Polylite Taiwan Co (ROCO:1813) E10: NT$ (As of Jun. 2026)

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ROCO:1813 Polylite Taiwan Co Ltd ROCO:1813
62 GF Score
Price NT$11.35
GF Value NT$15.53
Valuation Modestly Undervalued
! 5 Warning Signs
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What is Polylite Taiwan Co E10?

Polylite Taiwan Co ROCO:1813 62 E10 is NT$ as of Jun. 2026. GuruFocus rates ROCO:1813 with a GF Score™ of 62/100 and a GF Value™ of NT$15.53 (Modestly Undervalued). The stock has 5 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.

Polylite Taiwan Co's adjusted earnings per share data for the three months ended in Jun. 2026 was NT$0.101. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$ for the trailing ten years ended in Jun. 2026.

During the past 12 months, Polylite Taiwan Co's average E10 Growth Rate was -55.30% per year. During the past 3 years, the average E10 Growth Rate was -37.00% per year. During the past 5 years, the average E10 Growth Rate was -26.40% 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 Polylite Taiwan Co was -11.00% per year. The lowest was -37.00% per year. And the median was -18.20% per year.

As of today (2026-09-21), Polylite Taiwan Co's current stock price is NT$11.35. Polylite Taiwan Co's E10 for the quarter that ended in Jun. 2026 was NT$. Polylite Taiwan Co's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Polylite Taiwan Co was 57.38. The lowest was 10.85. And the median was 18.17.


Polylite Taiwan Co  (ROCO:1813) 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 Polylite Taiwan Co was 57.38. The lowest was 10.85. And the median was 18.17.


Be Aware

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


Polylite Taiwan Co E10 Related Terms


Polylite Taiwan Co E10 Historical Data

* Premium members only.

The historical data trend for Polylite Taiwan 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.

Polylite Taiwan Co E10 Chart

Polylite Taiwan Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
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Polylite Taiwan Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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ROCO:1813 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, Polylite Taiwan 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.


Polylite Taiwan Co Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Polylite Taiwan Co's Shiller PE Ratio distribution charts can be found below:

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


ROCO:1813
62GF Score
Polylite Taiwan Co Ltd ROCO:1813
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Polylite Taiwan 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, Polylite Taiwan Co's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.1014/333.9520*333.9520
=0.101

Current CPI (Jun. 2026) = 333.9520.

Polylite Taiwan Co Quarterly Data

per share eps CPI Adj_EPS
201609 0.160 241.428 0.221
201612 0.050 241.432 0.069
201703 -0.030 243.801 -0.041
201706 0.210 244.955 0.286
201709 0.070 246.819 0.095
201712 -0.206 246.524 -0.279
201803 0.180 249.554 0.241
201806 0.760 251.989 1.007
201809 0.181 252.439 0.239
201812 0.254 251.233 0.337
201903 0.435 254.202 0.571
201906 0.463 256.143 0.604
201909 0.323 256.759 0.420
201912 -0.170 256.974 -0.220
202003 0.305 258.115 0.394
202006 -0.329 257.797 -0.426
202009 -0.026 260.280 -0.033
202012 0.046 260.474 0.058
202103 0.245 264.877 0.308
202106 -0.155 271.696 -0.191
202109 -0.021 274.310 -0.025
202112 -0.350 278.802 -0.420
202203 0.324 287.504 0.377
202206 0.237 296.311 0.267
202209 0.410 296.808 0.461
202212 -0.828 296.797 -0.931
202303 0.083 301.836 0.092
202306 0.237 305.109 0.260
202309 0.337 307.789 0.366
202312 -0.418 306.746 -0.455
202403 0.406 312.332 0.434
202406 -0.241 314.175 -0.256
202409 -0.210 315.301 -0.222
202412 -0.584 315.605 -0.618
202503 0.010 319.799 0.010
202506 -1.051 322.561 -1.088
202509 0.107 324.800 0.110
202512 -0.094 324.054 -0.097
202603 0.111 330.213 0.112
202606 0.101 333.952 0.101

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$ mean?
Polylite Taiwan Co (ROCO:1813) has a E10 of NT$ as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Polylite Taiwan Co and its competitors.
Is Polylite Taiwan Co's E10 too high?
Polylite Taiwan Co's current E10 is NT$. Overall, Polylite Taiwan Co has a GF Score™ of 62/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Polylite Taiwan Co's E10 compare to NVDA and AVGO?
Polylite Taiwan Co's E10 of NT$ can be compared against companies in the Semiconductors 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 Semiconductors company?
A good E10 depends on the Semiconductors 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 Polylite Taiwan Co and its competitors. Polylite Taiwan Co's current E10 is NT$. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Polylite Taiwan Co stock overvalued right now?
Based on GuruFocus' analysis, Polylite Taiwan Co (ROCO:1813) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$15.53, compared to a current price of NT$11.35 — trading 26.9% below its estimated fair value. The current E10 is NT$. Polylite Taiwan Co's overall GF Score™ is 62/100 with 5 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 Polylite Taiwan Co (ROCO:1813), the current E10 is NT$ as of Jun. 2026. 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 Polylite Taiwan Co (ROCO:1813) Overvalued in 2026?

Based on GuruFocus' analysis, Polylite Taiwan Co stock appears to be undervalued. The current stock price of NT$11.35 is trading 26.9% below its estimated GF Value™ of NT$15.53. GuruFocus considers Polylite Taiwan Co to be Modestly Undervalued.

Key valuation signals for ROCO:1813:

  • E10: NT$
  • GF Value™: NT$15.53 vs. price of NT$11.35 (26.9% below fair value)
  • GF Score™: 62/100 with 5 warning signs

No single metric tells the full story. See the ROCO:1813 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Polylite Taiwan Co Business Description

Address No. 406, Changfa Road, Dayuan District, Tao-Yuan, TWN
Polylite Taiwan Co Ltd is a Taiwan-based company engaged in the manufacture and distribution of GIA polycarbonate lenses. Some of its products include progressive, KID, and polarized lens.
62GF Score

Get the complete analysis for ROCO:1813

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

NT$11.35
Price
NT$15.53
GF Value