Bioptik Technology (ROCO:4161) E10: NT$0.47 (As of Dec. 2025)


ROCO:4161 Bioptik Technology Inc ROCO:4161
68 GF Score
Price NT$23.00
GF Value NT$27.79
Valuation Modestly Undervalued
! 2 Warning Signs
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What is Bioptik Technology E10?

Bioptik Technology ROCO:4161 68 E10 is NT$0.47 as of Dec. 2025. GuruFocus rates ROCO:4161 with a GF Score™ of 68/100 and a GF Value™ of NT$27.79 (Modestly Undervalued). The stock has 2 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.

Bioptik Technology's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.450. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$0.47 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Bioptik Technology's average E10 Growth Rate was 17.50% per year. During the past 3 years, the average E10 Growth Rate was 11.40% per year. During the past 5 years, the average E10 Growth Rate was 19.00% 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 Bioptik Technology was 18.60% per year. The lowest was 11.40% per year. And the median was 17.00% per year.

As of today (2026-07-12), Bioptik Technology's current stock price is NT$23.00. Bioptik Technology's E10 for the quarter that ended in Dec. 2025 was NT$0.47. Bioptik Technology's Shiller PE Ratio of today is 48.94.

During the past 13 years, the highest Shiller PE Ratio of Bioptik Technology was 147.02. The lowest was 48.40. And the median was 83.88.


Bioptik Technology  (ROCO:4161) 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.

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

Shiller PE Ratio=Share Price/E10
=23.00/0.47
=48.94

* 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 Bioptik Technology was 147.02. The lowest was 48.40. And the median was 83.88.


Be Aware

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


Bioptik Technology E10 Related Terms


Bioptik Technology E10 Historical Data

* Premium members only.

The historical data trend for Bioptik 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.

Bioptik Technology E10 Chart

Bioptik 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 0.25 0.34 0.30 0.40 0.47

Bioptik 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 0.40 0.40 0.40 0.45 0.47

ROCO:4161 vs ABT, SYK, MDT: E10 Comparison

For the Medical Devices subindustry, Bioptik 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.


Bioptik Technology Shiller PE Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Bioptik Technology's Shiller PE Ratio distribution charts can be found below:

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


ROCO:4161
68GF Score
Bioptik Technology Inc ROCO:4161
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Bioptik 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, Bioptik 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)
=0.45/324.0540*324.0540
=0.450

Current CPI (Dec. 2025) = 324.0540.

Bioptik Technology Quarterly Data

per share eps CPI Adj_EPS
201603 -0.112 238.132 -0.152
201606 0.160 241.018 0.215
201609 -0.016 241.428 -0.021
201612 0.104 241.432 0.140
201703 -0.449 243.801 -0.597
201706 0.064 244.955 0.085
201709 -0.034 246.819 -0.045
201712 -0.126 246.524 -0.166
201803 0.034 249.554 0.044
201806 0.767 251.989 0.986
201809 -0.312 252.439 -0.401
201812 -0.059 251.233 -0.076
201903 0.008 254.202 0.010
201906 0.084 256.143 0.106
201909 0.126 256.759 0.159
201912 -0.126 256.974 -0.159
202003 -0.244 258.115 -0.306
202006 -0.110 257.797 -0.138
202009 -0.413 260.280 -0.514
202012 -0.287 260.474 -0.357
202103 0.034 264.877 0.042
202106 0.076 271.696 0.091
202109 0.194 274.310 0.229
202112 0.093 278.802 0.108
202203 0.034 287.504 0.038
202206 0.017 296.311 0.019
202209 0.504 296.808 0.550
202212 0.327 296.797 0.357
202303 0.133 301.836 0.143
202306 0.221 305.109 0.235
202309 0.540 307.789 0.569
202312 0.602 306.746 0.636
202403 0.310 312.332 0.322
202406 0.496 314.175 0.512
202409 0.310 315.301 0.319
202412 0.490 315.605 0.503
202503 0.248 319.799 0.251
202506 0.071 322.561 0.071
202509 0.450 324.800 0.449
202512 0.450 324.054 0.450

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$0.47 mean?
Bioptik Technology (ROCO:4161) has a E10 of NT$0.47 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Bioptik Technology and its competitors.
Is Bioptik Technology's E10 too high?
Bioptik Technology's current E10 is NT$0.47. Overall, Bioptik Technology has a GF Score™ of 68/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Bioptik Technology's E10 compare to ABT and SYK?
Bioptik Technology's E10 of NT$0.47 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good E10 depends on the Medical Devices & Instruments 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 Bioptik Technology and its competitors. Bioptik Technology's current E10 is NT$0.47. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Bioptik Technology stock overvalued right now?
Based on GuruFocus' analysis, Bioptik Technology (ROCO:4161) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$27.79, compared to a current price of NT$23.00 — trading 17.2% below its estimated fair value. The current E10 is NT$0.47. Bioptik Technology's overall GF Score™ is 68/100 with 2 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 Bioptik Technology (ROCO:4161), the current E10 is NT$0.47 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 Bioptik Technology (ROCO:4161) Overvalued in 2026?

Based on GuruFocus' analysis, Bioptik Technology stock appears to be undervalued. The current stock price of NT$23.00 is trading 17.2% below its estimated GF Value™ of NT$27.79. GuruFocus considers Bioptik Technology to be Modestly Undervalued.

Key valuation signals for ROCO:4161:

  • E10: NT$0.47
  • GF Value™: NT$27.79 vs. price of NT$23.00 (17.2% below fair value)
  • GF Score™: 68/100 with 2 warning signs

No single metric tells the full story. See the ROCO:4161 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Bioptik Technology Business Description

Address No.188, Zhonghua South Road, Miaoli County, Zhunan, TWN, 35057
Bioptik Technology Inc is a Taiwan-based company engaged in the research, development, production, and sale of medical devices and reagents. The company is also focused on developing skin care products and aims to engage in developing bioenergy, Astaxanthin, and Cellulose Bioethanol. It is involved in the business areas of Home care medical devices, Skincare- Its own brand, Dietary supplement OEM and ODM, Skincare- OEM and ODM, and Biodiesel. In the Home care business area, the company provides Easy Touch blood glucose monitoring, and blood cholesterol and uric acid monitoring systems, as well as its strips.
68GF Score

Get the complete analysis for ROCO:4161

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

NT$23.00
Price
NT$27.79
GF Value