Deltamac (Taiwan) Co (ROCO:6144) Cyclically Adjusted Book per Share: NT$12.24 (As of Dec. 2025)

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Director of Data and Quant Analytics at GuruFocus
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ROCO:6144 Deltamac (Taiwan) Co Ltd ROCO:6144
62 GF Score
Price NT$13.85
GF Value NT$18.65
Valuation Modestly Undervalued
! 2 Warning Signs
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What is Deltamac (Taiwan) Co Cyclically Adjusted Book per Share?

Deltamac (Taiwan) Co ROCO:6144 -1.07% 62 Cyclically Adjusted Book per Share is NT$12.24 as of Dec. 2025. GuruFocus rates ROCO:6144 with a GF Score™ of 62/100 and a GF Value™ of NT$18.65 (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.

Deltamac (Taiwan) Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$7.968. 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$12.24 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Deltamac (Taiwan) Co's average Cyclically Adjusted Book Growth Rate was -5.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -4.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -1.80% 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 Deltamac (Taiwan) Co was 0.80% per year. The lowest was -4.00% per year. And the median was -0.90% per year.

As of today (2026-07-22), Deltamac (Taiwan) Co's current stock price is NT$13.85. Deltamac (Taiwan) Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$12.24. Deltamac (Taiwan) Co's Cyclically Adjusted PB Ratio of today is 1.13.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Deltamac (Taiwan) Co was 9.10. The lowest was 0.81. And the median was 1.10.


Deltamac (Taiwan) Co  (ROCO:6144) 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.

Deltamac (Taiwan) Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=13.85/12.24
=1.13

* 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 Deltamac (Taiwan) Co was 9.10. The lowest was 0.81. And the median was 1.10.


Be Aware

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


Deltamac (Taiwan) Co Cyclically Adjusted Book per Share Related Terms


Deltamac (Taiwan) Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Deltamac (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.

Deltamac (Taiwan) Co Cyclically Adjusted Book per Share Chart

Deltamac (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 13.71 13.85 13.42 12.90 12.24

Deltamac (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 12.90 12.82 12.69 12.53 12.24

ROCO:6144 vs NFLX, DIS, WBD: Cyclically Adjusted Book per Share Comparison

For the Entertainment subindustry, Deltamac (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.


Deltamac (Taiwan) Co Cyclically Adjusted PB Ratio vs Media - Diversified Industry

For the Media - Diversified industry and Communication Services sector, Deltamac (Taiwan) Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ROCO:6144
62GF Score
Deltamac (Taiwan) Co Ltd ROCO:6144
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Deltamac (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, Deltamac (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)
=7.968/324.0540*324.0540
=7.968

Current CPI (Dec. 2025) = 324.0540.

Deltamac (Taiwan) Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 13.276 238.132 18.066
201606 13.102 241.018 17.616
201609 13.016 241.428 17.471
201612 12.284 241.432 16.488
201703 11.980 243.801 15.924
201706 12.039 244.955 15.927
201709 12.138 246.819 15.936
201712 12.210 246.524 16.050
201803 11.997 249.554 15.578
201806 11.917 251.989 15.325
201809 11.841 252.439 15.200
201812 11.456 251.233 14.777
201903 11.147 254.202 14.210
201906 10.231 256.143 12.944
201909 10.280 256.759 12.974
201912 10.009 256.974 12.622
202003 10.019 258.115 12.578
202006 9.885 257.797 12.426
202009 9.861 260.280 12.277
202012 10.097 260.474 12.562
202103 10.064 264.877 12.312
202106 9.786 271.696 11.672
202109 9.618 274.310 11.362
202112 9.356 278.802 10.875
202203 9.359 287.504 10.549
202206 9.313 296.311 10.185
202209 9.317 296.808 10.172
202212 9.228 296.797 10.075
202303 9.084 301.836 9.753
202306 8.952 305.109 9.508
202309 8.866 307.789 9.335
202312 8.795 306.746 9.291
202403 8.686 312.332 9.012
202406 8.568 314.175 8.837
202409 8.536 315.301 8.773
202412 8.197 315.605 8.416
202503 8.163 319.799 8.272
202506 8.137 322.561 8.175
202509 8.091 324.800 8.072
202512 7.968 324.054 7.968

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$12.24 mean?
Deltamac (Taiwan) Co (ROCO:6144) has a Cyclically Adjusted Book per Share of NT$12.24 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 Deltamac (Taiwan) Co and its competitors.
Is Deltamac (Taiwan) Co's Cyclically Adjusted Book per Share too high?
Deltamac (Taiwan) Co's current Cyclically Adjusted Book per Share is NT$12.24. Overall, Deltamac (Taiwan) Co has a GF Score™ of 62/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Deltamac (Taiwan) Co's Cyclically Adjusted Book per Share compare to NFLX and DIS?
Deltamac (Taiwan) Co's Cyclically Adjusted Book per Share of NT$12.24 can be compared against companies in the Media - Diversified 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 Media - Diversified company?
A good Cyclically Adjusted Book per Share depends on the Media - Diversified 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 Deltamac (Taiwan) Co and its competitors. Deltamac (Taiwan) Co's current Cyclically Adjusted Book per Share is NT$12.24. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Deltamac (Taiwan) Co stock overvalued right now?
Based on GuruFocus' analysis, Deltamac (Taiwan) Co (ROCO:6144) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$18.65, compared to a current price of NT$13.85 — trading 25.7% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$12.24. Deltamac (Taiwan) Co's overall GF Score™ is 62/100 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 Deltamac (Taiwan) Co (ROCO:6144), the current Cyclically Adjusted Book per Share is NT$12.24 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 Deltamac (Taiwan) Co (ROCO:6144) Overvalued in 2026?

Based on GuruFocus' analysis, Deltamac (Taiwan) Co stock appears to be undervalued. The current stock price of NT$13.85 is trading 25.7% below its estimated GF Value™ of NT$18.65. GuruFocus considers Deltamac (Taiwan) Co to be Modestly Undervalued.

Key valuation signals for ROCO:6144:

  • Cyclically Adjusted Book per Share: NT$12.24
  • GF Value™: NT$18.65 vs. price of NT$13.85 (25.7% below fair value)
  • GF Score™: 62/100 with 2 warning signs

No single metric tells the full story. See the ROCO:6144 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Deltamac (Taiwan) Co Business Description

Address No. 53, Minquan West Road, 10th Floor, Zhongshan District, Taipei, TWN, 103
Deltamac (Taiwan) Co Ltd is currently the distribution company of DVD-Video, Blu-ray Disc and 4K Ultra-HD (UHD) discs in Taiwan. ) The Group's main businesses included productions and sales of video products, additionally sales of books and stationery, also the company provides services of offering foods, drinks and desserts. Its geographical segments include Taiwan. The company derives the majority of revenue from Taiwan. It generates maximum revenue from sales of video products.
62GF Score

Get the complete analysis for ROCO:6144

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

NT$13.85
Price
NT$18.65
GF Value