Diamond Biotechnology Co (ROCO:6815) OCF Yield %: -0.20 (As of Jul. 18, 2026)

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ROCO:6815 Diamond Biotechnology Co Ltd ROCO:6815
80 GF Score
Price NT$29.70
GF Value NT$48.10
Valuation Possible Value Trap
! 7 Warning Signs
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What is Diamond Biotechnology Co OCF Yield %?

Diamond Biotechnology Co ROCO:6815 +3.85% 80 OCF Yield % is -0.20 as of Jul. 18, 2026. GuruFocus rates ROCO:6815 with a GF Score™ of 80/100 and a GF Value™ of NT$48.10 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 852 Medical Devices & Instruments companies, Diamond Biotechnology Co ranks worse than 59.27% 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.

As of today, Diamond Biotechnology Co's Trailing 12-Month Cash Flow from Operations is NT$-2.1 Mil, and Market Cap is NT$1,172.9 Mil. Therefore, Diamond Biotechnology Co's OCF Yield % for today is -0.20%.

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: -0.2   Med: 1.74   Max: 18.42
Current: -0.2


During the past 9 years, the highest OCF Yield % of Diamond Biotechnology Co was 18.42%. The lowest was -0.20%. And the median was 1.74%.

ROCO:6815's OCF Yield % is ranked worse than
59.27% of 852 companies
in the Medical Devices & Instruments industry
Industry Median: 1.73 vs ROCO:6815: -0.20

Diamond Biotechnology Co's OCF Margin % for the quarter that ended in Dec. 2025 was %.


Diamond Biotechnology Co OCF Yield % Explanation

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

* Premium members only.

The historical data trend for Diamond Biotechnology Co's OCF Yield % 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.

Diamond Biotechnology Co OCF Yield % Chart

Diamond Biotechnology Co Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Yield %
Get a 7-Day Free Trial Premium Member Only 0.58 18.21 1.69 1.50 -0.09

Diamond Biotechnology Co Semi-Annual Data
Dec17 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
OCF Yield % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 2.80 -3.45 6.91 -2.29 1.56

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.


ROCO:6815
80GF Score
Diamond Biotechnology Co Ltd ROCO:6815
OCF Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diamond Biotechnology Co OCF Yield % Calculation

OCF Yield % is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

Diamond Biotechnology Co's OCF Yield % for the fiscal year that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations / Market Cap
=-2.085 / 2448.566
=-0.09%

Diamond Biotechnology Co's annualized OCF Yield % for the quarter that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations * Annualized Factor / Market Cap
=19.083 * 2 / 2448.566
=1.56%

* 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.

Frequently Asked Questions Learn more about OCF Yield % →
What does a OCF Yield % of -0.20 mean?
Diamond Biotechnology Co (ROCO:6815) has a OCF Yield % of -0.20 as of Jul. 18, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Diamond Biotechnology Co and its competitors. According to the industry distribution chart, Diamond Biotechnology Co ranks #505 out of 852 companies in the Medical Devices & Instruments industry, placing it in the top 59.3%.
Is Diamond Biotechnology Co's OCF Yield % too high?
Diamond Biotechnology Co's current OCF Yield % is -0.20. Based on the distribution chart, Diamond Biotechnology Co ranks #505 out of 852 companies in the Medical Devices & Instruments industry, which is below the industry midpoint. Overall, Diamond Biotechnology Co has a GF Score™ of 80/100 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 #505 out of 852 companies for OCF Yield %. This places Diamond Biotechnology Co in the lower half of its industry. The industry median OCF Yield % is 1.73. 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 1.73, based on 852 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. 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 1.73 — 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 -0.20. 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$48.10, compared to a current price of NT$29.70 — trading 38.3% below its estimated fair value. The current OCF Yield % is -0.20. Diamond Biotechnology Co's overall GF Score™ is 80/100 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 -0.20 as of Jul. 18, 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$29.70 is trading 38.3% below its estimated GF Value™ of NT$48.10. GuruFocus considers Diamond Biotechnology Co to be Possible Value Trap.

Key valuation signals for ROCO:6815:

  • OCF Yield %: -0.20
  • GF Value™: NT$48.10 vs. price of NT$29.70 (38.3% below fair value)
  • GF Score™: 80/100 with 7 warning signs

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 Business Description

Address No. 45, Section 2, Fuxing South Road, Da'an District, 11th Floor, Taipei, TWN
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.
80GF 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.

NT$29.70
Price
NT$48.10
GF Value