Excelliance Mos (ROCO:5299) E10: NT$9.69 (As of Mar. 2026)


ROCO:5299 Excelliance Mos Corp ROCO:5299
63 GF Score
Price NT$118.00
GF Value NT$73.89
Valuation Significantly Overvalued
! 9 Warning Signs
View Full Analysis

What is Excelliance Mos E10?

Excelliance Mos ROCO:5299 63 E10 is NT$9.69 as of Mar. 2026. GuruFocus rates ROCO:5299 with a GF Score™ of 63/100 and a GF Value™ of NT$73.89 (Significantly Overvalued). The stock has 9 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.

Excelliance Mos's adjusted earnings per share data for the three months ended in Mar. 2026 was NT$1.650. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$9.69 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Excelliance Mos's average E10 Growth Rate was -2.30% 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.

As of today (2026-07-12), Excelliance Mos's current stock price is NT$118.00. Excelliance Mos's E10 for the quarter that ended in Mar. 2026 was NT$9.69. Excelliance Mos's Shiller PE Ratio of today is 12.18.

During the past 13 years, the highest Shiller PE Ratio of Excelliance Mos was 13.31. The lowest was 7.18. And the median was 9.18.


Excelliance Mos  (ROCO:5299) 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.

Excelliance Mos's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=118.00/9.69
=12.18

* 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 Excelliance Mos was 13.31. The lowest was 7.18. And the median was 9.18.


Be Aware

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


Excelliance Mos E10 Related Terms


Excelliance Mos E10 Historical Data

* Premium members only.

The historical data trend for Excelliance Mos'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.

Excelliance Mos E10 Chart

Excelliance Mos 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 10.16 9.92 9.59

Excelliance Mos 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 9.92 9.71 9.74 9.59 9.69

ROCO:5299 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, Excelliance Mos'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.


Excelliance Mos Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where Excelliance Mos's Shiller PE Ratio falls into.


ROCO:5299
63GF Score
Excelliance Mos Corp ROCO:5299
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Excelliance Mos 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, Excelliance Mos'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)
=1.65/330.2130*330.2130
=1.650

Current CPI (Mar. 2026) = 330.2130.

Excelliance Mos Quarterly Data

per share eps CPI Adj_EPS
201606 0.000 241.018 0.000
201609 0.490 241.428 0.670
201612 0.420 241.432 0.574
201703 0.260 243.801 0.352
201706 0.850 244.955 1.146
201709 1.580 246.819 2.114
201712 1.170 246.524 1.567
201803 1.320 249.554 1.747
201806 1.890 251.989 2.477
201809 2.020 252.439 2.642
201812 2.010 251.233 2.642
201903 1.940 254.202 2.520
201906 2.040 256.143 2.630
201909 2.150 256.759 2.765
201912 1.700 256.974 2.185
202003 1.760 258.115 2.252
202006 2.440 257.797 3.125
202009 2.310 260.280 2.931
202012 2.620 260.474 3.321
202103 3.110 264.877 3.877
202106 4.700 271.696 5.712
202109 5.400 274.310 6.500
202112 4.220 278.802 4.998
202203 5.490 287.504 6.306
202206 4.930 296.311 5.494
202209 4.070 296.808 4.528
202212 1.260 296.797 1.402
202303 1.240 301.836 1.357
202306 2.100 305.109 2.273
202309 1.720 307.789 1.845
202312 0.060 306.746 0.065
202403 2.260 312.332 2.389
202406 1.760 314.175 1.850
202409 0.750 315.301 0.785
202412 1.120 315.605 1.172
202503 1.390 319.799 1.435
202506 -0.150 322.561 -0.154
202509 2.050 324.800 2.084
202512 1.260 324.054 1.284
202603 1.650 330.213 1.650

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$9.69 mean?
Excelliance Mos (ROCO:5299) has a E10 of NT$9.69 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Excelliance Mos and its competitors.
Is Excelliance Mos' E10 too high?
Excelliance Mos' current E10 is NT$9.69. Overall, Excelliance Mos has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Excelliance Mos' E10 compare to NVDA and AVGO?
Excelliance Mos' E10 of NT$9.69 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 Excelliance Mos and its competitors. Excelliance Mos's current E10 is NT$9.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Excelliance Mos stock overvalued right now?
Based on GuruFocus' analysis, Excelliance Mos (ROCO:5299) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$73.89, compared to a current price of NT$118.00 — trading 59.7% above its estimated fair value. The current E10 is NT$9.69. Excelliance Mos' overall GF Score™ is 63/100 with 9 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 Excelliance Mos (ROCO:5299), the current E10 is NT$9.69 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 Excelliance Mos (ROCO:5299) Overvalued in 2026?

Based on GuruFocus' analysis, Excelliance Mos stock appears to be overvalued. The current stock price of NT$118.00 is trading 59.7% above its estimated GF Value™ of NT$73.89. GuruFocus considers Excelliance Mos to be Significantly Overvalued.

Key valuation signals for ROCO:5299:

  • E10: NT$9.69
  • GF Value™: NT$73.89 vs. price of NT$118.00 (59.7% above fair value)
  • GF Score™: 63/100 with 9 warning signs

No single metric tells the full story. See the ROCO:5299 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Excelliance Mos Business Description

Address Taiyuan Street, No. 22, 4th Floor - 1, Hsinchu County, Jhubei, TWN, 302082
Excelliance Mos Corp is a power device and IC design company specializing in power semiconductor process development, high-efficiency power devices, integrated circuits, and system design, empowered by its vertically integrated capabilities. The company's product portfolio mainly includes Power MOSFETs, AC/DC integrated circuits, and AC/DC controllers. These products are mainly used in laptops, desktops, LCD TVs, monitors, digital cameras, cell phones, and other related products. Geographically, the company generates maximum revenue from Taiwan, and the rest from China and other markets.
63GF Score

Get the complete analysis for ROCO:5299

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

NT$118.00
Price
NT$73.89
GF Value