Taiwan Advanced Nanotech (ROCO:6797) Days Inventory: 261.62 (As of Dec. 2025) — 14% Above Median

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ROCO:6797 Taiwan Advanced Nanotech Inc ROCO:6797
60 GF Score
Price NT$13.30
GF Value NT$13.39
Valuation Fairly Valued
! 4 Warning Signs
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What is Taiwan Advanced Nanotech Days Inventory?

Taiwan Advanced Nanotech ROCO:6797 +1.53% 60 Days Inventory is 261.62 as of Dec. 2025, which is 14% above its 10-year median of 229.75. GuruFocus rates ROCO:6797 with a GF Score™ of 60/100 and a GF Value™ of NT$13.39 (Fairly Valued). The stock has 4 warning signs investors should review. Among 787 Medical Devices & Instruments companies, Taiwan Advanced Nanotech ranks worse than 82.34% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Taiwan Advanced Nanotech's Average Total Inventories for the six months ended in Dec. 2025 was NT$198.1 Mil. Taiwan Advanced Nanotech's Cost of Goods Sold for the six months ended in Dec. 2025 was NT$138.2 Mil. Hence, Taiwan Advanced Nanotech's Days Inventory for the six months ended in Dec. 2025 was 261.62.

The historical rank and industry rank for Taiwan Advanced Nanotech's Days Inventory or its related term are showing as below:

ROCO:6797' s Days Inventory Range Over the Past 10 Years
Min: 65.44   Med: 229.75   Max: 510.02
Current: 342.94

During the past 9 years, Taiwan Advanced Nanotech's highest Days Inventory was 510.02. The lowest was 65.44. And the median was 229.75.

ROCO:6797's Days Inventory is ranked worse than
82.34% of 787 companies
in the Medical Devices & Instruments industry
Industry Median: 179.47 vs ROCO:6797: 342.94

Taiwan Advanced Nanotech's Days Inventory declined from Dec. 2024 (458.44) to Dec. 2025 (261.62).

Inventory Turnover measures how fast the company turns over its inventory within a year. Taiwan Advanced Nanotech's Inventory Turnover for the six months ended in Dec. 2025 was 0.70.

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. Taiwan Advanced Nanotech's Inventory-to-Revenue for the six months ended in Dec. 2025 was 2.26.


Taiwan Advanced Nanotech  (ROCO:6797) 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.

Taiwan Advanced Nanotech'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.

Taiwan Advanced Nanotech'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.


Taiwan Advanced Nanotech Days Inventory Related Terms


Taiwan Advanced Nanotech Days Inventory Historical Data

* Premium members only.

The historical data trend for Taiwan Advanced Nanotech's Days Inventory 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.

Taiwan Advanced Nanotech Days Inventory Chart

Taiwan Advanced Nanotech Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only 94.07 136.13 406.42 462.36 328.22

Taiwan Advanced Nanotech Semi-Annual Data
Dec17 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Days Inventory 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 466.99 454.23 458.44 483.48 261.62

ROCO:6797 vs ABT, SYK, MDT: Days Inventory Comparison

For the Medical Devices subindustry, Taiwan Advanced Nanotech'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.


Taiwan Advanced Nanotech Days Inventory vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Taiwan Advanced Nanotech's Days Inventory distribution charts can be found below:

* The bar in red indicates where Taiwan Advanced Nanotech's Days Inventory falls into.


ROCO:6797
60GF Score
Taiwan Advanced Nanotech Inc ROCO:6797
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Taiwan Advanced Nanotech Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

Taiwan Advanced Nanotech's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (252.675 + 161.277) / 2 ) / 230.172*365
=206.976 / 230.172*365
=328.22

Taiwan Advanced Nanotech's Days Inventory for the quarter that ended in Dec. 2025 is calculated as:

Days Inventory (Q: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Jun. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count ) / Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=( (234.839 + 161.277) / 2 ) / 138.16*365 / 2
=198.058 / 138.16*365 / 2
=261.62

* 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 Days Inventory →
What does a Days Inventory of 261.62 mean?
Taiwan Advanced Nanotech (ROCO:6797) has a Days Inventory of 261.62 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Taiwan Advanced Nanotech and its competitors. This is 14% above median its historical median of 229.75. Over the past decade, Taiwan Advanced Nanotech's Days Inventory has ranged from 65.44 to 510.02. According to the industry distribution chart, Taiwan Advanced Nanotech ranks #648 out of 787 companies in the Medical Devices & Instruments industry, placing it in the top 82.3%.
Is Taiwan Advanced Nanotech's Days Inventory too high?
Taiwan Advanced Nanotech's current Days Inventory of 261.62 is 14% above median its 10-year median of 229.75. Over the past 10 years, this metric has ranged from a low of 65.44 to a high of 510.02. The Medical Devices & Instruments industry median Days Inventory is 179.47. Taiwan Advanced Nanotech's value of 261.62 is 45.8% above this industry median. Based on the distribution chart, Taiwan Advanced Nanotech ranks #648 out of 787 companies in the Medical Devices & Instruments industry, which is in the bottom quartile relative to peers. Overall, Taiwan Advanced Nanotech has a GF Score™ of 60/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Advanced Nanotech's Days Inventory compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Taiwan Advanced Nanotech ranks #648 out of 787 companies for Days Inventory. This places Taiwan Advanced Nanotech in the lower half of its industry. The industry median Days Inventory is 179.47. Taiwan Advanced Nanotech's value of 261.62 is 45.8% above this benchmark. Historically, Taiwan Advanced Nanotech's own Days Inventory has ranged from 65.44 to 510.02 over the past decade. While the company's 10-year median is 229.75 vs. the industry median of 179.47, Taiwan Advanced Nanotech 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 Days Inventory for a Medical Devices & Instruments company?
The median Days Inventory among Medical Devices & Instruments companies is 179.47, based on 787 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. Taiwan Advanced Nanotech's current Days Inventory of 261.62 is 45.8% 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 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 Taiwan Advanced Nanotech and its competitors. For the Medical Devices & Instruments industry, the median Days Inventory is 179.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Advanced Nanotech's current Days Inventory is 261.62, which is 14% above median its own 10-year median of 229.75. 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$13.39, compared to a current price of NT$13.30 — trading 0.7% below its estimated fair value. The current Days Inventory is 261.62, which is 14% above median its 10-year median of 229.75 and 45.8% above the Medical Devices & Instruments industry median of 179.47. Taiwan Advanced Nanotech's overall GF Score™ is 60/100 with 4 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 Taiwan Advanced Nanotech (ROCO:6797), the current Days Inventory is 261.62 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 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 0.7% below its estimated GF Value™ of NT$13.39. GuruFocus considers Taiwan Advanced Nanotech to be Fairly Valued.

Key valuation signals for ROCO:6797:

  • Days Inventory: 261.62 (14% above median its 10-year median of 229.75)
  • GF Value™: NT$13.39 vs. price of NT$13.30 (0.7% below fair value)
  • GF Score™: 60/100 with 4 warning signs
  • Industry Position: 45.8% above the Medical Devices & Instruments median (#648 of 787)

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 Business Description

Address No. 188, Wenhe Road, 6th Floor, Leshan Lane, Guishan District, Taoyuan City, TWN, 330
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.
60GF Score

Get the complete analysis for ROCO:6797

Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$13.30
Price
NT$13.39
GF Value