ADO Optronic (ROCO:3516) E10: NT$-0.16 (As of Dec. 2025)

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ROCO:3516 ADO Optronic Corp ROCO:3516
62 GF Score
Price NT$25.95
GF Value NT$18.29
Valuation Significantly Overvalued
! 10 Warning Signs
View Full Analysis

What is ADO Optronic E10?

ADO Optronic ROCO:3516 +4.85% 62 E10 is NT$-0.16 as of Dec. 2025. GuruFocus rates ROCO:3516 with a GF Score™ of 62/100 and a GF Value™ of NT$18.29 (Significantly Overvalued). The stock has 10 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.

ADO Optronic's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.240. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.16 for the trailing ten years ended in Dec. 2025.

During the past 3 years, the average E10 Growth Rate was 42.50% per year. During the past 5 years, the average E10 Growth Rate was 37.90% 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 ADO Optronic was 42.50% per year. The lowest was 21.40% per year. And the median was 34.10% per year.

As of today (2026-07-16), ADO Optronic's current stock price is NT$25.95. ADO Optronic's E10 for the quarter that ended in Dec. 2025 was NT$-0.16. ADO Optronic's Shiller PE Ratio of today is .


ADO Optronic  (ROCO:3516) 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.


Be Aware

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


ADO Optronic E10 Related Terms


ADO Optronic E10 Historical Data

* Premium members only.

The historical data trend for ADO Optronic'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.

ADO Optronic E10 Chart

ADO Optronic 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 -1.34 -0.84 -0.64 -0.27 -0.16

ADO Optronic 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 -0.27 -0.24 -0.17 -0.30 -0.16

ROCO:3516 vs SN, SGI, MHK: E10 Comparison

For the Furnishings, Fixtures & Appliances subindustry, ADO Optronic'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.


ADO Optronic Shiller PE Ratio vs Furnishings, Fixtures & Appliances Industry

For the Furnishings, Fixtures & Appliances industry and Consumer Cyclical sector, ADO Optronic's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where ADO Optronic's Shiller PE Ratio falls into.


ROCO:3516
62GF Score
ADO Optronic Corp ROCO:3516
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ADO Optronic 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, ADO Optronic'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)
=0.24/324.0540*324.0540
=0.240

Current CPI (Dec. 2025) = 324.0540.

ADO Optronic Quarterly Data

per share eps CPI Adj_EPS
201603 -0.167 238.132 -0.227
201606 -0.242 241.018 -0.325
201609 -0.353 241.428 -0.474
201612 -2.269 241.432 -3.045
201703 0.102 243.801 0.136
201706 0.000 244.955 0.000
201709 0.149 246.819 0.196
201712 -0.028 246.524 -0.037
201803 -0.279 249.554 -0.362
201806 -0.586 251.989 -0.754
201809 0.074 252.439 0.095
201812 -0.186 251.233 -0.240
201903 -0.112 254.202 -0.143
201906 -0.139 256.143 -0.176
201909 0.335 256.759 0.423
201912 -0.046 256.974 -0.058
202003 -0.084 258.115 -0.105
202006 0.911 257.797 1.145
202009 0.056 260.280 0.070
202012 -0.558 260.474 -0.694
202103 -0.102 264.877 -0.125
202106 0.298 271.696 0.355
202109 0.372 274.310 0.439
202112 0.232 278.802 0.270
202203 0.260 287.504 0.293
202206 0.093 296.311 0.102
202209 0.193 296.808 0.211
202212 0.464 296.797 0.507
202303 0.029 301.836 0.031
202306 0.135 305.109 0.143
202309 0.118 307.789 0.124
202312 -0.006 306.746 -0.006
202403 0.080 312.332 0.083
202406 0.050 314.175 0.052
202409 0.120 315.301 0.123
202412 0.100 315.605 0.103
202503 0.060 319.799 0.061
202506 -0.040 322.561 -0.040
202509 0.003 324.800 0.003
202512 0.240 324.054 0.240

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$-0.16 mean?
ADO Optronic (ROCO:3516) has a E10 of NT$-0.16 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on ADO Optronic and its competitors.
Is ADO Optronic's E10 too high?
ADO Optronic's current E10 is NT$-0.16. Overall, ADO Optronic has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does ADO Optronic's E10 compare to SN and SGI?
ADO Optronic's E10 of NT$-0.16 can be compared against companies in the Furnishings, Fixtures & Appliances 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 Furnishings, Fixtures & Appliances company?
A good E10 depends on the Furnishings, Fixtures & Appliances 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 ADO Optronic and its competitors. ADO Optronic's current E10 is NT$-0.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ADO Optronic stock overvalued right now?
Based on GuruFocus' analysis, ADO Optronic (ROCO:3516) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$18.29, compared to a current price of NT$25.95 — trading 41.9% above its estimated fair value. The current E10 is NT$-0.16. ADO Optronic's overall GF Score™ is 62/100 with 10 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 ADO Optronic (ROCO:3516), the current E10 is NT$-0.16 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 ADO Optronic (ROCO:3516) Overvalued in 2026?

Based on GuruFocus' analysis, ADO Optronic stock appears to be overvalued. The current stock price of NT$25.95 is trading 41.9% above its estimated GF Value™ of NT$18.29. GuruFocus considers ADO Optronic to be Significantly Overvalued.

Key valuation signals for ROCO:3516:

  • E10: NT$-0.16
  • GF Value™: NT$18.29 vs. price of NT$25.95 (41.9% above fair value)
  • GF Score™: 62/100 with 10 warning signs

No single metric tells the full story. See the ROCO:3516 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


ADO Optronic Business Description

Address No.858, Guangfu Road, Taoyuan, Bade, TWN
ADO Optronic Corp is a Taiwan based company engages in the processing, assembly, and distribution of commercial lighting, indoor and outdoor LED lighting, and plastic injection products.
62GF Score

Get the complete analysis for ROCO:3516

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

NT$25.95
Price
NT$18.29
GF Value