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Sincere SecurityROCO:6721 -0.96%88 PB Ratio is 1.69 as of Aug. 14, 2026, which is 20% below its 10-year median of 2.11. GuruFocus rates ROCO:6721 with a GF Score™ of 88/100 and a GF Value™ of NT$67.00 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,045 Business Services companies, Sincere Security ranks worse than 50.33% on this metric.
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. As of today (2026-08-14), Sincere Security's share price is NT$51.60. Sincere Security's Book Value per Share for the quarter that ended in Mar. 2026 was NT$30.49. Hence, Sincere Security's PB Ratio of today is 1.69.
Good Sign:
Sincere Security Corp Ltd stock PB Ratio (=1.71) is close to 10-year low of 1.67.
The historical rank and industry rank for Sincere Security's PB Ratio or its related term are showing as below:
ROCO:6721'
s PB Ratio Range Over the Past 10 Years
Min: 1.67 Med: 2.11 Max: 3.7
Current: 1.69
During the past 9 years, Sincere Security's highest PB Ratio was 3.70. The lowest was 1.67. And the median was 2.11.
ROCO:6721's PB Ratio is ranked worse than 50.33% of 1045
companies
in the Business Services industry
Industry Median: 1.67
vs ROCO:6721: 1.69
During the past 12 months, Sincere Security's average Book Value Per Share Growth Rate was 6.10% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 5.50% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 7.90% per year.
During the past 9 years, the highest 3-Year average Book Value Per Share Growth Rate of Sincere Security was 19.00% per year. The lowest was 5.50% per year. And the median was 11.10% per year.
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.
Sincere Security PB Ratio Related Terms
Sincere Security PB Ratio Historical Data
* Premium members only.
The historical data trend for Sincere Security'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 Specialty Business Services subindustry, Sincere Security'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.
Sincere Security PB Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, Sincere Security's PB Ratio distribution charts can be found below:
* The bar in red indicates where Sincere Security'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.
Sincere Security (ROCO:6721) has a PB Ratio of 1.69 as of Aug. 14, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Sincere Security and its competitors. This is 20% below median its historical median of 2.11. Over the past decade, Sincere Security's PB Ratio has ranged from 1.67 to 3.70. According to the industry distribution chart, Sincere Security ranks #526 out of 1045 companies in the Business Services industry, placing it in the top 50.3%.
Is Sincere Security's PB Ratio too high?
Sincere Security's current PB Ratio of 1.69 is 20% below median its 10-year median of 2.11. Over the past 10 years, this metric has ranged from a low of 1.67 to a high of 3.70. The Business Services industry median PB Ratio is 1.67. Sincere Security's value of 1.69 is 1.2% above this industry median. Based on the distribution chart, Sincere Security ranks #526 out of 1045 companies in the Business Services industry, which is below the industry midpoint. Overall, Sincere Security has a GF Score™ of 88/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sincere Security's PB Ratio compare to CTAS and CPRT?
According to the Business Services industry distribution chart, Sincere Security ranks #526 out of 1045 companies for PB Ratio. This places Sincere Security in the lower half of its industry. The industry median PB Ratio is 1.67. Sincere Security's value of 1.69 is 1.2% above this benchmark. Historically, Sincere Security's own PB Ratio has ranged from 1.67 to 3.70 over the past decade. While the company's 10-year median is 2.11 vs. the industry median of 1.67, Sincere Security 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 Business Services company?
The median PB Ratio among Business Services companies is 1.67, based on 1,045 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. Sincere Security's current PB Ratio of 1.69 is 1.2% 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 Sincere Security and its competitors. For the Business Services industry, the median PB Ratio is 1.67 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sincere Security's current PB Ratio is 1.69, which is 20% below median its own 10-year median of 2.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sincere Security stock overvalued right now?
Based on GuruFocus' analysis, Sincere Security (ROCO:6721) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$67.00, compared to a current price of NT$51.60 — trading 23% below its estimated fair value. The current PB Ratio is 1.69, which is 20% below median its 10-year median of 2.11 and 1.2% above the Business Services industry median of 1.67. Sincere Security's overall GF Score™ is 88/100 with 3 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 Sincere Security (ROCO:6721), the current PB Ratio is 1.69 as of Aug. 14, 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 Sincere Security (ROCO:6721) Overvalued in 2026?
Based on GuruFocus' analysis, Sincere Security stock appears to be undervalued.
The current stock price of NT$51.60 is trading 23% below its estimated GF Value™ of NT$67.00.
GuruFocus considers Sincere Security to be Modestly Undervalued.
Key valuation signals for ROCO:6721:
PB Ratio: 1.69 (20% below median its 10-year median of 2.11)
GF Value™: NT$67.00 vs. price of NT$51.60 (23% below fair value)
Industry Position: 1.2% above the Business Services median (#526 of 1045)
No single metric tells the full story. See the ROCO:6721 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sincere Security Corp Ltd is a Taiwan based company involved in property management, cleaning services, mechanical and electrical air-conditioning maintenance and security monitoring. It provides services at science parks, hypermarkets, commercial buildings, schools, golf courses, villas and residential areas, and government units.
88GF Score
Get the complete analysis for ROCO:6721
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