Ruentex Materials Co (TPE:8463) Cyclically Adjusted Book per Share: NT$18.32 (As of Dec. 2025)


TPE:8463 Ruentex Materials Co Ltd TPE:8463
79 GF Score
Price NT$21.55
GF Value NT$35.71
Valuation Possible Value Trap
! 5 Warning Signs
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What is Ruentex Materials Co Cyclically Adjusted Book per Share?

Ruentex Materials Co TPE:8463 +0.70% 79 Cyclically Adjusted Book per Share is NT$18.32 as of Dec. 2025. GuruFocus rates TPE:8463 with a GF Score™ of 79/100 and a GF Value™ of NT$35.71 (Possible Value Trap). The stock has 5 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.

Ruentex Materials Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$16.500. 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$18.32 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Ruentex Materials Co's average Cyclically Adjusted Book Growth Rate was 0.50% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

As of today (2026-07-06), Ruentex Materials Co's current stock price is NT$21.55. Ruentex Materials Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$18.32. Ruentex Materials Co's Cyclically Adjusted PB Ratio of today is 1.18.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Ruentex Materials Co was 1.76. The lowest was 1.15. And the median was 1.39.


Ruentex Materials Co  (TPE:8463) 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.

Ruentex Materials Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=21.55/18.32
=1.18

* 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 Ruentex Materials Co was 1.76. The lowest was 1.15. And the median was 1.39.


Be Aware

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


Ruentex Materials Co Cyclically Adjusted Book per Share Related Terms


Ruentex Materials Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Ruentex Materials 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.

Ruentex Materials Co Cyclically Adjusted Book per Share Chart

Ruentex Materials 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 0.00 0.00 17.90 18.23 18.32

Ruentex Materials 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 18.23 18.38 18.49 18.49 18.32

TPE:8463 vs CRH, VMC, MLM: Cyclically Adjusted Book per Share Comparison

For the Building Materials subindustry, Ruentex Materials 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.


Ruentex Materials Co Cyclically Adjusted PB Ratio vs Building Materials Industry

For the Building Materials industry and Basic Materials sector, Ruentex Materials Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TPE:8463
79GF Score
Ruentex Materials Co Ltd TPE:8463
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ruentex Materials 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, Ruentex Materials 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)
=16.5/324.0540*324.0540
=16.500

Current CPI (Dec. 2025) = 324.0540.

Ruentex Materials Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 15.906 238.132 21.645
201606 15.271 241.018 20.532
201609 15.613 241.428 20.956
201612 16.027 241.432 21.512
201703 16.089 243.801 21.385
201706 15.184 244.955 20.087
201709 15.351 246.819 20.155
201712 15.795 246.524 20.762
201803 15.927 249.554 20.682
201806 15.300 251.989 19.676
201809 15.456 252.439 19.841
201812 15.747 251.233 20.311
201903 15.855 254.202 20.212
201906 15.143 256.143 19.158
201909 15.332 256.759 19.350
201912 15.591 256.974 19.661
202003 15.263 258.115 19.162
202006 15.030 257.797 18.893
202009 15.477 260.280 19.269
202012 15.958 260.474 19.853
202103 16.193 264.877 19.811
202106 14.921 271.696 17.796
202109 15.127 274.310 17.870
202112 14.956 278.802 17.383
202203 14.930 287.504 16.828
202206 14.010 296.311 15.322
202209 13.714 296.808 14.973
202212 14.710 296.797 16.061
202303 14.294 301.836 15.346
202306 14.527 305.109 15.429
202309 14.700 307.789 15.477
202312 15.208 306.746 16.066
202403 15.319 312.332 15.894
202406 15.748 314.175 16.243
202409 16.706 315.301 17.170
202412 16.690 315.605 17.137
202503 16.136 319.799 16.351
202506 15.483 322.561 15.555
202509 16.347 324.800 16.309
202512 16.500 324.054 16.500

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$18.32 mean?
Ruentex Materials Co (TPE:8463) has a Cyclically Adjusted Book per Share of NT$18.32 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 Ruentex Materials Co and its competitors.
Is Ruentex Materials Co's Cyclically Adjusted Book per Share too high?
Ruentex Materials Co's current Cyclically Adjusted Book per Share is NT$18.32. Overall, Ruentex Materials Co has a GF Score™ of 79/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Ruentex Materials Co's Cyclically Adjusted Book per Share compare to CRH and VMC?
Ruentex Materials Co's Cyclically Adjusted Book per Share of NT$18.32 can be compared against companies in the Building Materials 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 Building Materials company?
A good Cyclically Adjusted Book per Share depends on the Building Materials 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 Ruentex Materials Co and its competitors. Ruentex Materials Co's current Cyclically Adjusted Book per Share is NT$18.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ruentex Materials Co stock overvalued right now?
Based on GuruFocus' analysis, Ruentex Materials Co (TPE:8463) is currently considered Possible Value Trap. The stock's GF Value™ is NT$35.71, compared to a current price of NT$21.55 — trading 39.7% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$18.32. Ruentex Materials Co's overall GF Score™ is 79/100 with 5 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 Ruentex Materials Co (TPE:8463), the current Cyclically Adjusted Book per Share is NT$18.32 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 Ruentex Materials Co (TPE:8463) Overvalued in 2026?

Based on GuruFocus' analysis, Ruentex Materials Co stock appears to be undervalued. The current stock price of NT$21.55 is trading 39.7% below its estimated GF Value™ of NT$35.71. GuruFocus considers Ruentex Materials Co to be Possible Value Trap.

Key valuation signals for TPE:8463:

  • Cyclically Adjusted Book per Share: NT$18.32
  • GF Value™: NT$35.71 vs. price of NT$21.55 (39.7% below fair value)
  • GF Score™: 79/100 with 5 warning signs

No single metric tells the full story. See the TPE:8463 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Ruentex Materials Co Business Description

Address No. 308, Section 2, Bade Road, 10th Floor, Taipei, TWN
Ruentex Materials Co Ltd is engaged in the manufacturing and sale of semi-finished cement products. The company is also engaged in mining, manufacturing, and distribution of cement raw materials and mining and distribution of mineral ore, quarrying, building materials development, manufacture, and distribution, manufacture, and sale of clay used for wall primer, powder coating material, tile adhesive, self-leveling cement, and dry-mixed cement mortar applications The product portfolio of the company includes Portland blast furnace cement, Portland cement, Hearthstone powder. The company's revenue is mainly from three lines of business such as Cement business, Construction materials business, and Engineering and construction business.
79GF Score

Get the complete analysis for TPE:8463

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

NT$21.55
Price
NT$35.71
GF Value