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.
Diamond Biotechnology CoROCO:6815 -5.24%82 OCF Yield % is 8.21 as of Sep. 01, 2026, which is 372% above its 10-year median of 1.74. GuruFocus rates ROCO:6815 with a GF Score™ of 82/100 and a GF Value™ of NT$41.72 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 850 Medical Devices & Instruments companies, Diamond Biotechnology Co ranks better than 82.12% on this metric.
OCF Yield % is calculated as Cash Flow from Operations divided by Market Capitalization. It is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.
The historical rank and industry rank for Diamond Biotechnology Co's OCF Yield % or its related term are showing as below:
ROCO:6815'
s OCF Yield % Range Over the Past 10 Years
Min: -0.22 Med: 1.74 Max: 18.42
Current: 8.21
During the past 9 years, the highest OCF Yield % of Diamond Biotechnology Co was 18.42%. The lowest was -0.22%. And the median was 1.74%.
ROCO:6815's OCF Yield % is ranked better than 82.12% of 850
companies
in the Medical Devices & Instruments industry
Industry Median: 1.75
vs ROCO:6815: 8.21
Similar to Earnings Yield %, OCF Yield % is financial solvency ratio. A lower ratio suggests a less attractive investment, indicating that investors might not receive substantial returns in proportion to their investment. Conversely, a high operating cash flow yield signals that a company generates sufficient cash to comfortably meet its debts, obligations, and dividend payments, making it a promising investment choice.
Diamond Biotechnology Co OCF Yield % Related Terms
Diamond Biotechnology Co OCF Yield % Historical Data
* 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.
ROCO:6815 vs ABT, SYK, MDT: OCF Yield % Comparison
For the Medical Devices subindustry, Diamond Biotechnology Co's OCF Yield %, along with its competitors' market caps and OCF Yield % 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.
Diamond Biotechnology Co OCF Yield % vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Diamond Biotechnology Co's OCF Yield % distribution charts can be found below:
* The bar in red indicates where Diamond Biotechnology Co's OCF Yield % falls into.
* 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.
Diamond Biotechnology Co (ROCO:6815) has a OCF Yield % of 8.21 as of Sep. 01, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Diamond Biotechnology Co and its competitors. This is 372% above median its historical median of 1.74. According to the industry distribution chart, Diamond Biotechnology Co ranks #152 out of 850 companies in the Medical Devices & Instruments industry, placing it in the top 17.9%.
Is Diamond Biotechnology Co's OCF Yield % too high?
Diamond Biotechnology Co's current OCF Yield % of 8.21 is 372% above median its 10-year median of 1.74. The Medical Devices & Instruments industry median OCF Yield % is 1.75. Diamond Biotechnology Co's value of 8.21 is 369.1% above this industry median. Based on the distribution chart, Diamond Biotechnology Co ranks #152 out of 850 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, Diamond Biotechnology Co has a GF Score™ of 82/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Diamond Biotechnology Co's OCF Yield % compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Diamond Biotechnology Co ranks #152 out of 850 companies for OCF Yield %. This places Diamond Biotechnology Co in the top 18% of its industry — outperforming the majority of peers. The industry median OCF Yield % is 1.75. Diamond Biotechnology Co's value of 8.21 is 369.1% above this benchmark. While the company's 10-year median is 1.74 vs. the industry median of 1.75, Diamond Biotechnology Co 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 OCF Yield % for a Medical Devices & Instruments company?
The median OCF Yield % among Medical Devices & Instruments companies is 1.75, based on 850 companies in the industry. Companies in the top quartile (top 25%) have a OCF Yield % significantly above this median, while those in the bottom quartile fall well below. However, OCF Yield % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Diamond Biotechnology Co's current OCF Yield % of 8.21 is 369.1% 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 OCF Yield % mean?
A high OCF Yield % can signal that a stock is expensive relative to its fundamentals. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Diamond Biotechnology Co and its competitors. For the Medical Devices & Instruments industry, the median OCF Yield % is 1.75 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Biotechnology Co's current OCF Yield % is 8.21, which is 372% above median its own 10-year median of 1.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamond Biotechnology Co stock overvalued right now?
Based on GuruFocus' analysis, Diamond Biotechnology Co (ROCO:6815) is currently considered Possible Value Trap. The stock's GF Value™ is NT$41.72, compared to a current price of NT$23.50 — trading 43.7% below its estimated fair value. The current OCF Yield % is 8.21, which is 372% above median its 10-year median of 1.74 and 369.1% above the Medical Devices & Instruments industry median of 1.75. Diamond Biotechnology Co's overall GF Score™ is 82/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Yield % calculated?
OCF Yield % is calculated from a company's financial statements. For Diamond Biotechnology Co (ROCO:6815), the current OCF Yield % is 8.21 as of Sep. 01, 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 Diamond Biotechnology Co (ROCO:6815) Overvalued in 2026?
Based on GuruFocus' analysis, Diamond Biotechnology Co stock appears to be undervalued.
The current stock price of NT$23.50 is trading 43.7% below its estimated GF Value™ of NT$41.72.
GuruFocus considers Diamond Biotechnology Co to be Possible Value Trap.
Key valuation signals for ROCO:6815:
OCF Yield %: 8.21 (372% above median its 10-year median of 1.74)
GF Value™: NT$41.72 vs. price of NT$23.50 (43.7% below fair value)
Industry Position: 369.1% above the Medical Devices & Instruments median (#152 of 850)
No single metric tells the full story. See the ROCO:6815 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Diamond Biotechnology Co Ltd is engaged in the research and development of medical equipment, and medical consumables. It also manufactures and sells medical beauty-level skincare products.
82GF Score
Get the complete analysis for ROCO:6815
OCF Yield % 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:6815 has been successfully added to your 
