Diamond Biotechnology Co (ROCO:6815) OCF Margin %: 10.38% (As of Dec. 2025) — 56% Above Median

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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 Margin %?

Diamond Biotechnology Co ROCO:6815 +3.85% 80 OCF Margin % is 10.38% as of Dec. 2025, which is 56% above its 10-year median of 6.64. 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 817 Medical Devices & Instruments companies, Diamond Biotechnology Co ranks worse than 61.81% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. Diamond Biotechnology Co's Cash Flow from Operations for the six months ended in Dec. 2025 was NT$19.1 Mil. Diamond Biotechnology Co's Revenue for the six months ended in Dec. 2025 was NT$183.9 Mil. Therefore, Diamond Biotechnology Co's OCF Margin % for the quarter that ended in Dec. 2025 was 10.38%.

As of today, Diamond Biotechnology Co's current OCF Yield % is -0.20%.

The historical rank and industry rank for Diamond Biotechnology Co's OCF Margin % or its related term are showing as below:

ROCO:6815' s OCF Margin % Range Over the Past 10 Years
Min: -0.42   Med: 6.64   Max: 36.23
Current: -0.42


During the past 9 years, the highest OCF Margin % of Diamond Biotechnology Co was 36.23%. The lowest was -0.42%. And the median was 6.64%.

ROCO:6815's OCF Margin % is ranked worse than
61.81% of 817 companies
in the Medical Devices & Instruments industry
Industry Median: 5.82 vs ROCO:6815: -0.42


Diamond Biotechnology Co OCF Margin % Related Terms


Diamond Biotechnology Co OCF Margin % Historical Data

* Premium members only.

The historical data trend for Diamond Biotechnology Co's OCF Margin % 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 Margin % Chart

Diamond Biotechnology Co Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Margin %
Get a 7-Day Free Trial Premium Member Only 1.43 36.23 6.64 5.12 -0.42

Diamond Biotechnology Co Semi-Annual Data
Dec17 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
OCF Margin % 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 10.59 -13.18 23.76 -6.66 10.38

ROCO:6815 vs ABT, SYK, MDT: OCF Margin % Comparison

For the Medical Devices subindustry, Diamond Biotechnology Co's OCF Margin %, along with its competitors' market caps and OCF Margin % 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 Margin % vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Diamond Biotechnology Co's OCF Margin % distribution charts can be found below:

* The bar in red indicates where Diamond Biotechnology Co's OCF Margin % falls into.


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

OCF Margin % is the ratio of Cash Flow from Operations divided by net sales or Revenue, usually presented in percent.

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

OCF Margin=Cash Flow from Operations (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-2.085/501.494
=-0.42 %

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

OCF Margin=Cash Flow from Operations (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=19.083/183.891
=10.38 %

* 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 Margin % →
What does a OCF Margin % of 10.38% mean?
Diamond Biotechnology Co (ROCO:6815) has a OCF Margin % of 10.38% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Diamond Biotechnology Co and its competitors. This is 56% above median its historical median of 6.64. According to the industry distribution chart, Diamond Biotechnology Co ranks #505 out of 817 companies in the Medical Devices & Instruments industry, placing it in the top 61.8%.
Is Diamond Biotechnology Co's OCF Margin % too high?
Diamond Biotechnology Co's current OCF Margin % of 10.38% is 56% above median its 10-year median of 6.64. The Medical Devices & Instruments industry median OCF Margin % is 5.82. Diamond Biotechnology Co's value of 10.38% is 78.4% above this industry median. Based on the distribution chart, Diamond Biotechnology Co ranks #505 out of 817 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 Margin % compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Diamond Biotechnology Co ranks #505 out of 817 companies for OCF Margin %. This places Diamond Biotechnology Co in the lower half of its industry. The industry median OCF Margin % is 5.82. Diamond Biotechnology Co's value of 10.38% is 78.4% above this benchmark. While the company's 10-year median is 6.64 vs. the industry median of 5.82, 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 Margin % for a Medical Devices & Instruments company?
The median OCF Margin % among Medical Devices & Instruments companies is 5.82, based on 817 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Diamond Biotechnology Co's current OCF Margin % of 10.38% is 78.4% 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 Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Diamond Biotechnology Co and its competitors. For the Medical Devices & Instruments industry, the median OCF Margin % is 5.82 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Biotechnology Co's current OCF Margin % is 10.38%, which is 56% above median its own 10-year median of 6.64. 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 Margin % is 10.38%, which is 56% above median its 10-year median of 6.64 and 78.4% above the Medical Devices & Instruments industry median of 5.82. 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 Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Diamond Biotechnology Co (ROCO:6815), the current OCF Margin % is 10.38% as of Dec. 2025. 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 Margin %: 10.38% (56% above median its 10-year median of 6.64)
  • GF Value™: NT$48.10 vs. price of NT$29.70 (38.3% below fair value)
  • GF Score™: 80/100 with 7 warning signs
  • Industry Position: 78.4% above the Medical Devices & Instruments median (#505 of 817)

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 Margin % 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