Polylite Taiwan Co (ROCO:1813) Cyclically Adjusted Book per Share: NT$21.97 (As of Dec. 2025)

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ROCO:1813 Polylite Taiwan Co Ltd ROCO:1813
60 GF Score
Price NT$11.90
GF Value NT$16.53
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Polylite Taiwan Co Cyclically Adjusted Book per Share?

Polylite Taiwan Co ROCO:1813 -0.42% 60 Cyclically Adjusted Book per Share is NT$21.97 as of Dec. 2025. GuruFocus rates ROCO:1813 with a GF Score™ of 60/100 and a GF Value™ of NT$16.53 (Modestly Undervalued). The stock has 3 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Polylite Taiwan Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$14.679. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is NT$21.97 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Polylite Taiwan Co's average Cyclically Adjusted Book Growth Rate was -3.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -2.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 0.70% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Polylite Taiwan Co was 3.70% per year. The lowest was -2.10% per year. And the median was 1.90% per year.

As of today (2026-07-16), Polylite Taiwan Co's current stock price is NT$11.90. Polylite Taiwan Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$21.97. Polylite Taiwan Co's Cyclically Adjusted PB Ratio of today is 0.54.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Polylite Taiwan Co was 1.46. The lowest was 0.54. And the median was 0.86.


Polylite Taiwan Co  (ROCO:1813) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Polylite Taiwan Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=11.90/21.97
=0.54

* 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 Cyclically Adjusted PB Ratio of Polylite Taiwan Co was 1.46. The lowest was 0.54. And the median was 0.86.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Polylite Taiwan Co Cyclically Adjusted Book per Share Related Terms


Polylite Taiwan Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Polylite Taiwan Co's Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share Chart

Polylite Taiwan Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 22.41 23.42 23.22 22.78 21.97

Polylite Taiwan Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Cyclically Adjusted Book per Share 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 22.78 22.75 22.61 22.41 21.97

ROCO:1813 vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Polylite Taiwan Co's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

* The bar in red indicates where Polylite Taiwan Co's Cyclically Adjusted PB Ratio falls into.


ROCO:1813
60GF Score
Polylite Taiwan Co Ltd ROCO:1813
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Polylite Taiwan Co Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

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 Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=14.679/324.0540*324.0540
=14.679

Current CPI (Dec. 2025) = 324.0540.

Polylite Taiwan Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 22.281 238.132 30.320
201606 20.730 241.018 27.872
201609 20.884 241.428 28.031
201612 21.039 241.432 28.239
201703 20.820 243.801 27.673
201706 20.033 244.955 26.502
201709 20.092 246.819 26.379
201712 19.800 246.524 26.027
201803 19.996 249.554 25.965
201806 19.850 251.989 25.527
201809 20.049 252.439 25.737
201812 20.327 251.233 26.219
201903 20.783 254.202 26.494
201906 19.077 256.143 24.135
201909 19.397 256.759 24.481
201912 19.171 256.974 24.175
202003 19.487 258.115 24.465
202006 18.134 257.797 22.795
202009 18.106 260.280 22.542
202012 18.155 260.474 22.587
202103 18.126 264.877 22.176
202106 17.934 271.696 21.390
202109 17.911 274.310 21.159
202112 17.449 278.802 20.281
202203 17.819 287.504 20.084
202206 17.603 296.311 19.251
202209 18.076 296.808 19.735
202212 17.411 296.797 19.010
202303 16.997 301.836 18.248
202306 17.252 305.109 18.323
202309 17.602 307.789 18.532
202312 16.617 306.746 17.555
202403 17.018 312.332 17.657
202406 16.281 314.175 16.793
202409 16.121 315.301 16.569
202412 15.519 315.605 15.934
202503 15.561 319.799 15.768
202506 14.767 322.561 14.835
202509 14.810 324.800 14.776
202512 14.679 324.054 14.679

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of NT$21.97 mean?
Polylite Taiwan Co (ROCO:1813) has a Cyclically Adjusted Book per Share of NT$21.97 as of Dec. 2025. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Polylite Taiwan Co and its competitors.
Is Polylite Taiwan Co's Cyclically Adjusted Book per Share too high?
Polylite Taiwan Co's current Cyclically Adjusted Book per Share is NT$21.97. Overall, Polylite Taiwan Co has a GF Score™ of 60/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Polylite Taiwan Co's Cyclically Adjusted Book per Share compare to NVDA and AVGO?
Polylite Taiwan Co's Cyclically Adjusted Book per Share of NT$21.97 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 Cyclically Adjusted Book per Share for a Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Polylite Taiwan Co and its competitors. Polylite Taiwan Co's current Cyclically Adjusted Book per Share is NT$21.97. 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$16.53, compared to a current price of NT$11.90 — trading 28% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$21.97. Polylite Taiwan Co's overall GF Score™ is 60/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Polylite Taiwan Co (ROCO:1813), the current Cyclically Adjusted Book per Share is NT$21.97 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 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$11.90 is trading 28% below its estimated GF Value™ of NT$16.53. GuruFocus considers Polylite Taiwan Co to be Modestly Undervalued.

Key valuation signals for ROCO:1813:

  • Cyclically Adjusted Book per Share: NT$21.97
  • GF Value™: NT$16.53 vs. price of NT$11.90 (28% below fair value)
  • GF Score™: 60/100 with 3 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.
60GF Score

Get the complete analysis for ROCO:1813

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$11.90
Price
NT$16.53
GF Value