Welldone Co (ROCO:6170) Cyclically Adjusted Book per Share: NT$17.40 (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:6170 Welldone Co Ltd ROCO:6170
75 GF Score
Price NT$46.55
GF Value NT$57.09
Valuation Modestly Undervalued
! 2 Warning Signs
View Full Analysis

What is Welldone Co Cyclically Adjusted Book per Share?

Welldone Co ROCO:6170 -1.38% 75 Cyclically Adjusted Book per Share is NT$17.40 as of Dec. 2025. GuruFocus rates ROCO:6170 with a GF Score™ of 75/100 and a GF Value™ of NT$57.09 (Modestly Undervalued). The stock has 2 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.

Welldone Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$21.903. 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$17.40 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Welldone Co's average Cyclically Adjusted Book Growth Rate was 4.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 4.30% 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 Welldone Co was 4.70% per year. The lowest was 3.90% per year. And the median was 4.00% per year.

As of today (2026-07-18), Welldone Co's current stock price is NT$46.55. Welldone Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$17.40. Welldone Co's Cyclically Adjusted PB Ratio of today is 2.68.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Welldone Co was 3.95. The lowest was 0.85. And the median was 2.68.


Welldone Co  (ROCO:6170) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=46.55/17.40
=2.68

* 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 Welldone Co was 3.95. The lowest was 0.85. And the median was 2.68.


Be Aware

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


Welldone Co Cyclically Adjusted Book per Share Related Terms


Welldone Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Welldone 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.

Welldone Co Cyclically Adjusted Book per Share Chart

Welldone 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 14.84 15.53 16.08 16.73 17.40

Welldone 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 16.73 16.96 17.15 17.34 17.40

ROCO:6170 vs TMUS, VZ, T: Cyclically Adjusted Book per Share Comparison

For the Telecom Services subindustry, Welldone 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.


Welldone Co Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, Welldone Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ROCO:6170
75GF Score
Welldone Co Ltd ROCO:6170
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Welldone 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, Welldone 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)
=21.903/324.0540*324.0540
=21.903

Current CPI (Dec. 2025) = 324.0540.

Welldone Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 13.173 238.132 17.926
201606 12.567 241.018 16.897
201609 12.591 241.428 16.900
201612 12.858 241.432 17.258
201703 12.730 243.801 16.920
201706 12.606 244.955 16.677
201709 12.629 246.819 16.581
201712 12.682 246.524 16.670
201803 12.673 249.554 16.456
201806 12.586 251.989 16.185
201809 12.299 252.439 15.788
201812 12.423 251.233 16.024
201903 12.558 254.202 16.009
201906 12.739 256.143 16.116
201909 13.079 256.759 16.507
201912 13.279 256.974 16.745
202003 13.520 258.115 16.974
202006 12.975 257.797 16.310
202009 13.884 260.280 17.286
202012 14.244 260.474 17.721
202103 13.542 264.877 16.567
202106 13.770 271.696 16.424
202109 14.126 274.310 16.688
202112 14.968 278.802 17.397
202203 14.007 287.504 15.788
202206 15.020 296.311 16.426
202209 15.664 296.808 17.102
202212 16.003 296.797 17.473
202303 14.552 301.836 15.623
202306 15.404 305.109 16.360
202309 19.273 307.789 20.291
202312 19.398 306.746 20.493
202403 17.565 312.332 18.224
202406 18.006 314.175 18.572
202409 18.487 315.301 19.000
202412 20.017 315.605 20.553
202503 17.903 319.799 18.141
202506 18.700 322.561 18.787
202509 20.358 324.800 20.311
202512 21.903 324.054 21.903

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$17.40 mean?
Welldone Co (ROCO:6170) has a Cyclically Adjusted Book per Share of NT$17.40 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 Welldone Co and its competitors.
Is Welldone Co's Cyclically Adjusted Book per Share too high?
Welldone Co's current Cyclically Adjusted Book per Share is NT$17.40. Overall, Welldone Co has a GF Score™ of 75/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Welldone Co's Cyclically Adjusted Book per Share compare to TMUS and VZ?
Welldone Co's Cyclically Adjusted Book per Share of NT$17.40 can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good Cyclically Adjusted Book per Share depends on the Telecommunication Services 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 Welldone Co and its competitors. Welldone Co's current Cyclically Adjusted Book per Share is NT$17.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Welldone Co stock overvalued right now?
Based on GuruFocus' analysis, Welldone Co (ROCO:6170) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$57.09, compared to a current price of NT$46.55 — trading 18.5% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$17.40. Welldone Co's overall GF Score™ is 75/100 with 2 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 Welldone Co (ROCO:6170), the current Cyclically Adjusted Book per Share is NT$17.40 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 Welldone Co (ROCO:6170) Overvalued in 2026?

Based on GuruFocus' analysis, Welldone Co stock appears to be undervalued. The current stock price of NT$46.55 is trading 18.5% below its estimated GF Value™ of NT$57.09. GuruFocus considers Welldone Co to be Modestly Undervalued.

Key valuation signals for ROCO:6170:

  • Cyclically Adjusted Book per Share: NT$17.40
  • GF Value™: NT$57.09 vs. price of NT$46.55 (18.5% below fair value)
  • GF Score™: 75/100 with 2 warning signs

No single metric tells the full story. See the ROCO:6170 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Welldone Co Business Description

Address No 181, Anmei Street, Neihu District, Taipei, TWN, 11484
Welldone Co Ltd is engaged in the selling and distribution of OK prepaid SIM cards, telecommunication, foreign worker agency services, and remittance services for foreign workers.
75GF Score

Get the complete analysis for ROCO:6170

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

NT$46.55
Price
NT$57.09
GF Value