Crystalvue Medical Co (ROCO:6527) E10: NT$4.59 (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:6527 Crystalvue Medical Co Ltd ROCO:6527
94 GF Score
Price NT$71.00
GF Value NT$95.37
Valuation Modestly Undervalued
! 1 Warning Sign
View Full Analysis

What is Crystalvue Medical Co E10?

Crystalvue Medical Co ROCO:6527 -0.28% 94 E10 is NT$4.59 as of Dec. 2025. GuruFocus rates ROCO:6527 with a GF Score™ of 94/100 and a GF Value™ of NT$95.37 (Modestly Undervalued). The stock has 1 warning sign 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.

Crystalvue Medical Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$1.430. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$4.59 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 (2026-07-16), Crystalvue Medical Co's current stock price is NT$71.00. Crystalvue Medical Co's E10 for the quarter that ended in Dec. 2025 was NT$4.59. Crystalvue Medical Co's Shiller PE Ratio of today is 15.47.

During the past 13 years, the highest Shiller PE Ratio of Crystalvue Medical Co was 17.12. The lowest was 14.60. And the median was 15.79.


Crystalvue Medical Co  (ROCO:6527) 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.

Crystalvue Medical Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=71.00/4.59
=15.47

* 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 Crystalvue Medical Co was 17.12. The lowest was 14.60. And the median was 15.79.


Be Aware

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


Crystalvue Medical Co E10 Related Terms


Crystalvue Medical Co E10 Historical Data

* Premium members only.

The historical data trend for Crystalvue Medical 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.

Crystalvue Medical Co E10 Chart

Crystalvue Medical 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 4.59

Crystalvue Medical Co 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 4.59

ROCO:6527 vs ISRG, BDX, MDLN: E10 Comparison

For the Medical Instruments & Supplies subindustry, Crystalvue Medical 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.


Crystalvue Medical Co Shiller PE Ratio vs Medical Devices & Instruments Industry

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

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


ROCO:6527
94GF Score
Crystalvue Medical Co Ltd ROCO:6527
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Crystalvue Medical 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, Crystalvue Medical Co'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)
=1.43/324.0540*324.0540
=1.430

Current CPI (Dec. 2025) = 324.0540.

Crystalvue Medical Co Quarterly Data

per share eps CPI Adj_EPS
201212 0.000 229.601 0.000
201312 0.000 233.049 0.000
201412 0.000 234.812 0.000
201506 0.000 238.638 0.000
201512 0.000 236.525 0.000
201606 0.000 241.018 0.000
201612 0.000 241.432 0.000
201706 0.000 244.955 0.000
201712 0.000 246.524 0.000
201806 0.000 251.989 0.000
201809 1.076 252.439 1.381
201812 1.105 251.233 1.425
201903 1.305 254.202 1.664
201906 0.838 256.143 1.060
201909 0.924 256.759 1.166
201912 0.952 256.974 1.201
202003 0.467 258.115 0.586
202006 0.238 257.797 0.299
202009 0.876 260.280 1.091
202012 0.638 260.474 0.794
202103 0.762 264.877 0.932
202106 0.695 271.696 0.829
202109 0.676 274.310 0.799
202112 0.924 278.802 1.074
202203 0.876 287.504 0.987
202206 1.000 296.311 1.094
202209 1.410 296.808 1.539
202212 1.190 296.797 1.299
202303 1.080 301.836 1.159
202306 1.380 305.109 1.466
202309 0.930 307.789 0.979
202312 0.710 306.746 0.750
202403 1.230 312.332 1.276
202406 1.270 314.175 1.310
202409 1.320 315.301 1.357
202412 1.140 315.605 1.171
202503 1.440 319.799 1.459
202506 1.480 322.561 1.487
202509 1.360 324.800 1.357
202512 1.430 324.054 1.430

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$4.59 mean?
Crystalvue Medical Co (ROCO:6527) has a E10 of NT$4.59 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Crystalvue Medical Co and its competitors.
Is Crystalvue Medical Co's E10 too high?
Crystalvue Medical Co's current E10 is NT$4.59. Overall, Crystalvue Medical Co has a GF Score™ of 94/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Crystalvue Medical Co's E10 compare to ISRG and BDX?
Crystalvue Medical Co's E10 of NT$4.59 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 Crystalvue Medical Co and its competitors. Crystalvue Medical Co's current E10 is NT$4.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Crystalvue Medical Co stock overvalued right now?
Based on GuruFocus' analysis, Crystalvue Medical Co (ROCO:6527) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$95.37, compared to a current price of NT$71.00 — trading 25.6% below its estimated fair value. The current E10 is NT$4.59. Crystalvue Medical Co's overall GF Score™ is 94/100 with 1 warning sign 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 Crystalvue Medical Co (ROCO:6527), the current E10 is NT$4.59 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 Crystalvue Medical Co (ROCO:6527) Overvalued in 2026?

Based on GuruFocus' analysis, Crystalvue Medical Co stock appears to be undervalued. The current stock price of NT$71.00 is trading 25.6% below its estimated GF Value™ of NT$95.37. GuruFocus considers Crystalvue Medical Co to be Modestly Undervalued.

Key valuation signals for ROCO:6527:

  • E10: NT$4.59
  • GF Value™: NT$95.37 vs. price of NT$71.00 (25.6% below fair value)
  • GF Score™: 94/100 with 1 warning sign

No single metric tells the full story. See the ROCO:6527 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Crystalvue Medical Co Business Description

Address No. 116, Lane 956, Zhongshan Road, Taoyuan District, Taoyuan, TWN, 33072
Crystalvue Medical Co Ltd is engaged in the manufacture and sale of medical devices. Its products include fundus cameras, optical coherence tomography (OCT) systems, tonometers, digital microscope cameras, lens edgers, and gastrointestinal endoscopic disposable devices, among others.
94GF Score

Get the complete analysis for ROCO:6527

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

NT$71.00
Price
NT$95.37
GF Value