Primax Electronics (TPE:4915) E10: NT$5.85 (As of Dec. 2025)


TPE:4915 Primax Electronics Ltd TPE:4915
83 GF Score
Price NT$65.00
GF Value NT$81.09
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Primax Electronics E10?

Primax Electronics TPE:4915 -11.56% 83 E10 is NT$5.85 as of Dec. 2025. GuruFocus rates TPE:4915 with a GF Score™ of 83/100 and a GF Value™ of NT$81.09 (Modestly Undervalued). The stock has 4 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.

Primax Electronics's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.930. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$5.85 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Primax Electronics's average E10 Growth Rate was 3.00% per year. During the past 3 years, the average E10 Growth Rate was 5.90% per year. During the past 5 years, the average E10 Growth Rate was 8.50% 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 Primax Electronics was 11.50% per year. The lowest was 5.90% per year. And the median was 8.90% per year.

As of today (2026-06-29), Primax Electronics's current stock price is NT$65.00. Primax Electronics's E10 for the quarter that ended in Dec. 2025 was NT$5.85. Primax Electronics's Shiller PE Ratio of today is 11.11.

During the past 13 years, the highest Shiller PE Ratio of Primax Electronics was 19.78. The lowest was 10.47. And the median was 12.92.


Primax Electronics  (TPE:4915) 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.

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

Shiller PE Ratio=Share Price/E10
=65.00/5.85
=11.11

* 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 Primax Electronics was 19.78. The lowest was 10.47. And the median was 12.92.


Be Aware

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


Primax Electronics E10 Related Terms


Primax Electronics E10 Historical Data

* Premium members only.

The historical data trend for Primax 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.

Primax Electronics E10 Chart

Primax 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 4.40 4.92 5.44 5.68 5.85

Primax Electronics 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 5.68 5.80 5.89 5.92 5.85

TPE:4915 vs AAPL: E10 Comparison

For the Consumer Electronics subindustry, Primax 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.


Primax Electronics Shiller PE Ratio vs Hardware Industry

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

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


TPE:4915
83GF Score
Primax Electronics Ltd TPE:4915
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Primax 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, Primax Electronics'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)
=0.93/324.0540*324.0540
=0.930

Current CPI (Dec. 2025) = 324.0540.

Primax Electronics Quarterly Data

per share eps CPI Adj_EPS
201603 0.910 238.132 1.238
201606 1.010 241.018 1.358
201609 1.270 241.428 1.705
201612 1.180 241.432 1.584
201703 0.940 243.801 1.249
201706 1.040 244.955 1.376
201709 1.390 246.819 1.825
201712 1.260 246.524 1.656
201803 0.790 249.554 1.026
201806 0.760 251.989 0.977
201809 1.490 252.439 1.913
201812 1.050 251.233 1.354
201903 0.800 254.202 1.020
201906 0.930 256.143 1.177
201909 1.710 256.759 2.158
201912 1.340 256.974 1.690
202003 0.610 258.115 0.766
202006 1.130 257.797 1.420
202009 1.730 260.280 2.154
202012 0.810 260.474 1.008
202103 1.120 264.877 1.370
202106 1.360 271.696 1.622
202109 1.490 274.310 1.760
202112 1.130 278.802 1.313
202203 1.220 287.504 1.375
202206 1.570 296.311 1.717
202209 1.930 296.808 2.107
202212 1.300 296.797 1.419
202303 1.220 301.836 1.310
202306 1.540 305.109 1.636
202309 1.610 307.789 1.695
202312 1.070 306.746 1.130
202403 1.260 312.332 1.307
202406 1.580 314.175 1.630
202409 1.670 315.301 1.716
202412 1.020 315.605 1.047
202503 1.600 319.799 1.621
202506 1.580 322.561 1.587
202509 1.530 324.800 1.526
202512 0.930 324.054 0.930

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$5.85 mean?
Primax Electronics (TPE:4915) has a E10 of NT$5.85 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Primax Electronics and its competitors.
Is Primax Electronics' E10 too high?
Primax Electronics' current E10 is NT$5.85. Overall, Primax Electronics has a GF Score™ of 83/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Primax Electronics' E10 compare to AAPL?
Primax Electronics' E10 of NT$5.85 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 Primax Electronics and its competitors. Primax Electronics's current E10 is NT$5.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Primax Electronics stock overvalued right now?
Based on GuruFocus' analysis, Primax Electronics (TPE:4915) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$81.09, compared to a current price of NT$65.00 — trading 19.8% below its estimated fair value. The current E10 is NT$5.85. Primax Electronics' overall GF Score™ is 83/100 with 4 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 Primax Electronics (TPE:4915), the current E10 is NT$5.85 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 Primax Electronics (TPE:4915) Overvalued in 2026?

Based on GuruFocus' analysis, Primax Electronics stock appears to be undervalued. The current stock price of NT$65.00 is trading 19.8% below its estimated GF Value™ of NT$81.09. GuruFocus considers Primax Electronics to be Modestly Undervalued.

Key valuation signals for TPE:4915:

  • E10: NT$5.85
  • GF Value™: NT$81.09 vs. price of NT$65.00 (19.8% below fair value)
  • GF Score™: 83/100 with 4 warning signs

No single metric tells the full story. See the TPE:4915 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Primax Electronics Business Description

Address No. 669, Ruey Kuang Road, Neihu District, Taipei, TWN, 11492
Primax Electronics Ltd is a manufacturer of components for mobile devices, personal computer peripherals, business equipment, and the digital home, that operates in two business segments; The division for computer peripherals specializes in the manufacture and sale of computer mice, keyboards, trackpads, etc. The division for non-computer peripherals specializes in the manufacture and sale of digital camera modules, mobile phone accessories, multi-function printers, scanners, shredders, amplifiers, speakers and audio systems, etc. The company derives the maximum of its revenue from the non-computer peripherals segment. Geographically, it derives maximum revenue from China.
83GF Score

Get the complete analysis for TPE:4915

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

NT$65.00
Price
NT$81.09
GF Value