Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Taiwan Advanced NanotechROCO:6797 59 PS Ratio is 2.63 as of Jul. 21, 2026, which is 4% above its 10-year median of 2.52. GuruFocus rates ROCO:6797 with a GF Score™ of 59/100 and a GF Value™ of NT$13.36 (Fairly Valued). The stock has 5 warning signs investors should review. Among 804 Medical Devices & Instruments companies, Taiwan Advanced Nanotech ranks better than 52.99% on this metric.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. As of today, Taiwan Advanced Nanotech's share price is NT$13.30.
Taiwan Advanced Nanotech's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was NT$5.06. Hence, Taiwan Advanced Nanotech's PS Ratio for today is 2.63.
The historical rank and industry rank for Taiwan Advanced Nanotech's PS Ratio or its related term are showing as below:
ROCO:6797'
s PS Ratio Range Over the Past 10 Years
Min: 0.75 Med: 2.52 Max: 63.64
Current: 2.63
During the past 9 years, Taiwan Advanced Nanotech's highest PS Ratio was 63.64. The lowest was 0.75. And the median was 2.52.
ROCO:6797's PS Ratio is ranked better than 52.99% of 804
companies
in the Medical Devices & Instruments industry
Industry Median: 2.845
vs ROCO:6797: 2.63
During the past 9 years, Taiwan Advanced Nanotech's highest 3-Year average Revenue per Share Growth Rate was 155.90% per year. The lowest was -52.70% per year. And the median was 32.25% per year.
Back to Basics: PS Ratio
Taiwan Advanced Nanotech (ROCO:6797) PS Ratio Explanation
The PS Ratio is an excellent valuation indicator if you want to compare a stock with its historical valuation or with the stocks in the same industry. The PS Ratio works especially well when you want to compare the stock's current valuation with its historical valuation. The PS Ratio is a great valuation tool for evaluating cyclical businesses where the PE Ratio works poorly. It works the best when comparing the current valuation with the historical valuation because over time, a company's profit margin tends to revert to the mean.
When the PS Ratio is applied to the whole stock market, it can be used to evaluate the current market valuation and projected returns. In this case, the price is the total market cap of all stocks that are traded, and sales are the GDP of the country. This is how Warren Buffett estimates the broad market valuation and project future returns.
The PS Ratio does not tell you how cheap or expensive the stock is. It cannot be used to compare companies in different industries. It works better for companies within the same industry because these companies tend to have similar capital structures and profit margins. It works the best when comparing a company with itself in the past.
* 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 PS Ratio, along with its competitors' market caps and PS 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 PS Ratio vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Taiwan Advanced Nanotech's PS Ratio distribution charts can be found below:
* The bar in red indicates where Taiwan Advanced Nanotech's PS Ratio falls into.
The PS Ratio, or Price-to-Sales ratio, or Price/Sales, is a financial ratio used to compare a company's market price to its Revenue per Share. It is a ratio widely used to value stocks and it was first used by Ken Fisher.
Taiwan Advanced Nanotech's Share Price of today is NT$13.30.
For company reported semi-annually, GuruFocus uses latest annual data as the TTM data. Taiwan Advanced Nanotech's Revenue per Share for the trailing twelve months (TTM) ended in Dec. 2025 was NT$5.06.
* 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:
Taiwan Advanced Nanotech (ROCO:6797) has a PS Ratio of 2.63 as of Jul. 21, 2026. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Taiwan Advanced Nanotech and its competitors. This is near median its historical median of 2.52. Over the past decade, Taiwan Advanced Nanotech's PS Ratio has ranged from 0.75 to 63.64. According to the industry distribution chart, Taiwan Advanced Nanotech ranks #378 out of 804 companies in the Medical Devices & Instruments industry, placing it in the top 47%.
Is Taiwan Advanced Nanotech's PS Ratio too high?
Taiwan Advanced Nanotech's current PS Ratio of 2.63 is near median its 10-year median of 2.52. Over the past 10 years, this metric has ranged from a low of 0.75 to a high of 63.64. The Medical Devices & Instruments industry median PS Ratio is 2.85. Taiwan Advanced Nanotech's value of 2.63 is 7.6% below this industry median. Based on the distribution chart, Taiwan Advanced Nanotech ranks #378 out of 804 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. 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 PS Ratio compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Taiwan Advanced Nanotech ranks #378 out of 804 companies for PS Ratio. This puts Taiwan Advanced Nanotech in the upper half of its industry. The industry median PS Ratio is 2.85. Taiwan Advanced Nanotech's value of 2.63 is 7.6% below this benchmark. Historically, Taiwan Advanced Nanotech's own PS Ratio has ranged from 0.75 to 63.64 over the past decade. While the company's 10-year median is 2.52 vs. the industry median of 2.85, 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 PS Ratio for a Medical Devices & Instruments company?
The median PS Ratio among Medical Devices & Instruments companies is 2.85, based on 804 companies in the industry. Companies in the top quartile (top 25%) have a PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Taiwan Advanced Nanotech's current PS Ratio of 2.63 is 7.6% 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 PS Ratio mean?
A high PS Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Sales ratio is the ratio of share price to a company's revenue per share. View historical data on Taiwan Advanced Nanotech and its competitors. For the Medical Devices & Instruments industry, the median PS Ratio is 2.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Advanced Nanotech's current PS Ratio is 2.63, which is near median its own 10-year median of 2.52. 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$13.36, compared to a current price of NT$13.30 — trading 0.4% below its estimated fair value. The current PS Ratio is 2.63, which is near median its 10-year median of 2.52 and 7.6% below the Medical Devices & Instruments industry median of 2.85. Taiwan Advanced Nanotech's overall GF Score™ is 59/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PS Ratio calculated?
PS Ratio is calculated from a company's financial statements. For Taiwan Advanced Nanotech (ROCO:6797), the current PS Ratio is 2.63 as of Jul. 21, 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$13.30 is trading 0.4% below its estimated GF Value™ of NT$13.36.
GuruFocus considers Taiwan Advanced Nanotech to be Fairly Valued.
Key valuation signals for ROCO:6797:
PS Ratio: 2.63 (near median its 10-year median of 2.52)
GF Value™: NT$13.36 vs. price of NT$13.30 (0.4% below fair value)
Industry Position: 7.6% below the Medical Devices & Instruments median (#378 of 804)
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
PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6797 has been successfully added to your 
