Polygreen Resources Co (ROCO:8423) Cyclically Adjusted Book per Share: NT$13.29 (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:8423 Polygreen Resources Co Ltd ROCO:8423
75 GF Score
Price NT$17.60
GF Value NT$16.17
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is Polygreen Resources Co Cyclically Adjusted Book per Share?

Polygreen Resources Co ROCO:8423 -0.56% 75 Cyclically Adjusted Book per Share is NT$13.29 as of Dec. 2025. GuruFocus rates ROCO:8423 with a GF Score™ of 75/100 and a GF Value™ of NT$16.17 (Fairly Valued). 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.

Polygreen Resources Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$14.863. 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$13.29 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Polygreen Resources Co's average Cyclically Adjusted Book Growth Rate was 3.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 5.10% 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 Polygreen Resources Co was 6.50% per year. The lowest was 3.40% per year. And the median was 4.40% per year.

As of today (2026-07-17), Polygreen Resources Co's current stock price is NT$17.60. Polygreen Resources Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$13.29. Polygreen Resources Co's Cyclically Adjusted PB Ratio of today is 1.32.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Polygreen Resources Co was 2.08. The lowest was 1.14. And the median was 1.33.


Polygreen Resources Co  (ROCO:8423) 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.

Polygreen Resources Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=17.60/13.29
=1.32

* 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 Polygreen Resources Co was 2.08. The lowest was 1.14. And the median was 1.33.


Be Aware

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


Polygreen Resources Co Cyclically Adjusted Book per Share Related Terms


Polygreen Resources Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Polygreen Resources 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.

Polygreen Resources Co Cyclically Adjusted Book per Share Chart

Polygreen Resources 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 11.25 12.01 12.36 12.81 13.29

Polygreen Resources 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 12.81 13.01 13.15 13.28 13.29

ROCO:8423 vs ORLY, AZO: Cyclically Adjusted Book per Share Comparison

For the Auto Parts subindustry, Polygreen Resources 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.


Polygreen Resources Co Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Polygreen Resources Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ROCO:8423
75GF Score
Polygreen Resources Co Ltd ROCO:8423
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Polygreen Resources 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, Polygreen Resources 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)
=14.863/324.0540*324.0540
=14.863

Current CPI (Dec. 2025) = 324.0540.

Polygreen Resources Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 9.536 238.132 12.977
201606 9.074 241.018 12.200
201609 8.759 241.428 11.757
201612 8.800 241.432 11.812
201703 8.636 243.801 11.479
201706 8.931 244.955 11.815
201709 9.351 246.819 12.277
201712 9.646 246.524 12.680
201803 10.239 249.554 13.296
201806 10.100 251.989 12.988
201809 10.255 252.439 13.164
201812 10.777 251.233 13.901
201903 11.158 254.202 14.224
201906 10.751 256.143 13.601
201909 10.941 256.759 13.809
201912 11.020 256.974 13.897
202003 10.895 258.115 13.678
202006 10.441 257.797 13.124
202009 10.752 260.280 13.386
202012 11.075 260.474 13.778
202103 11.190 264.877 13.690
202106 11.165 271.696 13.317
202109 10.793 274.310 12.750
202112 11.004 278.802 12.790
202203 11.363 287.504 12.808
202206 11.303 296.311 12.361
202209 11.712 296.808 12.787
202212 11.992 296.797 13.093
202303 12.004 301.836 12.888
202306 11.779 305.109 12.510
202309 12.187 307.789 12.831
202312 12.194 306.746 12.882
202403 14.107 312.332 14.636
202406 13.986 314.175 14.426
202409 14.527 315.301 14.930
202412 14.480 315.605 14.868
202503 14.722 319.799 14.918
202506 13.906 322.561 13.970
202509 14.297 324.800 14.264
202512 14.863 324.054 14.863

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$13.29 mean?
Polygreen Resources Co (ROCO:8423) has a Cyclically Adjusted Book per Share of NT$13.29 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 Polygreen Resources Co and its competitors.
Is Polygreen Resources Co's Cyclically Adjusted Book per Share too high?
Polygreen Resources Co's current Cyclically Adjusted Book per Share is NT$13.29. Overall, Polygreen Resources Co has a GF Score™ of 75/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Polygreen Resources Co's Cyclically Adjusted Book per Share compare to ORLY and AZO?
Polygreen Resources Co's Cyclically Adjusted Book per Share of NT$13.29 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 Cyclically Adjusted Book per Share for a Vehicles & Parts company?
A good Cyclically Adjusted Book per Share depends on the Vehicles & Parts 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 Polygreen Resources Co and its competitors. Polygreen Resources Co's current Cyclically Adjusted Book per Share is NT$13.29. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Polygreen Resources Co stock overvalued right now?
Based on GuruFocus' analysis, Polygreen Resources Co (ROCO:8423) is currently considered Fairly Valued. The stock's GF Value™ is NT$16.17, compared to a current price of NT$17.60 — trading 8.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$13.29. Polygreen Resources Co's overall GF Score™ is 75/100 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 Polygreen Resources Co (ROCO:8423), the current Cyclically Adjusted Book per Share is NT$13.29 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 Polygreen Resources Co (ROCO:8423) Overvalued in 2026?

Based on GuruFocus' analysis, Polygreen Resources Co stock appears to be overvalued. The current stock price of NT$17.60 is trading 8.8% above its estimated GF Value™ of NT$16.17. GuruFocus considers Polygreen Resources Co to be Fairly Valued.

Key valuation signals for ROCO:8423:

  • Cyclically Adjusted Book per Share: NT$13.29
  • GF Value™: NT$16.17 vs. price of NT$17.60 (8.8% above fair value)
  • GF Score™: 75/100 with 3 warning signs

No single metric tells the full story. See the ROCO:8423 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Polygreen Resources Co Business Description

Address North Sound Road, Cannon Place, P.O. Box 712, Suite 102, Grand Cayman, CYM, KY1 9006
Polygreen Resources Co Ltd is engaged in the rubber recycling business, offering its products to manufacturers of the tire and conveyor belt industries. The company manufactures premium-quality reclaimed rubber, crumb rubber, and rubber granules. Its products include Rubber asphalt application, Reclaimed Rubber, Butyl Reclaimed Rubber, Crumb Rubber, and Tyre Chip. It has only one operating segment which focuses on the manufacturing and sales of reclaimed rubber. The company operates in Malaysia, Japan, Indonesia, Vietnam, Taiwan, and other countries, of which key revenue is derived from Malaysia.
75GF Score

Get the complete analysis for ROCO:8423

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

NT$17.60
Price
NT$16.17
GF Value