Diva Laboratories (ROCO:4153) E10: NT$-0.35 (As of Dec. 2025)

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ROCO:4153 Diva Laboratories Ltd ROCO:4153
74 GF Score
Price NT$31.40
GF Value NT$38.03
Valuation Modestly Undervalued
! 2 Warning Signs
View Full Analysis

What is Diva Laboratories E10?

Diva Laboratories ROCO:4153 +0.48% 74 E10 is NT$-0.35 as of Dec. 2025. GuruFocus rates ROCO:4153 with a GF Score™ of 74/100 and a GF Value™ of NT$38.03 (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.

Diva Laboratories's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.500. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.35 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.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Diva Laboratories was -19.40% per year. The lowest was -19.40% per year. And the median was -19.40% per year.

As of today (2026-07-15), Diva Laboratories's current stock price is NT$31.40. Diva Laboratories's E10 for the quarter that ended in Dec. 2025 was NT$-0.35. Diva Laboratories's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Diva Laboratories was 430.91. The lowest was 34.06. And the median was 57.76.


Diva Laboratories  (ROCO:4153) 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.

During the past 13 years, the highest Shiller P/E Ratio of Diva Laboratories was 430.91. The lowest was 34.06. And the median was 57.76.


Be Aware

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


Diva Laboratories E10 Related Terms


Diva Laboratories E10 Historical Data

* Premium members only.

The historical data trend for Diva Laboratories'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.

Diva Laboratories E10 Chart

Diva Laboratories 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 0.51 0.48 0.33 0.00 -0.35

Diva Laboratories 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 -0.04 -0.13 -0.31 -0.35

ROCO:4153 vs TMO, DHR, IDXX: E10 Comparison

For the Diagnostics & Research subindustry, Diva Laboratories'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.


Diva Laboratories Shiller PE Ratio vs Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, Diva Laboratories's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Diva Laboratories's Shiller PE Ratio falls into.


ROCO:4153
74GF Score
Diva Laboratories Ltd ROCO:4153
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diva Laboratories 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, Diva Laboratories'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)
=0.5/324.0540*324.0540
=0.500

Current CPI (Dec. 2025) = 324.0540.

Diva Laboratories Quarterly Data

per share eps CPI Adj_EPS
201603 -0.096 238.132 -0.131
201606 0.599 241.018 0.805
201609 -0.432 241.428 -0.580
201612 -2.421 241.432 -3.250
201703 -1.618 243.801 -2.151
201706 0.851 244.955 1.126
201709 -4.447 246.819 -5.839
201712 -1.307 246.524 -1.718
201803 0.252 249.554 0.327
201806 0.408 251.989 0.525
201809 0.132 252.439 0.169
201812 0.060 251.233 0.077
201903 0.408 254.202 0.520
201906 0.348 256.143 0.440
201909 0.216 256.759 0.273
201912 -0.179 256.974 -0.226
202003 0.010 258.115 0.013
202006 0.290 257.797 0.365
202009 0.020 260.280 0.025
202012 -0.070 260.474 -0.087
202103 0.002 264.877 0.002
202106 0.110 271.696 0.131
202109 0.270 274.310 0.319
202112 -0.010 278.802 -0.012
202203 0.030 287.504 0.034
202206 0.060 296.311 0.066
202209 0.380 296.808 0.415
202212 0.360 296.797 0.393
202303 0.360 301.836 0.386
202306 0.200 305.109 0.212
202309 0.330 307.789 0.347
202312 0.350 306.746 0.370
202403 0.410 312.332 0.425
202406 0.520 314.175 0.536
202409 0.260 315.301 0.267
202412 0.390 315.605 0.400
202503 0.420 319.799 0.426
202506 0.440 322.561 0.442
202509 0.170 324.800 0.170
202512 0.500 324.054 0.500

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$-0.35 mean?
Diva Laboratories (ROCO:4153) has a E10 of NT$-0.35 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Diva Laboratories and its competitors.
Is Diva Laboratories' E10 too high?
Diva Laboratories' current E10 is NT$-0.35. Overall, Diva Laboratories has a GF Score™ of 74/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diva Laboratories' E10 compare to TMO and DHR?
Diva Laboratories' E10 of NT$-0.35 can be compared against companies in the Medical Diagnostics & Research 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 Diagnostics & Research company?
A good E10 depends on the Medical Diagnostics & Research 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 Diva Laboratories and its competitors. Diva Laboratories's current E10 is NT$-0.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diva Laboratories stock overvalued right now?
Based on GuruFocus' analysis, Diva Laboratories (ROCO:4153) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$38.03, compared to a current price of NT$31.40 — trading 17.4% below its estimated fair value. The current E10 is NT$-0.35. Diva Laboratories' overall GF Score™ is 74/100 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 Diva Laboratories (ROCO:4153), the current E10 is NT$-0.35 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 Diva Laboratories (ROCO:4153) Overvalued in 2026?

Based on GuruFocus' analysis, Diva Laboratories stock appears to be undervalued. The current stock price of NT$31.40 is trading 17.4% below its estimated GF Value™ of NT$38.03. GuruFocus considers Diva Laboratories to be Modestly Undervalued.

Key valuation signals for ROCO:4153:

  • E10: NT$-0.35
  • GF Value™: NT$38.03 vs. price of NT$31.40 (17.4% below fair value)
  • GF Score™: 74/100 with 2 warning signs

No single metric tells the full story. See the ROCO:4153 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Diva Laboratories Business Description

Address Zhongshan Road, 9th Floor, No.351, Section 2, Zhonghe District, New Taipei City, TWN, 235602
Diva Laboratories Ltd is engaged in the sale, manufacturing and development of medical equipment and computer-related devices. Its products are divided into Medical display which includes radiology, endo/surgical, touch, and embedded display; and Industrial display which includes touch display monitors. It derives revenue from sale of Medical monitors, Medical parts, Industrial monitors, Industrial parts, and Parts. Geographically it operates and derives revenue from Taiwan.
74GF Score

Get the complete analysis for ROCO:4153

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

NT$31.40
Price
NT$38.03
GF Value