Ta-Yuan Cogeneration Co (ROCO:8931) Cyclically Adjusted Book per Share: NT$18.89 (As of Jun. 2026)

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ROCO:8931 Ta-Yuan Cogeneration Co Ltd ROCO:8931
79 GF Score
Price NT$41.10
GF Value NT$49.00
Valuation Modestly Undervalued
! 10 Warning Signs
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What is Ta-Yuan Cogeneration Co Cyclically Adjusted Book per Share?

Ta-Yuan Cogeneration Co ROCO:8931 -0.12% 79 Cyclically Adjusted Book per Share is NT$18.89 as of Jun. 2026. GuruFocus rates ROCO:8931 with a GF Score™ of 79/100 and a GF Value™ of NT$49.00 (Modestly Undervalued). The stock has 10 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.

Ta-Yuan Cogeneration Co's adjusted book value per share for the three months ended in Jun. 2026 was NT$16.158. 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$18.89 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Ta-Yuan Cogeneration Co's average Cyclically Adjusted Book Growth Rate was 2.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 4.90% 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 Ta-Yuan Cogeneration Co was 6.70% per year. The lowest was 3.00% per year. And the median was 5.40% per year.

As of today (2026-08-31), Ta-Yuan Cogeneration Co's current stock price is NT$41.10. Ta-Yuan Cogeneration Co's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was NT$18.89. Ta-Yuan Cogeneration Co's Cyclically Adjusted PB Ratio of today is 2.18.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Ta-Yuan Cogeneration Co was 4.55. The lowest was 1.71. And the median was 2.26.


Ta-Yuan Cogeneration Co  (ROCO:8931) 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.

Ta-Yuan Cogeneration Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=41.10/18.89
=2.18

* 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 Ta-Yuan Cogeneration Co was 4.55. The lowest was 1.71. And the median was 2.26.


Be Aware

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


Ta-Yuan Cogeneration Co Cyclically Adjusted Book per Share Related Terms


Ta-Yuan Cogeneration Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Ta-Yuan Cogeneration 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.

Ta-Yuan Cogeneration Co Cyclically Adjusted Book per Share Chart

Ta-Yuan Cogeneration 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 15.74 16.87 17.56 18.07 18.42

Ta-Yuan Cogeneration Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 18.42 18.51 18.42 18.73 18.89

ROCO:8931 vs NEE, SO, DUK: Cyclically Adjusted Book per Share Comparison

For the Utilities - Regulated Electric subindustry, Ta-Yuan Cogeneration 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.


Ta-Yuan Cogeneration Co Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Ta-Yuan Cogeneration Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Ta-Yuan Cogeneration Co's Cyclically Adjusted PB Ratio falls into.


ROCO:8931
79GF Score
Ta-Yuan Cogeneration Co Ltd ROCO:8931
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Ta-Yuan Cogeneration 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, Ta-Yuan Cogeneration Co's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=16.158/333.9520*333.9520
=16.158

Current CPI (Jun. 2026) = 333.9520.

Ta-Yuan Cogeneration Co Quarterly Data

Book Value per Share CPI Adj_Book
201609 13.455 241.428 18.611
201612 13.714 241.432 18.969
201703 13.731 243.801 18.808
201706 13.219 244.955 18.022
201709 13.878 246.819 18.777
201712 14.781 246.524 20.023
201803 14.827 249.554 19.841
201806 13.875 251.989 18.388
201809 14.462 252.439 19.132
201812 14.385 251.233 19.121
201903 14.665 254.202 19.266
201906 14.270 256.143 18.605
201909 14.604 256.759 18.995
201912 14.901 256.974 19.365
202003 15.294 258.115 19.788
202006 14.486 257.797 18.765
202009 15.307 260.280 19.640
202012 16.276 260.474 20.867
202103 16.617 264.877 20.950
202106 17.742 271.696 21.807
202109 16.563 274.310 20.164
202112 16.719 278.802 20.026
202203 16.796 287.504 19.509
202206 15.148 296.311 17.072
202209 16.564 296.808 18.637
202212 17.808 296.797 20.037
202303 18.652 301.836 20.637
202306 16.884 305.109 18.480
202309 17.246 307.789 18.712
202312 17.761 306.746 19.336
202403 18.108 312.332 19.361
202406 16.545 314.175 17.586
202409 16.829 315.301 17.824
202412 16.872 315.605 17.853
202503 17.583 319.799 18.361
202506 16.159 322.561 16.730
202509 16.550 324.800 17.016
202512 16.567 324.054 17.073
202603 17.179 330.213 17.374
202606 16.158 333.952 16.158

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$18.89 mean?
Ta-Yuan Cogeneration Co (ROCO:8931) has a Cyclically Adjusted Book per Share of NT$18.89 as of Jun. 2026. 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 Ta-Yuan Cogeneration Co and its competitors.
Is Ta-Yuan Cogeneration Co's Cyclically Adjusted Book per Share too high?
Ta-Yuan Cogeneration Co's current Cyclically Adjusted Book per Share is NT$18.89. Overall, Ta-Yuan Cogeneration Co has a GF Score™ of 79/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ta-Yuan Cogeneration Co's Cyclically Adjusted Book per Share compare to NEE and SO?
Ta-Yuan Cogeneration Co's Cyclically Adjusted Book per Share of NT$18.89 can be compared against companies in the Utilities - Regulated 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 an Utilities - Regulated company?
A good Cyclically Adjusted Book per Share depends on the Utilities - Regulated 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 Ta-Yuan Cogeneration Co and its competitors. Ta-Yuan Cogeneration Co's current Cyclically Adjusted Book per Share is NT$18.89. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ta-Yuan Cogeneration Co stock overvalued right now?
Based on GuruFocus' analysis, Ta-Yuan Cogeneration Co (ROCO:8931) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$49.00, compared to a current price of NT$41.10 — trading 16.1% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$18.89. Ta-Yuan Cogeneration Co's overall GF Score™ is 79/100 with 10 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 Ta-Yuan Cogeneration Co (ROCO:8931), the current Cyclically Adjusted Book per Share is NT$18.89 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 Ta-Yuan Cogeneration Co (ROCO:8931) Overvalued in 2026?

Based on GuruFocus' analysis, Ta-Yuan Cogeneration Co stock appears to be undervalued. The current stock price of NT$41.10 is trading 16.1% below its estimated GF Value™ of NT$49.00. GuruFocus considers Ta-Yuan Cogeneration Co to be Modestly Undervalued.

Key valuation signals for ROCO:8931:

  • Cyclically Adjusted Book per Share: NT$18.89
  • GF Value™: NT$49.00 vs. price of NT$41.10 (16.1% below fair value)
  • GF Score™: 79/100 with 10 warning signs

No single metric tells the full story. See the ROCO:8931 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Ta-Yuan Cogeneration Co Business Description

Address Chaoyin North Road, No. 276, Dayuan District, Taoyuan, TWN
Ta-Yuan Cogeneration Co Ltd engages mainly in operating the cogeneration business, operating and repairing equipment, processing waste disposal, managing incinerators, and processing refuse-derived fuel. It is involved in the operation, management, and maintenance of cogeneration plants, as well as waste disposal and incinerator management. Through the development of cogeneration, the company focuses on supplying power to industrial areas and balancing peak and off-peak electricity demand. The company's reportable segments are: Plant of Cogeneration, which generates the maximum revenue, and Plant of Renewable Energy. Geographically, it operates only in Taiwan.
79GF Score

Get the complete analysis for ROCO:8931

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

NT$41.10
Price
NT$49.00
GF Value