CastleNet Technology (ROCO:8059) Cyclically Adjusted Book per Share: NT$10.95 (As of Dec. 2025)

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ROCO:8059 CastleNet Technology Inc ROCO:8059
52 GF Score
Price NT$16.90
GF Value NT$365.62
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is CastleNet Technology Cyclically Adjusted Book per Share?

CastleNet Technology ROCO:8059 +1.81% 52 Cyclically Adjusted Book per Share is NT$10.95 as of Dec. 2025. GuruFocus rates ROCO:8059 with a GF Score™ of 52/100 and a GF Value™ of NT$365.62 (Possible Value Trap). The stock has 7 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.

CastleNet Technology's adjusted book value per share for the three months ended in Dec. 2025 was NT$5.758. 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$10.95 for the trailing ten years ended in Dec. 2025.

During the past 12 months, CastleNet Technology's average Cyclically Adjusted Book Growth Rate was -5.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -1.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 1.20% 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 CastleNet Technology was 3.80% per year. The lowest was -1.60% per year. And the median was 2.65% per year.

As of today (2026-07-16), CastleNet Technology's current stock price is NT$16.90. CastleNet Technology's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$10.95. CastleNet Technology's Cyclically Adjusted PB Ratio of today is 1.54.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of CastleNet Technology was 3.42. The lowest was 0.80. And the median was 1.33.


CastleNet Technology  (ROCO:8059) 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.

CastleNet Technology's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=16.90/10.95
=1.54

* 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 CastleNet Technology was 3.42. The lowest was 0.80. 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.


CastleNet Technology Cyclically Adjusted Book per Share Related Terms


CastleNet Technology Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for CastleNet Technology'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.

CastleNet Technology Cyclically Adjusted Book per Share Chart

CastleNet Technology 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 10.96 11.50 11.71 11.57 10.95

CastleNet Technology 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 11.57 11.52 11.37 11.20 10.95

ROCO:8059 vs CSCO, CIEN, MSI: Cyclically Adjusted Book per Share Comparison

For the Communication Equipment subindustry, CastleNet Technology'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.


CastleNet Technology Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, CastleNet Technology's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ROCO:8059
52GF Score
CastleNet Technology Inc ROCO:8059
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

CastleNet Technology 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, CastleNet Technology'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)
=5.758/324.0540*324.0540
=5.758

Current CPI (Dec. 2025) = 324.0540.

CastleNet Technology Quarterly Data

Book Value per Share CPI Adj_Book
201603 11.240 238.132 15.296
201606 10.450 241.018 14.050
201609 11.278 241.428 15.138
201612 11.117 241.432 14.921
201703 10.578 243.801 14.060
201706 9.863 244.955 13.048
201709 9.351 246.819 12.277
201712 8.608 246.524 11.315
201803 8.277 249.554 10.748
201806 7.779 251.989 10.004
201809 7.209 252.439 9.254
201812 6.811 251.233 8.785
201903 6.897 254.202 8.792
201906 6.893 256.143 8.721
201909 7.090 256.759 8.948
201912 10.480 256.974 13.216
202003 10.600 258.115 13.308
202006 10.503 257.797 13.202
202009 10.514 260.280 13.090
202012 10.514 260.474 13.080
202103 10.348 264.877 12.660
202106 10.016 271.696 11.946
202109 9.779 274.310 11.552
202112 9.768 278.802 11.353
202203 9.670 287.504 10.899
202206 9.636 296.311 10.538
202209 9.770 296.808 10.667
202212 9.904 296.797 10.814
202303 10.187 301.836 10.937
202306 10.202 305.109 10.835
202309 10.210 307.789 10.750
202312 9.981 306.746 10.544
202403 9.983 312.332 10.358
202406 9.737 314.175 10.043
202409 9.417 315.301 9.678
202412 8.191 315.605 8.410
202503 7.641 319.799 7.743
202506 5.614 322.561 5.640
202509 5.484 324.800 5.471
202512 5.758 324.054 5.758

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$10.95 mean?
CastleNet Technology (ROCO:8059) has a Cyclically Adjusted Book per Share of NT$10.95 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 CastleNet Technology and its competitors.
Is CastleNet Technology's Cyclically Adjusted Book per Share too high?
CastleNet Technology's current Cyclically Adjusted Book per Share is NT$10.95. Overall, CastleNet Technology has a GF Score™ of 52/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does CastleNet Technology's Cyclically Adjusted Book per Share compare to CSCO and CIEN?
CastleNet Technology's Cyclically Adjusted Book per Share of NT$10.95 can be compared against companies in the Hardware 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 Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware 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 CastleNet Technology and its competitors. CastleNet Technology's current Cyclically Adjusted Book per Share is NT$10.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CastleNet Technology stock overvalued right now?
Based on GuruFocus' analysis, CastleNet Technology (ROCO:8059) is currently considered Possible Value Trap. The stock's GF Value™ is NT$365.62, compared to a current price of NT$16.90 — trading 95.4% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$10.95. CastleNet Technology's overall GF Score™ is 52/100 with 7 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 CastleNet Technology (ROCO:8059), the current Cyclically Adjusted Book per Share is NT$10.95 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 CastleNet Technology (ROCO:8059) Overvalued in 2026?

Based on GuruFocus' analysis, CastleNet Technology stock appears to be undervalued. The current stock price of NT$16.90 is trading 95.4% below its estimated GF Value™ of NT$365.62. GuruFocus considers CastleNet Technology to be Possible Value Trap.

Key valuation signals for ROCO:8059:

  • Cyclically Adjusted Book per Share: NT$10.95
  • GF Value™: NT$365.62 vs. price of NT$16.90 (95.4% below fair value)
  • GF Score™: 52/100 with 7 warning signs

No single metric tells the full story. See the ROCO:8059 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


CastleNet Technology Business Description

Address No. 14, Beishen Road, Ln. 141, Sec. 3, Shenkeng District, New Taipei City, TWN, 222004
CastleNet Technology Inc is a manufacturer of network communication equipment in Taiwan. It is predominantly engaged in the manufacturing and selling of consumer electronics products such as broadband communications and digital home entertainment. It offers products like EMTA Gateway, Data Gateway, Data Modem, and WiFi Mesh System among others. Geographically, the company generates a majority of its revenue from America followed by Asia, Europe, and Oceania.
52GF Score

Get the complete analysis for ROCO:8059

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

NT$16.90
Price
NT$365.62
GF Value