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Diamond Biotechnology CoROCO:6815 +3.85%80 Days Inventory is 121.94 as of Dec. 2025, which is 17% above its 10-year median of 104.08. GuruFocus rates ROCO:6815 with a GF Score™ of 80/100 and a GF Value™ of NT$48.11 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 786 Medical Devices & Instruments companies, Diamond Biotechnology Co ranks better than 74.94% on this metric.
The historical rank and industry rank for Diamond Biotechnology Co's Days Inventory or its related term are showing as below:
ROCO:6815'
s Days Inventory Range Over the Past 10 Years
Min: 47.76 Med: 104.08 Max: 125.98
Current: 114.3
During the past 9 years, Diamond Biotechnology Co's highest Days Inventory was 125.98. The lowest was 47.76. And the median was 104.08.
ROCO:6815's Days Inventory is ranked better than 74.94% of 786
companies
in the Medical Devices & Instruments industry
Industry Median: 179.6
vs ROCO:6815: 114.30
Inventory Turnover measures how fast the company turns over its inventory within a year.
Diamond Biotechnology Co's Inventory Turnover for the
six
months ended in Dec. 2025 was 1.50.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Diamond Biotechnology Co's Inventory-to-Revenue for the
six
months ended in Dec. 2025 was 0.57.
Diamond Biotechnology Co (ROCO:6815) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
Diamond Biotechnology Co's Inventory Turnover for the
six
months ended in Dec. 2025 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Diamond Biotechnology Co's Inventory to Revenue for the
six
months ended in Dec. 2025 is calculated as
* 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.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
Diamond Biotechnology Co Days Inventory Related Terms
Diamond Biotechnology Co Days Inventory 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: Days Inventory Comparison
For the Medical Devices subindustry, Diamond Biotechnology Co's Days Inventory, along with its competitors' market caps and Days Inventory 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 Days Inventory vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Diamond Biotechnology Co's Days Inventory distribution charts can be found below:
* The bar in red indicates where Diamond Biotechnology Co's Days Inventory 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 Days Inventory of 121.94 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Diamond Biotechnology Co and its competitors. This is 17% above median its historical median of 104.08. Over the past decade, Diamond Biotechnology Co's Days Inventory has ranged from 47.76 to 125.98. According to the industry distribution chart, Diamond Biotechnology Co ranks #197 out of 786 companies in the Medical Devices & Instruments industry, placing it in the top 25.1%.
Is Diamond Biotechnology Co's Days Inventory too high?
Diamond Biotechnology Co's current Days Inventory of 121.94 is 17% above median its 10-year median of 104.08. Over the past 10 years, this metric has ranged from a low of 47.76 to a high of 125.98. The Medical Devices & Instruments industry median Days Inventory is 179.60. Diamond Biotechnology Co's value of 121.94 is 32.1% below this industry median. Based on the distribution chart, Diamond Biotechnology Co ranks #197 out of 786 companies in the Medical Devices & Instruments industry, which is above 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 Days Inventory compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Diamond Biotechnology Co ranks #197 out of 786 companies for Days Inventory. This puts Diamond Biotechnology Co in the upper half of its industry. The industry median Days Inventory is 179.60. Diamond Biotechnology Co's value of 121.94 is 32.1% below this benchmark. Historically, Diamond Biotechnology Co's own Days Inventory has ranged from 47.76 to 125.98 over the past decade. While the company's 10-year median is 104.08 vs. the industry median of 179.60, Diamond Biotechnology Co 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 Days Inventory for a Medical Devices & Instruments company?
The median Days Inventory among Medical Devices & Instruments companies is 179.60, based on 786 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Diamond Biotechnology Co's current Days Inventory of 121.94 is 32.1% 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 Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Diamond Biotechnology Co and its competitors. For the Medical Devices & Instruments industry, the median Days Inventory is 179.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Biotechnology Co's current Days Inventory is 121.94, which is 17% above median its own 10-year median of 104.08. 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$48.11, compared to a current price of NT$29.70 — trading 38.3% below its estimated fair value. The current Days Inventory is 121.94, which is 17% above median its 10-year median of 104.08 and 32.1% below the Medical Devices & Instruments industry median of 179.60. 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 Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Diamond Biotechnology Co (ROCO:6815), the current Days Inventory is 121.94 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$48.11.
GuruFocus considers Diamond Biotechnology Co to be Possible Value Trap.
Key valuation signals for ROCO:6815:
Days Inventory: 121.94 (17% above median its 10-year median of 104.08)
GF Value™: NT$48.11 vs. price of NT$29.70 (38.3% below fair value)
Industry Position: 32.1% below the Medical Devices & Instruments median (#197 of 786)
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.
80GF Score
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