Taiwan Chinsan Electronic Industrial Co (ROCO:8042) E10: NT$1.72 (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:8042 Taiwan Chinsan Electronic Industrial Co Ltd ROCO:8042
47 GF Score
Price NT$129.50
GF Value NT$41.73
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Taiwan Chinsan Electronic Industrial Co E10?

Taiwan Chinsan Electronic Industrial Co ROCO:8042 -9.76% 47 E10 is NT$1.72 as of Dec. 2025. GuruFocus rates ROCO:8042 with a GF Score™ of 47/100 and a GF Value™ of NT$41.73 (Significantly Overvalued). The stock has 7 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 Chinsan Electronic Industrial Co's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.650. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$1.72 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Taiwan Chinsan Electronic Industrial Co's average E10 Growth Rate was -16.50% per year. During the past 3 years, the average E10 Growth Rate was -16.70% per year. During the past 5 years, the average E10 Growth Rate was -13.50% 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 Taiwan Chinsan Electronic Industrial Co was -9.30% per year. The lowest was -16.70% per year. And the median was -12.25% per year.

As of today (2026-07-18), Taiwan Chinsan Electronic Industrial Co's current stock price is NT$129.50. Taiwan Chinsan Electronic Industrial Co's E10 for the quarter that ended in Dec. 2025 was NT$1.72. Taiwan Chinsan Electronic Industrial Co's Shiller PE Ratio of today is 75.29.

During the past 13 years, the highest Shiller PE Ratio of Taiwan Chinsan Electronic Industrial Co was 122.38. The lowest was 6.40. And the median was 13.47.


Taiwan Chinsan Electronic Industrial Co  (ROCO:8042) 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.

Taiwan Chinsan Electronic Industrial Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=129.50/1.72
=75.29

* 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 Taiwan Chinsan Electronic Industrial Co was 122.38. The lowest was 6.40. And the median was 13.47.


Be Aware

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


Taiwan Chinsan Electronic Industrial Co E10 Related Terms


Taiwan Chinsan Electronic Industrial Co E10 Historical Data

* Premium members only.

The historical data trend for Taiwan Chinsan Electronic Industrial 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 Chinsan Electronic Industrial Co E10 Chart

Taiwan Chinsan Electronic Industrial 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 3.31 2.98 2.52 2.06 1.72

Taiwan Chinsan Electronic Industrial 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 2.06 1.95 1.88 1.83 1.72

ROCO:8042 vs APH, GLW: E10 Comparison

For the Electronic Components subindustry, Taiwan Chinsan Electronic Industrial 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 Chinsan Electronic Industrial Co Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Taiwan Chinsan Electronic Industrial Co's Shiller PE Ratio distribution charts can be found below:

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


ROCO:8042
47GF Score
Taiwan Chinsan Electronic Industrial Co Ltd ROCO:8042
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Taiwan Chinsan Electronic Industrial 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 Chinsan Electronic Industrial 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)
=0.65/324.0540*324.0540
=0.650

Current CPI (Dec. 2025) = 324.0540.

Taiwan Chinsan Electronic Industrial Co Quarterly Data

per share eps CPI Adj_EPS
201603 1.053 238.132 1.433
201606 0.883 241.018 1.187
201609 1.626 241.428 2.182
201612 1.118 241.432 1.501
201703 1.156 243.801 1.537
201706 0.883 244.955 1.168
201709 1.291 246.819 1.695
201712 0.405 246.524 0.532
201803 0.764 249.554 0.992
201806 0.255 251.989 0.328
201809 0.094 252.439 0.121
201812 -0.151 251.233 -0.195
201903 -0.151 254.202 -0.192
201906 -0.226 256.143 -0.286
201909 0.155 256.759 0.196
201912 0.252 256.974 0.318
202003 -0.340 258.115 -0.427
202006 0.456 257.797 0.573
202009 0.233 260.280 0.290
202012 -0.260 260.474 -0.323
202103 0.050 264.877 0.061
202106 0.310 271.696 0.370
202109 0.250 274.310 0.295
202112 0.590 278.802 0.686
202203 0.530 287.504 0.597
202206 0.410 296.311 0.448
202209 0.180 296.808 0.197
202212 -0.330 296.797 -0.360
202303 0.060 301.836 0.064
202306 0.300 305.109 0.319
202309 0.070 307.789 0.074
202312 0.280 306.746 0.296
202403 -0.030 312.332 -0.031
202406 0.280 314.175 0.289
202409 0.270 315.301 0.277
202412 0.080 315.605 0.082
202503 -0.070 319.799 -0.071
202506 0.020 322.561 0.020
202509 0.300 324.800 0.299
202512 0.650 324.054 0.650

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$1.72 mean?
Taiwan Chinsan Electronic Industrial Co (ROCO:8042) has a E10 of NT$1.72 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Taiwan Chinsan Electronic Industrial Co and its competitors.
Is Taiwan Chinsan Electronic Industrial Co's E10 too high?
Taiwan Chinsan Electronic Industrial Co's current E10 is NT$1.72. Overall, Taiwan Chinsan Electronic Industrial Co has a GF Score™ of 47/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Chinsan Electronic Industrial Co's E10 compare to APH and GLW?
Taiwan Chinsan Electronic Industrial Co's E10 of NT$1.72 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 Chinsan Electronic Industrial Co and its competitors. Taiwan Chinsan Electronic Industrial Co's current E10 is NT$1.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Chinsan Electronic Industrial Co stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Chinsan Electronic Industrial Co (ROCO:8042) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$41.73, compared to a current price of NT$129.50 — trading 210.3% above its estimated fair value. The current E10 is NT$1.72. Taiwan Chinsan Electronic Industrial Co's overall GF Score™ is 47/100 with 7 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 Chinsan Electronic Industrial Co (ROCO:8042), the current E10 is NT$1.72 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 Taiwan Chinsan Electronic Industrial Co (ROCO:8042) Overvalued in 2026?

Based on GuruFocus' analysis, Taiwan Chinsan Electronic Industrial Co stock appears to be overvalued. The current stock price of NT$129.50 is trading 210.3% above its estimated GF Value™ of NT$41.73. GuruFocus considers Taiwan Chinsan Electronic Industrial Co to be Significantly Overvalued.

Key valuation signals for ROCO:8042:

  • E10: NT$1.72
  • GF Value™: NT$41.73 vs. price of NT$129.50 (210.3% above fair value)
  • GF Score™: 47/100 with 7 warning signs

No single metric tells the full story. See the ROCO:8042 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Taiwan Chinsan Electronic Industrial Co Business Description

Address Section 1, Guangfu Road, 2nd Floor, No. 1, Alley 11, Lane 68, Sanchong District, New Taipei City, Taipei, TWN, 24158
Taiwan Chinsan Electronic Industrial Co Ltd is principally engaged in the manufacturing, processing, sale, and import and export of various electronic equipment and capacitors. The Group's only reportable operating segment is the electronic components segment, which is principally engaged in the manufacturing, processing, purchase, sale, import and export of various electronic equipment and capacitors. The company's product offerings include aluminum electrolytic capacitors, E-Cap SMD type (aluminum electrolytic SMD), radial lead type (general), radial lead type (low ESR), snap-in, lug terminal type, screw terminal type, aluminum polymer, polymer radial lead type, polymer SMD type, and other products.
47GF Score

Get the complete analysis for ROCO:8042

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

NT$129.50
Price
NT$41.73
GF Value