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CastleNet TechnologyROCO:8059 -1.78%52 PB Ratio is 2.88 as of Jul. 17, 2026, which is 130% above its 10-year median of 1.25. GuruFocus rates ROCO:8059 with a GF Score™ of 52/100 and a GF Value™ of NT$365.76 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 2,419 Hardware companies, CastleNet Technology ranks worse than 59.57% on this metric.
CastleNet Technology Inc stock PB Ratio (=2.88) is close to 2-year low of 2.66.
The historical rank and industry rank for CastleNet Technology's PB Ratio or its related term are showing as below:
ROCO:8059'
s PB Ratio Range Over the Past 10 Years
Min: 0.65 Med: 1.25 Max: 6.66
Current: 2.88
During the past 13 years, CastleNet Technology's highest PB Ratio was 6.66. The lowest was 0.65. And the median was 1.25.
ROCO:8059's PB Ratio is ranked worse than 59.57% of 2419
companies
in the Hardware industry
Industry Median: 2.25
vs ROCO:8059: 2.88
During the past 12 months, CastleNet Technology's average Book Value Per Share Growth Rate was -29.70% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -16.50% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -9.60% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -3.00% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of CastleNet Technology was 12.80% per year. The lowest was -16.50% per year. And the median was -1.90% per year.
Back to Basics: PB Ratio
CastleNet Technology (ROCO:8059) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
CastleNet Technology PB Ratio Related Terms
CastleNet Technology PB Ratio Historical Data
* Premium members only.
The historical data trend for CastleNet Technology's PB Ratio 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.
For the Communication Equipment subindustry, CastleNet Technology's PB Ratio, along with its competitors' market caps and 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 PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, CastleNet Technology's PB Ratio distribution charts can be found below:
* The bar in red indicates where CastleNet Technology's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
CastleNet Technology (ROCO:8059) has a PB Ratio of 2.88 as of Jul. 17, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on CastleNet Technology and its competitors. This is 130% above median its historical median of 1.25. Over the past decade, CastleNet Technology's PB Ratio has ranged from 0.65 to 6.66. According to the industry distribution chart, CastleNet Technology ranks #1441 out of 2419 companies in the Hardware industry, placing it in the top 59.6%.
Is CastleNet Technology's PB Ratio too high?
CastleNet Technology's current PB Ratio of 2.88 is 130% above median its 10-year median of 1.25. Over the past 10 years, this metric has ranged from a low of 0.65 to a high of 6.66. The Hardware industry median PB Ratio is 2.25. CastleNet Technology's value of 2.88 is 28% above this industry median. Based on the distribution chart, CastleNet Technology ranks #1441 out of 2419 companies in the Hardware industry, which is below the industry midpoint. 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 PB Ratio compare to CSCO and CIEN?
According to the Hardware industry distribution chart, CastleNet Technology ranks #1441 out of 2419 companies for PB Ratio. This places CastleNet Technology in the lower half of its industry. The industry median PB Ratio is 2.25. CastleNet Technology's value of 2.88 is 28% above this benchmark. Historically, CastleNet Technology's own PB Ratio has ranged from 0.65 to 6.66 over the past decade. While the company's 10-year median is 1.25 vs. the industry median of 2.25, CastleNet Technology has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Hardware company?
The median PB Ratio among Hardware companies is 2.25, based on 2,419 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. CastleNet Technology's current PB Ratio of 2.88 is 28% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on CastleNet Technology and its competitors. For the Hardware industry, the median PB Ratio is 2.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CastleNet Technology's current PB Ratio is 2.88, which is 130% above median its own 10-year median of 1.25. 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$365.76, compared to a current price of NT$16.60 — trading 95.5% below its estimated fair value. The current PB Ratio is 2.88, which is 130% above median its 10-year median of 1.25 and 28% above the Hardware industry median of 2.25. 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 PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For CastleNet Technology (ROCO:8059), the current PB Ratio is 2.88 as of Jul. 17, 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 CastleNet Technology (ROCO:8059) Overvalued in 2026?
Based on GuruFocus' analysis, CastleNet Technology stock appears to be undervalued.
The current stock price of NT$16.60 is trading 95.5% below its estimated GF Value™ of NT$365.76.
GuruFocus considers CastleNet Technology to be Possible Value Trap.
Key valuation signals for ROCO:8059:
PB Ratio: 2.88 (130% above median its 10-year median of 1.25)
GF Value™: NT$365.76 vs. price of NT$16.60 (95.5% below fair value)
Industry Position: 28% above the Hardware median (#1441 of 2419)
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 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
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