M31 Technology (ROCO:6643) E10: NT$7.58 (As of Dec. 2025)


ROCO:6643 M31 Technology Corp ROCO:6643
86 GF Score
Price NT$511.00
GF Value NT$890.92
Valuation Significantly Undervalued
! 3 Warning Signs
View Full Analysis

What is M31 Technology E10?

M31 Technology ROCO:6643 +2.51% 86 E10 is NT$7.58 as of Dec. 2025. GuruFocus rates ROCO:6643 with a GF Score™ of 86/100 and a GF Value™ of NT$890.92 (Significantly Undervalued). 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.

M31 Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$2.380. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$7.58 for the trailing ten years ended in Dec. 2025.

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.

As of today (2026-07-05), M31 Technology's current stock price is NT$511.00. M31 Technology's E10 for the quarter that ended in Dec. 2025 was NT$7.58. M31 Technology's Shiller PE Ratio of today is 67.41.

During the past 13 years, the highest Shiller PE Ratio of M31 Technology was 81.93. The lowest was 51.65. And the median was 62.27.


M31 Technology  (ROCO:6643) 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.

M31 Technology's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=511.00/7.58
=67.41

* 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 M31 Technology was 81.93. The lowest was 51.65. And the median was 62.27.


Be Aware

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


M31 Technology E10 Related Terms


M31 Technology E10 Historical Data

* Premium members only.

The historical data trend for M31 Technology'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.

M31 Technology E10 Chart

M31 Technology 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 0.00 0.00 0.00 0.00 7.58

M31 Technology 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 0.00 0.00 0.00 0.00 7.58

ROCO:6643 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, M31 Technology'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.


M31 Technology Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, M31 Technology's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where M31 Technology's Shiller PE Ratio falls into.


ROCO:6643
86GF Score
M31 Technology Corp ROCO:6643
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

M31 Technology 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, M31 Technology'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)
=2.38/324.0540*324.0540
=2.380

Current CPI (Dec. 2025) = 324.0540.

M31 Technology Quarterly Data

per share eps CPI Adj_EPS
201312 0.000 233.049 0.000
201412 0.000 234.812 0.000
201512 0.000 236.525 0.000
201612 0.000 241.432 0.000
201703 -0.833 243.801 -1.107
201706 1.303 244.955 1.724
201709 2.273 246.819 2.984
201712 2.182 246.524 2.868
201803 0.712 249.554 0.925
201806 1.144 251.989 1.471
201809 2.682 252.439 3.443
201812 2.864 251.233 3.694
201903 1.167 254.202 1.488
201906 1.311 256.143 1.659
201909 2.818 256.759 3.557
201912 2.189 256.974 2.760
202003 1.439 258.115 1.807
202006 1.568 257.797 1.971
202009 1.992 260.280 2.480
202012 2.833 260.474 3.525
202103 1.356 264.877 1.659
202106 1.030 271.696 1.228
202109 0.803 274.310 0.949
202112 2.954 278.802 3.433
202203 0.970 287.504 1.093
202206 1.811 296.311 1.981
202209 2.450 296.808 2.675
202212 3.742 296.797 4.086
202303 1.675 301.836 1.798
202306 2.360 305.109 2.507
202309 3.670 307.789 3.864
202312 2.700 306.746 2.852
202403 1.010 312.332 1.048
202406 2.630 314.175 2.713
202409 0.670 315.301 0.689
202412 -1.280 315.605 -1.314
202503 0.470 319.799 0.476
202506 -0.980 322.561 -0.985
202509 -0.180 324.800 -0.180
202512 2.380 324.054 2.380

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$7.58 mean?
M31 Technology (ROCO:6643) has a E10 of NT$7.58 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on M31 Technology and its competitors.
Is M31 Technology's E10 too high?
M31 Technology's current E10 is NT$7.58. Overall, M31 Technology has a GF Score™ of 86/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does M31 Technology's E10 compare to NVDA and AVGO?
M31 Technology's E10 of NT$7.58 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 M31 Technology and its competitors. M31 Technology's current E10 is NT$7.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is M31 Technology stock overvalued right now?
Based on GuruFocus' analysis, M31 Technology (ROCO:6643) is currently considered Significantly Undervalued. The stock's GF Value™ is NT$890.92, compared to a current price of NT$511.00 — trading 42.6% below its estimated fair value. The current E10 is NT$7.58. M31 Technology's overall GF Score™ is 86/100 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 M31 Technology (ROCO:6643), the current E10 is NT$7.58 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 M31 Technology (ROCO:6643) Overvalued in 2026?

Based on GuruFocus' analysis, M31 Technology stock appears to be undervalued. The current stock price of NT$511.00 is trading 42.6% below its estimated GF Value™ of NT$890.92. GuruFocus considers M31 Technology to be Significantly Undervalued.

Key valuation signals for ROCO:6643:

  • E10: NT$7.58
  • GF Value™: NT$890.92 vs. price of NT$511.00 (42.6% below fair value)
  • GF Score™: 86/100 with 3 warning signs

No single metric tells the full story. See the ROCO:6643 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


M31 Technology Business Description

Address No.8, Taiyuan 2nd Street, 9th Floor, Hsinchu County, Zhubei, TWN, 302
M31 Technology Corp is a professional silicon intellectual property (IP) provider. The company focuses on providing high-speed interface IPs, memory compilers, and standard cell library solutions. The company provides customers with differentiated IP solutions. These solutions help customers grasp market opportunities in short design cycles, low manufacturing costs, and high product competitiveness.
86GF Score

Get the complete analysis for ROCO:6643

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

NT$511.00
Price
NT$890.92
GF Value