256.759 0.283
201912 0.100 256.974 0.129
202003 0.290 258.115 0.371
202006 0.570 257.797 0.730
202009 0.670 260.280 0.850
202012 0.890 260.474 1.128
202103 1.390 264.877 1.733
202106 1.700 271.696 2.066
202109 2.320 274.310 2.793
202112 2.470 278.802 2.925
202203 3.440 287.504 3.951
202206 3.030 296.311 3.377
202209 2.020 296.808 2.247
202212 0.410 296.797 0.456
202303 0.480 301.836 0.525
202306 0.580 305.109 0.628
202309 1.140 307.789 1.223
202312 0.570 306.746 0.614
202403 0.730 312.332 0.772
202406 1.140 314.175 1.198
202409 1.300 315.301 1.361
202412 1.580 315.605 1.653
202503 1.440 319.799 1.487
202506 0.670 322.561 0.686
202509 1.920 324.800 1.952
202512 1.670 324.054 1.702
202603 1.560 330.213 1.560

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$4.32 mean?
Advanced Power Electronics (TPE:8261) has a E10 of NT$4.32 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Advanced Power Electronics and its competitors.
Is Advanced Power Electronics' E10 too high?
Advanced Power Electronics' current E10 is NT$4.32. Overall, Advanced Power Electronics has a GF Score™ of 71/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Advanced Power Electronics' E10 compare to NVDA and AVGO?
Advanced Power Electronics' E10 of NT$4.32 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good E10 depends on the Semiconductors 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 Advanced Power Electronics and its competitors. Advanced Power Electronics's current E10 is NT$4.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Advanced Power Electronics stock overvalued right now?
Based on GuruFocus' analysis, Advanced Power Electronics (TPE:8261) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$95.86, compared to a current price of NT$244.00 — trading 154.5% above its estimated fair value. The current E10 is NT$4.32. Advanced Power Electronics' overall GF Score™ is 71/100 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 Advanced Power Electronics (TPE:8261), the current E10 is NT$4.32 as of Mar. 2026. 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 Advanced Power Electronics (TPE:8261) Overvalued in 2026?

Based on GuruFocus' analysis, Advanced Power Electronics stock appears to be overvalued. The current stock price of NT$244.00 is trading 154.5% above its estimated GF Value™ of NT$95.86. GuruFocus considers Advanced Power Electronics to be Significantly Overvalued.

Key valuation signals for TPE:8261:

  • E10: NT$4.32
  • GF Value™: NT$95.86 vs. price of NT$244.00 (154.5% above fair value)
  • GF Score™: 71/100 with 6 warning signs

No single metric tells the full story. See the TPE:8261 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Advanced Power Electronics Business Description

Address 12th Floor-1 and 12th Floor-2, Number 5, Taiyuan 1st Street, Hsinchu County, Zhubei City, TWN, 30265
Advanced Power Electronics Corp, formerly Advance Power Electronics Co Ltd provides total solutions for new power requirements in MOSFETs, and IGBTs in Taiwan. It is mainly engaged in mainly deals with the design, testing, and trading, among others, of electronic elements, such as integrated circuits and semi-conductors. Geographically, the company operates in Taiwan, China and Others, of which it derives maximum revenue from Taiwan. The products of the company include: Power Mosfets; Super Junction; and Automotive. The company's products are broadly applied in the computing, consumer electronics, display, communications and industrial segments.
71GF Score

Get the complete analysis for TPE:8261

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

NT$244.00
Price
NT$95.86
GF Value