Taiwan Biomateiral Co (ROCO:6649) E10: NT$-0.95 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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ROCO:6649 Taiwan Biomateiral Co Ltd ROCO:6649
80 GF Score
Price NT$35.75
GF Value NT$58.63
Valuation Possible Value Trap
! 5 Warning Signs
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What is Taiwan Biomateiral Co E10?

Taiwan Biomateiral Co ROCO:6649 80 E10 is NT$-0.95 as of Jun. 2026. GuruFocus rates ROCO:6649 with a GF Score™ of 80/100 and a GF Value™ of NT$58.63 (Possible Value Trap). The stock has 5 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.

Taiwan Biomateiral Co's adjusted earnings per share data for the three months ended in Jun. 2026 was NT$0.010. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.95 for the trailing ten years ended in Jun. 2026.

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 (2026-09-06), Taiwan Biomateiral Co's current stock price is NT$35.75. Taiwan Biomateiral Co's E10 for the quarter that ended in Jun. 2026 was NT$-0.95. Taiwan Biomateiral Co's Shiller PE Ratio of today is .


Taiwan Biomateiral Co  (ROCO:6649) 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.


Taiwan Biomateiral Co E10 Related Terms


Taiwan Biomateiral Co E10 Historical Data

* Premium members only.

The historical data trend for Taiwan Biomateiral Co'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.

Taiwan Biomateiral Co E10 Chart

Taiwan Biomateiral Co 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 0.00

Taiwan Biomateiral Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 -0.97 -0.95

ROCO:6649 vs ABT, SYK, MDT: E10 Comparison

For the Medical Devices subindustry, Taiwan Biomateiral Co'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.


Taiwan Biomateiral Co Shiller PE Ratio vs Medical Devices & Instruments Industry

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

* The bar in red indicates where Taiwan Biomateiral Co's Shiller PE Ratio falls into.


ROCO:6649
80GF Score
Taiwan Biomateiral Co Ltd ROCO:6649
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Taiwan Biomateiral Co 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, Taiwan Biomateiral Co's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.01/333.9520*333.9520
=0.010

Current CPI (Jun. 2026) = 333.9520.

Taiwan Biomateiral Co Quarterly Data

per share eps CPI Adj_EPS
201412 0.000 234.812 0.000
201512 0.000 236.525 0.000
201612 0.000 241.432 0.000
201706 0.000 244.955 0.000
201709 -0.416 246.819 -0.563
201712 -0.512 246.524 -0.694
201803 -0.454 249.554 -0.608
201806 -0.425 251.989 -0.563
201809 -0.522 252.439 -0.691
201812 -0.551 251.233 -0.732
201903 -0.551 254.202 -0.724
201906 -0.667 256.143 -0.870
201909 -0.445 256.759 -0.579
201912 -0.513 256.974 -0.667
202003 -0.532 258.115 -0.688
202006 -0.561 257.797 -0.727
202009 -0.464 260.280 -0.595
202012 -0.114 260.474 -0.146
202103 -0.400 264.877 -0.504
202106 -0.390 271.696 -0.479
202109 -0.180 274.310 -0.219
202112 -0.470 278.802 -0.563
202203 -0.120 287.504 -0.139
202206 0.080 296.311 0.090
202209 0.460 296.808 0.518
202212 0.390 296.797 0.439
202303 0.050 301.836 0.055
202306 0.080 305.109 0.088
202309 -0.200 307.789 -0.217
202312 -0.180 306.746 -0.196
202403 -0.020 312.332 -0.021
202406 -0.030 314.175 -0.032
202409 -0.030 315.301 -0.032
202412 0.040 315.605 0.042
202503 0.790 319.799 0.825
202506 -0.155 322.561 -0.160
202509 0.680 324.800 0.699
202512 0.090 324.054 0.093
202603 0.003 330.213 0.003
202606 0.010 333.952 0.010

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$-0.95 mean?
Taiwan Biomateiral Co (ROCO:6649) has a E10 of NT$-0.95 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Taiwan Biomateiral Co and its competitors.
Is Taiwan Biomateiral Co's E10 too high?
Taiwan Biomateiral Co's current E10 is NT$-0.95. Overall, Taiwan Biomateiral Co has a GF Score™ of 80/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Taiwan Biomateiral Co's E10 compare to ABT and SYK?
Taiwan Biomateiral Co's E10 of NT$-0.95 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 Taiwan Biomateiral Co and its competitors. Taiwan Biomateiral Co's current E10 is NT$-0.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Biomateiral Co stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Biomateiral Co (ROCO:6649) is currently considered Possible Value Trap. The stock's GF Value™ is NT$58.63, compared to a current price of NT$35.75 — trading 39% below its estimated fair value. The current E10 is NT$-0.95. Taiwan Biomateiral Co's overall GF Score™ is 80/100 with 5 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 Taiwan Biomateiral Co (ROCO:6649), the current E10 is NT$-0.95 as of Jun. 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 Taiwan Biomateiral Co (ROCO:6649) Overvalued in 2026?

Based on GuruFocus' analysis, Taiwan Biomateiral Co stock appears to be undervalued. The current stock price of NT$35.75 is trading 39% below its estimated GF Value™ of NT$58.63. GuruFocus considers Taiwan Biomateiral Co to be Possible Value Trap.

Key valuation signals for ROCO:6649:

  • E10: NT$-0.95
  • GF Value™: NT$58.63 vs. price of NT$35.75 (39% below fair value)
  • GF Score™: 80/100 with 5 warning signs

No single metric tells the full story. See the ROCO:6649 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Taiwan Biomateiral Co Business Description

Address Section 1, Shengyi Road, 1st Floor, No. 188, Hsinchu County, Zhubei, TWN, 302
Taiwan Biomateiral Co Ltd is an applied technology Research and Development Institute in Taiwan. It is engaged in the research and development and sales of implantable medical devices. The company's products include Foamagen, stroke interventional treatment devices.
80GF Score

Get the complete analysis for ROCO:6649

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

NT$35.75
Price
NT$58.63
GF Value