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Taiwan Advanced NanotechROCO:6797 59 PB Ratio is 0.51 as of Jul. 15, 2026, which is 42% below its 10-year median of 0.88. GuruFocus rates ROCO:6797 with a GF Score™ of 59/100 and a GF Value™ of NT$13.40 (Fairly Valued). The stock has 4 warning signs investors should review. Among 788 Medical Devices & Instruments companies, Taiwan Advanced Nanotech ranks better than 93.15% on this metric.
The historical rank and industry rank for Taiwan Advanced Nanotech's PB Ratio or its related term are showing as below:
ROCO:6797'
s PB Ratio Range Over the Past 10 Years
Min: 0.44 Med: 0.88 Max: 57.96
Current: 0.51
During the past 9 years, Taiwan Advanced Nanotech's highest PB Ratio was 57.96. The lowest was 0.44. And the median was 0.88.
ROCO:6797's PB Ratio is ranked better than 93.15% of 788
companies
in the Medical Devices & Instruments industry
Industry Median: 2.05
vs ROCO:6797: 0.51
During the past 12 months, Taiwan Advanced Nanotech's average Book Value Per Share Growth Rate was -21.60% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -19.10% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -5.50% per year.
During the past 9 years, the highest 3-Year average Book Value Per Share Growth Rate of Taiwan Advanced Nanotech was 115.20% per year. The lowest was -19.10% per year. And the median was 49.15% per year.
Back to Basics: PB Ratio
Taiwan Advanced Nanotech (ROCO:6797) 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.
* 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 Medical Devices subindustry, Taiwan Advanced Nanotech'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.
Taiwan Advanced Nanotech PB Ratio vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Taiwan Advanced Nanotech's PB Ratio distribution charts can be found below:
* The bar in red indicates where Taiwan Advanced Nanotech'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.
Taiwan Advanced Nanotech (ROCO:6797) has a PB Ratio of 0.51 as of Jul. 15, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Taiwan Advanced Nanotech and its competitors. This is 42% below median its historical median of 0.88. Over the past decade, Taiwan Advanced Nanotech's PB Ratio has ranged from 0.44 to 57.96. According to the industry distribution chart, Taiwan Advanced Nanotech ranks #54 out of 788 companies in the Medical Devices & Instruments industry, placing it in the top 6.9%.
Is Taiwan Advanced Nanotech's PB Ratio too high?
Taiwan Advanced Nanotech's current PB Ratio of 0.51 is 42% below median its 10-year median of 0.88. Over the past 10 years, this metric has ranged from a low of 0.44 to a high of 57.96. The Medical Devices & Instruments industry median PB Ratio is 2.05. Taiwan Advanced Nanotech's value of 0.51 is 75.1% below this industry median. Based on the distribution chart, Taiwan Advanced Nanotech ranks #54 out of 788 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, Taiwan Advanced Nanotech has a GF Score™ of 59/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Advanced Nanotech's PB Ratio compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Taiwan Advanced Nanotech ranks #54 out of 788 companies for PB Ratio. This places Taiwan Advanced Nanotech in the top 7% of its industry — outperforming the majority of peers. The industry median PB Ratio is 2.05. Taiwan Advanced Nanotech's value of 0.51 is 75.1% below this benchmark. Historically, Taiwan Advanced Nanotech's own PB Ratio has ranged from 0.44 to 57.96 over the past decade. While the company's 10-year median is 0.88 vs. the industry median of 2.05, Taiwan Advanced Nanotech has consistently been below 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 Medical Devices & Instruments company?
The median PB Ratio among Medical Devices & Instruments companies is 2.05, based on 788 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. Taiwan Advanced Nanotech's current PB Ratio of 0.51 is 75.1% below 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 Taiwan Advanced Nanotech and its competitors. For the Medical Devices & Instruments industry, the median PB Ratio is 2.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Advanced Nanotech's current PB Ratio is 0.51, which is 42% below median its own 10-year median of 0.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Advanced Nanotech stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Advanced Nanotech (ROCO:6797) is currently considered Fairly Valued. The stock's GF Value™ is NT$13.40, compared to a current price of NT$13.20 — trading 1.5% below its estimated fair value. The current PB Ratio is 0.51, which is 42% below median its 10-year median of 0.88 and 75.1% below the Medical Devices & Instruments industry median of 2.05. Taiwan Advanced Nanotech's overall GF Score™ is 59/100 with 4 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 Taiwan Advanced Nanotech (ROCO:6797), the current PB Ratio is 0.51 as of Jul. 15, 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 Taiwan Advanced Nanotech (ROCO:6797) Overvalued in 2026?
Based on GuruFocus' analysis, Taiwan Advanced Nanotech stock appears to be undervalued.
The current stock price of NT$13.20 is trading 1.5% below its estimated GF Value™ of NT$13.40.
GuruFocus considers Taiwan Advanced Nanotech to be Fairly Valued.
Key valuation signals for ROCO:6797:
PB Ratio: 0.51 (42% below median its 10-year median of 0.88)
GF Value™: NT$13.40 vs. price of NT$13.20 (1.5% below fair value)
Industry Position: 75.1% below the Medical Devices & Instruments median (#54 of 788)
No single metric tells the full story. See the ROCO:6797 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Taiwan Advanced Nanotech Inc is engaged in development and manufacturing of various functional nanoparticles and automated nucleic acid extraction machines and trading related businesses. With expertise in automation, buffer optimization and modification of magnetic beads, it focuses on offering customer convenient and practical solutions to advance research, life science and molecular diagnostics. It offers various products to meet the requirements of customers. The company's products include Automated Extraction Instruments; Reagent Kit; Mag Nanoparticles; and Consumables.
59GF Score
Get the complete analysis for ROCO:6797
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