Shih-Kuen Co (ROCO:4305) E10: NT$3.32 (As of Dec. 2025)


ROCO:4305 Shih-Kuen Co Ltd ROCO:4305
83 GF Score
Price NT$42.55
GF Value NT$46.57
Valuation Fairly Valued
! 2 Warning Signs
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What is Shih-Kuen Co E10?

Shih-Kuen Co ROCO:4305 -0.47% 83 E10 is NT$3.32 as of Dec. 2025. GuruFocus rates ROCO:4305 with a GF Score™ of 83/100 and a GF Value™ of NT$46.57 (Fairly Valued). 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.

Shih-Kuen Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$1.210. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$3.32 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Shih-Kuen Co's average E10 Growth Rate was 1.80% per year. During the past 3 years, the average E10 Growth Rate was 3.10% per year. During the past 5 years, the average E10 Growth Rate was 4.50% 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 Shih-Kuen Co was 6.60% per year. The lowest was 3.10% per year. And the median was 4.70% per year.

As of today (2026-07-02), Shih-Kuen Co's current stock price is NT$42.55. Shih-Kuen Co's E10 for the quarter that ended in Dec. 2025 was NT$3.32. Shih-Kuen Co's Shiller PE Ratio of today is 12.82.

During the past 13 years, the highest Shiller PE Ratio of Shih-Kuen Co was 15.19. The lowest was 9.46. And the median was 12.54.


Shih-Kuen Co  (ROCO:4305) 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.

Shih-Kuen Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=42.55/3.32
=12.82

* 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 Shih-Kuen Co was 15.19. The lowest was 9.46. And the median was 12.54.


Be Aware

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


Shih-Kuen Co E10 Related Terms


Shih-Kuen Co E10 Historical Data

* Premium members only.

The historical data trend for Shih-Kuen 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.

Shih-Kuen Co E10 Chart

Shih-Kuen 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 2.89 3.03 3.08 3.26 3.32

Shih-Kuen 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 3.26 3.34 3.28 3.32 3.32

ROCO:4305 vs ORLY, AZO: E10 Comparison

For the Auto Parts subindustry, Shih-Kuen 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.


Shih-Kuen Co Shiller PE Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Shih-Kuen Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Shih-Kuen Co's Shiller PE Ratio falls into.


ROCO:4305
83GF Score
Shih-Kuen Co Ltd ROCO:4305
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Shih-Kuen 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, Shih-Kuen 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)
=1.21/324.0540*324.0540
=1.210

Current CPI (Dec. 2025) = 324.0540.

Shih-Kuen Co Quarterly Data

per share eps CPI Adj_EPS
201603 0.630 238.132 0.857
201606 0.930 241.018 1.250
201609 0.410 241.428 0.550
201612 1.020 241.432 1.369
201703 0.380 243.801 0.505
201706 0.790 244.955 1.045
201709 0.670 246.819 0.880
201712 0.640 246.524 0.841
201803 0.680 249.554 0.883
201806 1.080 251.989 1.389
201809 0.660 252.439 0.847
201812 0.750 251.233 0.967
201903 0.700 254.202 0.892
201906 0.750 256.143 0.949
201909 0.580 256.759 0.732
201912 0.290 256.974 0.366
202003 0.720 258.115 0.904
202006 0.200 257.797 0.251
202009 0.560 260.280 0.697
202012 0.590 260.474 0.734
202103 0.690 264.877 0.844
202106 0.290 271.696 0.346
202109 0.400 274.310 0.473
202112 0.640 278.802 0.744
202203 0.750 287.504 0.845
202206 0.800 296.311 0.875
202209 0.850 296.808 0.928
202212 0.270 296.797 0.295
202303 0.560 301.836 0.601
202306 0.830 305.109 0.882
202309 1.130 307.789 1.190
202312 0.380 306.746 0.401
202403 1.090 312.332 1.131
202406 1.080 314.175 1.114
202409 0.700 315.301 0.719
202412 1.080 315.605 1.109
202503 1.090 319.799 1.105
202506 0.090 322.561 0.090
202509 1.410 324.800 1.407
202512 1.210 324.054 1.210

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$3.32 mean?
Shih-Kuen Co (ROCO:4305) has a E10 of NT$3.32 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Shih-Kuen Co and its competitors.
Is Shih-Kuen Co's E10 too high?
Shih-Kuen Co's current E10 is NT$3.32. Overall, Shih-Kuen Co has a GF Score™ of 83/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Shih-Kuen Co's E10 compare to ORLY and AZO?
Shih-Kuen Co's E10 of NT$3.32 can be compared against companies in the Vehicles & Parts 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 Vehicles & Parts company?
A good E10 depends on the Vehicles & Parts 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 Shih-Kuen Co and its competitors. Shih-Kuen Co's current E10 is NT$3.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Shih-Kuen Co stock overvalued right now?
Based on GuruFocus' analysis, Shih-Kuen Co (ROCO:4305) is currently considered Fairly Valued. The stock's GF Value™ is NT$46.57, compared to a current price of NT$42.55 — trading 8.6% below its estimated fair value. The current E10 is NT$3.32. Shih-Kuen Co's overall GF Score™ is 83/100 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 Shih-Kuen Co (ROCO:4305), the current E10 is NT$3.32 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 Shih-Kuen Co (ROCO:4305) Overvalued in 2026?

Based on GuruFocus' analysis, Shih-Kuen Co stock appears to be undervalued. The current stock price of NT$42.55 is trading 8.6% below its estimated GF Value™ of NT$46.57. GuruFocus considers Shih-Kuen Co to be Fairly Valued.

Key valuation signals for ROCO:4305:

  • E10: NT$3.32
  • GF Value™: NT$46.57 vs. price of NT$42.55 (8.6% below fair value)
  • GF Score™: 83/100 with 2 warning signs

No single metric tells the full story. See the ROCO:4305 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Shih-Kuen Co Business Description

Address 32-26, No. 32-27, Madou Kou, Macouli, Madou District, Tainan, TWN
Shih-Kuen Co Ltd is a Taiwan-based plastic products manufacturing company. Its product portfolio comprises plastic sheets, inflatable toys, tablecloths and table mats, construction materials, flooring tiles, handbags, stationery, signboards, and sunshade curtains, among others.
83GF Score

Get the complete analysis for ROCO:4305

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

NT$42.55
Price
NT$46.57
GF Value