Realtek Semiconductor (TPE:2379) E10: NT$21.62 (As of Dec. 2025)


TPE:2379 Realtek Semiconductor Corp TPE:2379
92 GF Score
Price NT$740.00
GF Value NT$569.38
Valuation Modestly Overvalued
! 7 Warning Signs
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What is Realtek Semiconductor E10?

Realtek Semiconductor TPE:2379 -9.09% 92 E10 is NT$21.62 as of Dec. 2025. GuruFocus rates TPE:2379 with a GF Score™ of 92/100 and a GF Value™ of NT$569.38 (Modestly 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.

Realtek Semiconductor's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$4.840. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$21.62 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Realtek Semiconductor's average E10 Growth Rate was 14.30% per year. During the past 3 years, the average E10 Growth Rate was 13.00% per year. During the past 5 years, the average E10 Growth Rate was 20.20% 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 Realtek Semiconductor was 30.70% per year. The lowest was 13.00% per year. And the median was 25.80% per year.

As of today (2026-06-28), Realtek Semiconductor's current stock price is NT$740.00. Realtek Semiconductor's E10 for the quarter that ended in Dec. 2025 was NT$21.62. Realtek Semiconductor's Shiller PE Ratio of today is 34.23.

During the past 13 years, the highest Shiller PE Ratio of Realtek Semiconductor was 62.16. The lowest was 16.75. And the median was 29.97.


Realtek Semiconductor  (TPE:2379) 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.

Realtek Semiconductor's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=740.00/21.62
=34.23

* 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 Realtek Semiconductor was 62.16. The lowest was 16.75. And the median was 29.97.


Be Aware

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


Realtek Semiconductor E10 Related Terms


Realtek Semiconductor E10 Historical Data

* Premium members only.

The historical data trend for Realtek Semiconductor'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.

Realtek Semiconductor E10 Chart

Realtek Semiconductor 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 11.64 14.97 16.46 18.91 21.62

Realtek Semiconductor 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 18.91 19.88 20.72 21.38 21.62

TPE:2379 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, Realtek Semiconductor'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.


Realtek Semiconductor Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where Realtek Semiconductor's Shiller PE Ratio falls into.


TPE:2379
92GF Score
Realtek Semiconductor Corp TPE:2379
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Realtek Semiconductor 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, Realtek Semiconductor'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)
=4.84/324.0540*324.0540
=4.840

Current CPI (Dec. 2025) = 324.0540.

Realtek Semiconductor Quarterly Data

per share eps CPI Adj_EPS
201603 1.150 238.132 1.565
201606 1.980 241.018 2.662
201609 1.470 241.428 1.973
201612 1.320 241.432 1.772
201703 0.990 243.801 1.316
201706 1.840 244.955 2.434
201709 2.270 246.819 2.980
201712 1.530 246.524 2.011
201803 1.630 249.554 2.117
201806 1.960 251.989 2.521
201809 2.760 252.439 3.543
201812 2.100 251.233 2.709
201903 2.670 254.202 3.404
201906 3.620 256.143 4.580
201909 3.770 256.759 4.758
201912 3.120 256.974 3.934
202003 3.180 258.115 3.992
202006 3.950 257.797 4.965
202009 4.890 260.280 6.088
202012 5.040 260.474 6.270
202103 5.910 264.877 7.230
202106 8.390 271.696 10.007
202109 9.520 274.310 11.246
202112 8.810 278.802 10.240
202203 9.900 287.504 11.159
202206 9.050 296.311 9.897
202209 8.130 296.808 8.876
202212 3.960 296.797 4.324
202303 3.440 301.836 3.693
202306 5.060 305.109 5.374
202309 5.000 307.789 5.264
202312 4.190 306.746 4.426
202403 6.050 312.332 6.277
202406 8.510 314.175 8.778
202409 8.490 315.301 8.726
202412 6.510 315.605 6.684
202503 9.140 319.799 9.262
202506 7.590 322.561 7.625
202509 6.660 324.800 6.645
202512 4.840 324.054 4.840

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$21.62 mean?
Realtek Semiconductor (TPE:2379) has a E10 of NT$21.62 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Realtek Semiconductor and its competitors.
Is Realtek Semiconductor's E10 too high?
Realtek Semiconductor's current E10 is NT$21.62. Overall, Realtek Semiconductor has a GF Score™ of 92/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Realtek Semiconductor's E10 compare to NVDA and AVGO?
Realtek Semiconductor's E10 of NT$21.62 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 Realtek Semiconductor and its competitors. Realtek Semiconductor's current E10 is NT$21.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Realtek Semiconductor stock overvalued right now?
Based on GuruFocus' analysis, Realtek Semiconductor (TPE:2379) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$569.38, compared to a current price of NT$740.00 — trading 30% above its estimated fair value. The current E10 is NT$21.62. Realtek Semiconductor's overall GF Score™ is 92/100 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 Realtek Semiconductor (TPE:2379), the current E10 is NT$21.62 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 Realtek Semiconductor (TPE:2379) Overvalued in 2026?

Based on GuruFocus' analysis, Realtek Semiconductor stock appears to be overvalued. The current stock price of NT$740.00 is trading 30% above its estimated GF Value™ of NT$569.38. GuruFocus considers Realtek Semiconductor to be Modestly Overvalued.

Key valuation signals for TPE:2379:

  • E10: NT$21.62
  • GF Value™: NT$569.38 vs. price of NT$740.00 (30% above fair value)
  • GF Score™: 92/100 with 7 warning signs

No single metric tells the full story. See the TPE:2379 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Realtek Semiconductor Business Description

Address No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu, TWN, 300
Realtek Semiconductor Corp is engaged in researching, developing, manufacturing, and selling various integrated circuits and related application software. The products of the company include Connected Media ICs, Communications Network ICs, Computer Peripheral ICs, Multimedia ICs, Smart Interconnect ICs and others. The company derives maximum revenue from the Asian region followed by Taiwan.
92GF Score

Get the complete analysis for TPE:2379

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

NT$740.00
Price
NT$569.38
GF Value