Value Valves Co (ROCO:4580) E10: NT$7.74 (As of Dec. 2025)


ROCO:4580 Value Valves Co Ltd ROCO:4580
87 GF Score
Price NT$81.70
GF Value NT$77.80
Valuation Fairly Valued
! 4 Warning Signs
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What is Value Valves Co E10?

Value Valves Co ROCO:4580 -1.45% 87 E10 is NT$7.74 as of Dec. 2025. GuruFocus rates ROCO:4580 with a GF Score™ of 87/100 and a GF Value™ of NT$77.80 (Fairly Valued). The stock has 4 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.

Value Valves Co's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was NT$4.980. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$7.74 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Value Valves Co's average E10 Growth Rate was 4.30% 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.

As of today (2026-07-07), Value Valves Co's current stock price is NT$ 81.70. Value Valves Co's E10 for the fiscal year that ended in Dec. 2025 was NT$7.74. Value Valves Co's Shiller PE Ratio of today is 10.56.

During the past 11 years, the highest Shiller PE Ratio of Value Valves Co was 12.83. The lowest was 10.28. And the median was 10.61.


Value Valves Co  (ROCO:4580) 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.

Value Valves Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=81.70/7.74
=10.56

* 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 11 years, the highest Shiller P/E Ratio of Value Valves Co was 12.83. The lowest was 10.28. And the median was 10.61.


Be Aware

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


Value Valves Co E10 Related Terms


Value Valves Co E10 Historical Data

* Premium members only.

The historical data trend for Value Valves 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.

Value Valves Co E10 Chart

Value Valves 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 7.42 7.74

Value Valves 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 7.42 0.00 0.00 0.00 7.74

ROCO:4580 vs GEV, ETN, PH: E10 Comparison

For the Specialty Industrial Machinery subindustry, Value Valves 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.


Value Valves Co Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Value Valves Co's Shiller PE Ratio distribution charts can be found below:

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


ROCO:4580
87GF Score
Value Valves Co Ltd ROCO:4580
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Value Valves 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, Value Valves Co's adjusted earnings per share data for the fiscal year that ended in Dec. 2025 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=4.98/324.0540*324.0540
=4.980

Current CPI (Dec. 2025) = 324.0540.

Value Valves Co Annual Data

per_share_eps CPI Adj_EPS
201612 5.105 241.432 6.852
201712 3.893 246.524 5.117
201812 5.780 251.233 7.455
201912 7.895 256.974 9.956
202012 7.488 260.474 9.316
202112 8.030 278.802 9.333
202212 7.580 296.797 8.276
202312 7.210 306.746 7.617
202412 8.300 315.605 8.522
202512 4.980 324.054 4.980

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$7.74 mean?
Value Valves Co (ROCO:4580) has a E10 of NT$7.74 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Value Valves Co and its competitors.
Is Value Valves Co's E10 too high?
Value Valves Co's current E10 is NT$7.74. Overall, Value Valves Co has a GF Score™ of 87/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Value Valves Co's E10 compare to GEV and ETN?
Value Valves Co's E10 of NT$7.74 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good E10 depends on the Industrial Products 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 Value Valves Co and its competitors. Value Valves Co's current E10 is NT$7.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Value Valves Co stock overvalued right now?
Based on GuruFocus' analysis, Value Valves Co (ROCO:4580) is currently considered Fairly Valued. The stock's GF Value™ is NT$77.80, compared to a current price of NT$81.70 — trading 5% above its estimated fair value. The current E10 is NT$7.74. Value Valves Co's overall GF Score™ is 87/100 with 4 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 Value Valves Co (ROCO:4580), the current E10 is NT$7.74 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 Value Valves Co (ROCO:4580) Overvalued in 2026?

Based on GuruFocus' analysis, Value Valves Co stock appears to be overvalued. The current stock price of NT$81.70 is trading 5% above its estimated GF Value™ of NT$77.80. GuruFocus considers Value Valves Co to be Fairly Valued.

Key valuation signals for ROCO:4580:

  • E10: NT$7.74
  • GF Value™: NT$77.80 vs. price of NT$81.70 (5% above fair value)
  • GF Score™: 87/100 with 4 warning signs

No single metric tells the full story. See the ROCO:4580 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Value Valves Co Business Description

Address No. 2, Chung-Shan Road, Tu-Chung Industrial District, New Taipei City, TWN, 236
Value Valves Co Ltd is a Taiwan based company engaged in the development, design, manufacture, inspection and marketing of a different variety of valves. Its product offerings include butterfly valves, check valves, damper valves, ball valves, globe valves, gate valves, gear box control, pneumatic control, hydraulic control, electric control and customized valves. The company exports its products to the United States, Japan, Europe, Oceania and other advanced industrial and regions. Its products are widely used in petroleum and petrochemical products, steel, shipbuilding, energy. water treatment, paper, air-conditioning, electronic and other industrial fields.
87GF Score

Get the complete analysis for ROCO:4580

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

NT$81.70
Price
NT$77.80
GF Value