Ruby Tech (ROCO:8048) Cyclically Adjusted Book per Share: NT$19.96 (As of Jun. 2026)

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ROCO:8048 Ruby Tech Corp ROCO:8048
88 GF Score
Price NT$51.90
GF Value NT$51.72
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Ruby Tech Cyclically Adjusted Book per Share?

Ruby Tech ROCO:8048 88 Cyclically Adjusted Book per Share is NT$19.96 as of Jun. 2026. GuruFocus rates ROCO:8048 with a GF Score™ of 88/100 and a GF Value™ of NT$51.72 (Fairly Valued). 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.

Ruby Tech's adjusted book value per share for the three months ended in Jun. 2026 was NT$19.804. 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$19.96 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Ruby Tech's average Cyclically Adjusted Book Growth Rate was 4.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.80% 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 Ruby Tech was 9.90% per year. The lowest was 5.60% per year. And the median was 8.05% per year.

As of today (2026-08-19), Ruby Tech's current stock price is NT$51.90. Ruby Tech's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was NT$19.96. Ruby Tech's Cyclically Adjusted PB Ratio of today is 2.60.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Ruby Tech was 5.48. The lowest was 1.65. And the median was 2.34.


Ruby Tech  (ROCO:8048) 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.

Ruby Tech's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=51.90/19.96
=2.60

* 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 Ruby Tech was 5.48. The lowest was 1.65. And the median was 2.34.


Be Aware

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


Ruby Tech Cyclically Adjusted Book per Share Related Terms


Ruby Tech Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Ruby Tech'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.

Ruby Tech Cyclically Adjusted Book per Share Chart

Ruby Tech 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 14.91 16.39 17.61 18.63 19.32

Ruby Tech 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 19.18 19.34 19.32 19.69 19.96

ROCO:8048 vs CSCO, MSI, HPE: Cyclically Adjusted Book per Share Comparison

For the Communication Equipment subindustry, Ruby Tech'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.


Ruby Tech Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


ROCO:8048
88GF Score
Ruby Tech Corp ROCO:8048
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ruby Tech 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, Ruby Tech'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)
=19.804/333.9520*333.9520
=19.804

Current CPI (Jun. 2026) = 333.9520.

Ruby Tech Quarterly Data

Book Value per Share CPI Adj_Book
201609 13.399 241.428 18.534
201612 14.132 241.432 19.548
201703 14.259 243.801 19.532
201706 12.656 244.955 17.254
201709 13.691 246.819 18.524
201712 14.274 246.524 19.336
201803 14.801 249.554 19.807
201806 13.481 251.989 17.866
201809 13.775 252.439 18.223
201812 14.207 251.233 18.885
201903 15.165 254.202 19.923
201906 13.916 256.143 18.143
201909 14.649 256.759 19.053
201912 15.394 256.974 20.005
202003 15.282 258.115 19.772
202006 13.553 257.797 17.557
202009 14.004 260.280 17.968
202012 16.723 260.474 21.440
202103 18.617 264.877 23.472
202106 19.292 271.696 23.713
202109 17.510 274.310 21.317
202112 18.834 278.802 22.560
202203 18.373 287.504 21.341
202206 16.509 296.311 18.606
202209 17.441 296.808 19.624
202212 17.980 296.797 20.231
202303 18.890 301.836 20.900
202306 17.957 305.109 19.655
202309 19.367 307.789 21.013
202312 20.304 306.746 22.105
202403 21.120 312.332 22.582
202406 18.676 314.175 19.852
202409 18.678 315.301 19.783
202412 19.344 315.605 20.469
202503 20.047 319.799 20.934
202506 18.063 322.561 18.701
202509 19.025 324.800 19.561
202512 19.647 324.054 20.247
202603 20.208 330.213 20.437
202606 19.804 333.952 19.804

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$19.96 mean?
Ruby Tech (ROCO:8048) has a Cyclically Adjusted Book per Share of NT$19.96 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 Ruby Tech and its competitors.
Is Ruby Tech's Cyclically Adjusted Book per Share too high?
Ruby Tech's current Cyclically Adjusted Book per Share is NT$19.96. Overall, Ruby Tech has a GF Score™ of 88/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Ruby Tech's Cyclically Adjusted Book per Share compare to CSCO and MSI?
Ruby Tech's Cyclically Adjusted Book per Share of NT$19.96 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 Ruby Tech and its competitors. Ruby Tech's current Cyclically Adjusted Book per Share is NT$19.96. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ruby Tech stock overvalued right now?
Based on GuruFocus' analysis, Ruby Tech (ROCO:8048) is currently considered Fairly Valued. The stock's GF Value™ is NT$51.72, compared to a current price of NT$51.90 — trading 0.3% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$19.96. Ruby Tech's overall GF Score™ is 88/100 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 Ruby Tech (ROCO:8048), the current Cyclically Adjusted Book per Share is NT$19.96 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 Ruby Tech (ROCO:8048) Overvalued in 2026?

Based on GuruFocus' analysis, Ruby Tech stock appears to be overvalued. The current stock price of NT$51.90 is trading 0.3% above its estimated GF Value™ of NT$51.72. GuruFocus considers Ruby Tech to be Fairly Valued.

Key valuation signals for ROCO:8048:

  • Cyclically Adjusted Book per Share: NT$19.96
  • GF Value™: NT$51.72 vs. price of NT$51.90 (0.3% above fair value)
  • GF Score™: 88/100 with 2 warning signs

No single metric tells the full story. See the ROCO:8048 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Ruby Tech Business Description

Address Nangang Road, 3rd Floor No.1, Lane 50, Section 3, Xixin Village, Nangang District, Tapei, TWN, 115
Ruby Tech Corp is engaged in the research, manufacturing, and trading of optical fiber network equipment for central offices and customer premises, network management switches, and outdoor wireless networking equipment. It is focused on OEM/ODM Business of Networking Products such as PoE Ethernet Switches, Industrial Switches, GEPON OLT/ONU, etc. The reportable segments of the company are: i) Computer and its peripheral equipment: Department 1, and ii) Computer and its peripheral equipment: Department 2. The majority of revenue is derived from Department 1.
88GF Score

Get the complete analysis for ROCO:8048

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

NT$51.90
Price
NT$51.72
GF Value