C.T.I. Traffic Industries Co (ROCO:2230) Days Inventory: 31.35 (As of Dec. 2025) — 80% 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:2230 C.T.I. Traffic Industries Co Ltd ROCO:2230
58 GF Score
Price NT$22.35
GF Value NT$226.27
Valuation Possible Value Trap
! 6 Warning Signs
View Full Analysis

What is C.T.I. Traffic Industries Co Days Inventory?

C.T.I. Traffic Industries Co ROCO:2230 -1.76% 58 Days Inventory is 31.35 as of Dec. 2025, which is 80% below its 10-year median of 160.08. GuruFocus rates ROCO:2230 with a GF Score™ of 58/100 and a GF Value™ of NT$226.27 (Possible Value Trap). The stock has 6 warning signs investors should review. Among 1,290 Vehicles & Parts companies, C.T.I. Traffic Industries Co ranks better than 83.02% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). C.T.I. Traffic Industries Co's Average Total Inventories for the three months ended in Dec. 2025 was NT$240 Mil. C.T.I. Traffic Industries Co's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$698 Mil. Hence, C.T.I. Traffic Industries Co's Days Inventory for the three months ended in Dec. 2025 was 31.35.

The historical rank and industry rank for C.T.I. Traffic Industries Co's Days Inventory or its related term are showing as below:

ROCO:2230' s Days Inventory Range Over the Past 10 Years
Min: 41.63   Med: 160.08   Max: 190.52
Current: 41.63

During the past 13 years, C.T.I. Traffic Industries Co's highest Days Inventory was 190.52. The lowest was 41.63. And the median was 160.08.

ROCO:2230's Days Inventory is ranked better than
83.02% of 1290 companies
in the Vehicles & Parts industry
Industry Median: 80.43 vs ROCO:2230: 41.63

C.T.I. Traffic Industries Co's Days Inventory increased from Dec. 2024 (22.74) to Dec. 2025 (31.35). It might indicate that C.T.I. Traffic Industries Co's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. C.T.I. Traffic Industries Co's Inventory Turnover for the three months ended in Dec. 2025 was 2.91.

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. C.T.I. Traffic Industries Co's Inventory-to-Revenue for the three months ended in Dec. 2025 was 0.33.


C.T.I. Traffic Industries Co  (ROCO:2230) 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.

C.T.I. Traffic Industries 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.

C.T.I. Traffic Industries 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.


C.T.I. Traffic Industries Co Days Inventory Related Terms


C.T.I. Traffic Industries Co Days Inventory Historical Data

* Premium members only.

The historical data trend for C.T.I. Traffic Industries 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.

C.T.I. Traffic Industries Co Days Inventory Chart

C.T.I. Traffic Industries 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 165.32 190.52 166.48 47.18 44.26

C.T.I. Traffic Industries 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 22.74 43.93 63.54 39.08 31.35

ROCO:2230 vs ORLY, AZO: Days Inventory Comparison

For the Auto Parts subindustry, C.T.I. Traffic Industries 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.


C.T.I. Traffic Industries Co Days Inventory vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, C.T.I. Traffic Industries Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where C.T.I. Traffic Industries Co's Days Inventory falls into.


ROCO:2230
58GF Score
C.T.I. Traffic Industries Co Ltd ROCO:2230
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

C.T.I. Traffic Industries Co Days Inventory Calculation

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

C.T.I. Traffic Industries 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
=( (203.77 + 254.769) / 2 ) / 1890.824*365
=229.2695 / 1890.824*365
=44.26

C.T.I. Traffic Industries 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
=( (224.773 + 254.769) / 2 ) / 697.844*365 / 4
=239.771 / 697.844*365 / 4
=31.35

* 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 31.35 mean?
C.T.I. Traffic Industries Co (ROCO:2230) has a Days Inventory of 31.35 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on C.T.I. Traffic Industries Co and its competitors. This is 80% below median its historical median of 160.08. Over the past decade, C.T.I. Traffic Industries Co's Days Inventory has ranged from 41.63 to 190.52. According to the industry distribution chart, C.T.I. Traffic Industries Co ranks #219 out of 1290 companies in the Vehicles & Parts industry, placing it in the top 17%.
Is C.T.I. Traffic Industries Co's Days Inventory too high?
C.T.I. Traffic Industries Co's current Days Inventory of 31.35 is 80% below median its 10-year median of 160.08. Over the past 10 years, this metric has ranged from a low of 41.63 to a high of 190.52. The Vehicles & Parts industry median Days Inventory is 80.43. C.T.I. Traffic Industries Co's value of 31.35 is 61% below this industry median. Based on the distribution chart, C.T.I. Traffic Industries Co ranks #219 out of 1290 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, C.T.I. Traffic Industries Co has a GF Score™ of 58/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does C.T.I. Traffic Industries Co's Days Inventory compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, C.T.I. Traffic Industries Co ranks #219 out of 1290 companies for Days Inventory. This places C.T.I. Traffic Industries Co in the top 17% of its industry — outperforming the majority of peers. The industry median Days Inventory is 80.43. C.T.I. Traffic Industries Co's value of 31.35 is 61% below this benchmark. Historically, C.T.I. Traffic Industries Co's own Days Inventory has ranged from 41.63 to 190.52 over the past decade. While the company's 10-year median is 160.08 vs. the industry median of 80.43, C.T.I. Traffic Industries 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. C.T.I. Traffic Industries Co's current Days Inventory of 31.35 is 61% 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 C.T.I. Traffic Industries 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. C.T.I. Traffic Industries Co's current Days Inventory is 31.35, which is 80% below median its own 10-year median of 160.08. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is C.T.I. Traffic Industries Co stock overvalued right now?
Based on GuruFocus' analysis, C.T.I. Traffic Industries Co (ROCO:2230) is currently considered Possible Value Trap. The stock's GF Value™ is NT$226.27, compared to a current price of NT$22.35 — trading 90.1% below its estimated fair value. The current Days Inventory is 31.35, which is 80% below median its 10-year median of 160.08 and 61% below the Vehicles & Parts industry median of 80.43. C.T.I. Traffic Industries Co's overall GF Score™ is 58/100 with 6 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 C.T.I. Traffic Industries Co (ROCO:2230), the current Days Inventory is 31.35 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 C.T.I. Traffic Industries Co (ROCO:2230) Overvalued in 2026?

Based on GuruFocus' analysis, C.T.I. Traffic Industries Co stock appears to be undervalued. The current stock price of NT$22.35 is trading 90.1% below its estimated GF Value™ of NT$226.27. GuruFocus considers C.T.I. Traffic Industries Co to be Possible Value Trap.

Key valuation signals for ROCO:2230:

  • Days Inventory: 31.35 (80% below median its 10-year median of 160.08)
  • GF Value™: NT$226.27 vs. price of NT$22.35 (90.1% below fair value)
  • GF Score™: 58/100 with 6 warning signs
  • Industry Position: 61% below the Vehicles & Parts median (#219 of 1290)

No single metric tells the full story. See the ROCO:2230 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


C.T.I. Traffic Industries Co Business Description

Address No. 10, Shijian Street, Second Town, Guantian District, Tainan, TWN
C.T.I. Traffic Industries Co Ltd is an engine parts manufacturer in Taiwan. It produces piston rings, oil rings, installers of piston rings, and supplies piston kits, engine valves, oil seals, valve seals, engine gasket components, and automotive timing kits.
58GF Score

Get the complete analysis for ROCO:2230

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

NT$22.35
Price
NT$226.27
GF Value