Tradetool Auto Co (ROCO:3685) Days Inventory: 53.91 (As of Dec. 2025) — 30% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

ROCO:3685 Tradetool Auto Co Ltd ROCO:3685
48 GF Score
Price NT$39.60
GF Value NT$15.28
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Tradetool Auto Co Days Inventory?

Tradetool Auto Co ROCO:3685 -1.00% 48 Days Inventory is 53.91 as of Dec. 2025, which is 30% below its 10-year median of 77.44. GuruFocus rates ROCO:3685 with a GF Score™ of 48/100 and a GF Value™ of NT$15.28 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,290 Vehicles & Parts companies, Tradetool Auto Co ranks better than 58.06% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Tradetool Auto Co's Average Total Inventories for the three months ended in Dec. 2025 was NT$188 Mil. Tradetool Auto Co's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$319 Mil. Hence, Tradetool Auto Co's Days Inventory for the three months ended in Dec. 2025 was 53.91.

The historical rank and industry rank for Tradetool Auto Co's Days Inventory or its related term are showing as below:

ROCO:3685' s Days Inventory Range Over the Past 10 Years
Min: 35.68   Med: 77.44   Max: 85.73
Current: 70.57

During the past 13 years, Tradetool Auto Co's highest Days Inventory was 85.73. The lowest was 35.68. And the median was 77.44.

ROCO:3685's Days Inventory is ranked better than
58.06% of 1290 companies
in the Vehicles & Parts industry
Industry Median: 80.43 vs ROCO:3685: 70.57

Tradetool Auto Co's Days Inventory declined from Dec. 2024 (58.00) to Dec. 2025 (53.91).

Inventory Turnover measures how fast the company turns over its inventory within a year. Tradetool Auto Co's Inventory Turnover for the three months ended in Dec. 2025 was 1.69.

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. Tradetool Auto Co's Inventory-to-Revenue for the three months ended in Dec. 2025 was 0.46.


Tradetool Auto Co  (ROCO:3685) 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.

Tradetool Auto Co's Inventory Turnover for the three 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.

Tradetool Auto Co's Inventory to Revenue for the three 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.


Tradetool Auto Co Days Inventory Related Terms


Tradetool Auto Co Days Inventory Historical Data

* Premium members only.

The historical data trend for Tradetool Auto Co'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.

Tradetool Auto Co Days Inventory Chart

Tradetool Auto Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 84.65 85.73 79.09 76.23 72.67

Tradetool Auto Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only 58.00 86.06 75.22 74.32 53.91

ROCO:3685 vs ORLY, AZO: Days Inventory Comparison

For the Auto Parts subindustry, Tradetool Auto 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.


Tradetool Auto Co Days Inventory vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Tradetool Auto Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where Tradetool Auto Co's Days Inventory falls into.


ROCO:3685
48GF Score
Tradetool Auto Co Ltd ROCO:3685
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tradetool Auto Co Days Inventory Calculation

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

Tradetool Auto Co'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
=( (184.405 + 192.79) / 2 ) / 947.294*365
=188.5975 / 947.294*365
=72.67

Tradetool Auto Co'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: Sep. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count ) / Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=( (183.531 + 192.79) / 2 ) / 318.514*365 / 4
=188.1605 / 318.514*365 / 4
=53.91

* 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 53.91 mean?
Tradetool Auto Co (ROCO:3685) has a Days Inventory of 53.91 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Tradetool Auto Co and its competitors. This is 30% below median its historical median of 77.44. Over the past decade, Tradetool Auto Co's Days Inventory has ranged from 35.68 to 85.73. According to the industry distribution chart, Tradetool Auto Co ranks #541 out of 1290 companies in the Vehicles & Parts industry, placing it in the top 41.9%.
Is Tradetool Auto Co's Days Inventory too high?
Tradetool Auto Co's current Days Inventory of 53.91 is 30% below median its 10-year median of 77.44. Over the past 10 years, this metric has ranged from a low of 35.68 to a high of 85.73. The Vehicles & Parts industry median Days Inventory is 80.43. Tradetool Auto Co's value of 53.91 is 33% below this industry median. Based on the distribution chart, Tradetool Auto Co ranks #541 out of 1290 companies in the Vehicles & Parts industry, which is above the industry midpoint. Overall, Tradetool Auto Co has a GF Score™ of 48/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tradetool Auto Co's Days Inventory compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Tradetool Auto Co ranks #541 out of 1290 companies for Days Inventory. This puts Tradetool Auto Co in the upper half of its industry. The industry median Days Inventory is 80.43. Tradetool Auto Co's value of 53.91 is 33% below this benchmark. Historically, Tradetool Auto Co's own Days Inventory has ranged from 35.68 to 85.73 over the past decade. While the company's 10-year median is 77.44 vs. the industry median of 80.43, Tradetool Auto 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 Vehicles & Parts company?
The median Days Inventory among Vehicles & Parts companies is 80.43, based on 1,290 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. Tradetool Auto Co's current Days Inventory of 53.91 is 33% 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 Tradetool Auto Co and its competitors. For the Vehicles & Parts industry, the median Days Inventory is 80.43 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tradetool Auto Co's current Days Inventory is 53.91, which is 30% below median its own 10-year median of 77.44. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tradetool Auto Co stock overvalued right now?
Based on GuruFocus' analysis, Tradetool Auto Co (ROCO:3685) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$15.28, compared to a current price of NT$39.60 — trading 159.2% above its estimated fair value. The current Days Inventory is 53.91, which is 30% below median its 10-year median of 77.44 and 33% below the Vehicles & Parts industry median of 80.43. Tradetool Auto Co's overall GF Score™ is 48/100 with 2 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 Tradetool Auto Co (ROCO:3685), the current Days Inventory is 53.91 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 Tradetool Auto Co (ROCO:3685) Overvalued in 2026?

Based on GuruFocus' analysis, Tradetool Auto Co stock appears to be overvalued. The current stock price of NT$39.60 is trading 159.2% above its estimated GF Value™ of NT$15.28. GuruFocus considers Tradetool Auto Co to be Significantly Overvalued.

Key valuation signals for ROCO:3685:

  • Days Inventory: 53.91 (30% below median its 10-year median of 77.44)
  • GF Value™: NT$15.28 vs. price of NT$39.60 (159.2% above fair value)
  • GF Score™: 48/100 with 2 warning signs
  • Industry Position: 33% below the Vehicles & Parts median (#541 of 1290)

No single metric tells the full story. See the ROCO:3685 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tradetool Auto Co Business Description

Address No. 213 Chaofu Road, Room No. 7, 4th Floor, Xitun District, Taichung City, TWN, 407
Tradetool Auto Co Ltd is engaged in manufacturing and trading light guide plates, automotive stamping and welding parts, and developing and trading related molds. The company's department includes: Optical Injection Component Department, Metal Parts Stamping Department, Solar Energy Business Department, Construction and Investment Business Department. The company generates the majority of its revenue from the Metal Parts Stamping Department, which is engaged in body metal stamping and welding, trading, and the development and trading of related molds.
48GF Score

Get the complete analysis for ROCO:3685

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

NT$39.60
Price
NT$15.28
GF Value