Tainet Communication System (ROCO:4905) Days Inventory: 156.81 (As of Dec. 2025) — 34% Below Median

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ROCO:4905 Tainet Communication System Corp ROCO:4905
55 GF Score
Price NT$66.60
GF Value NT$279.68
Valuation Possible Value Trap
! 7 Warning Signs
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What is Tainet Communication System Days Inventory?

Tainet Communication System ROCO:4905 -2.92% 55 Days Inventory is 156.81 as of Dec. 2025, which is 34% below its 10-year median of 238.40. GuruFocus rates ROCO:4905 with a GF Score™ of 55/100 and a GF Value™ of NT$279.68 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 2,418 Hardware companies, Tainet Communication System ranks worse than 79.03% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Tainet Communication System's Average Total Inventories for the three months ended in Dec. 2025 was NT$263.6 Mil. Tainet Communication System's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$153.4 Mil. Hence, Tainet Communication System's Days Inventory for the three months ended in Dec. 2025 was 156.81.

The historical rank and industry rank for Tainet Communication System's Days Inventory or its related term are showing as below:

ROCO:4905' s Days Inventory Range Over the Past 10 Years
Min: 127.39   Med: 238.4   Max: 347.9
Current: 171.83

During the past 13 years, Tainet Communication System's highest Days Inventory was 347.90. The lowest was 127.39. And the median was 238.40.

ROCO:4905's Days Inventory is ranked worse than
79.03% of 2418 companies
in the Hardware industry
Industry Median: 94.18 vs ROCO:4905: 171.83

Tainet Communication System's Days Inventory increased from Dec. 2024 (150.21) to Dec. 2025 (156.81). It might indicate that Tainet Communication System's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Tainet Communication System's Inventory Turnover for the three months ended in Dec. 2025 was 0.58.

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. Tainet Communication System's Inventory-to-Revenue for the three months ended in Dec. 2025 was 1.28.


Tainet Communication System  (ROCO:4905) 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.

Tainet Communication System'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.

Tainet Communication System'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.


Tainet Communication System Days Inventory Related Terms


Tainet Communication System Days Inventory Historical Data

* Premium members only.

The historical data trend for Tainet Communication System'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.

Tainet Communication System Days Inventory Chart

Tainet Communication System 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 262.18 243.59 347.90 127.39 167.17

Tainet Communication System 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 150.21 214.90 164.97 168.93 156.81

ROCO:4905 vs CSCO, CIEN, MSI: Days Inventory Comparison

For the Communication Equipment subindustry, Tainet Communication System'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.


Tainet Communication System Days Inventory vs Hardware Industry

For the Hardware industry and Technology sector, Tainet Communication System's Days Inventory distribution charts can be found below:

* The bar in red indicates where Tainet Communication System's Days Inventory falls into.


ROCO:4905
55GF Score
Tainet Communication System Corp ROCO:4905
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tainet Communication System Days Inventory Calculation

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

Tainet Communication System'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
=( (218.716 + 275.533) / 2 ) / 539.573*365
=247.1245 / 539.573*365
=167.17

Tainet Communication System'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
=( (251.647 + 275.533) / 2 ) / 153.389*365 / 4
=263.59 / 153.389*365 / 4
=156.81

* 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 156.81 mean?
Tainet Communication System (ROCO:4905) has a Days Inventory of 156.81 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Tainet Communication System and its competitors. This is 34% below median its historical median of 238.40. Over the past decade, Tainet Communication System's Days Inventory has ranged from 127.39 to 347.90. According to the industry distribution chart, Tainet Communication System ranks #1911 out of 2418 companies in the Hardware industry, placing it in the top 79%.
Is Tainet Communication System's Days Inventory too high?
Tainet Communication System's current Days Inventory of 156.81 is 34% below median its 10-year median of 238.40. Over the past 10 years, this metric has ranged from a low of 127.39 to a high of 347.90. The Hardware industry median Days Inventory is 94.18. Tainet Communication System's value of 156.81 is 66.5% above this industry median. Based on the distribution chart, Tainet Communication System ranks #1911 out of 2418 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Tainet Communication System has a GF Score™ of 55/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tainet Communication System's Days Inventory compare to CSCO and CIEN?
According to the Hardware industry distribution chart, Tainet Communication System ranks #1911 out of 2418 companies for Days Inventory. This places Tainet Communication System in the lower half of its industry. The industry median Days Inventory is 94.18. Tainet Communication System's value of 156.81 is 66.5% above this benchmark. Historically, Tainet Communication System's own Days Inventory has ranged from 127.39 to 347.90 over the past decade. While the company's 10-year median is 238.40 vs. the industry median of 94.18, Tainet Communication System 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 Hardware company?
The median Days Inventory among Hardware companies is 94.18, based on 2,418 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. Tainet Communication System's current Days Inventory of 156.81 is 66.5% 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 Tainet Communication System and its competitors. For the Hardware industry, the median Days Inventory is 94.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tainet Communication System's current Days Inventory is 156.81, which is 34% below median its own 10-year median of 238.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tainet Communication System stock overvalued right now?
Based on GuruFocus' analysis, Tainet Communication System (ROCO:4905) is currently considered Possible Value Trap. The stock's GF Value™ is NT$279.68, compared to a current price of NT$66.60 — trading 76.2% below its estimated fair value. The current Days Inventory is 156.81, which is 34% below median its 10-year median of 238.40 and 66.5% above the Hardware industry median of 94.18. Tainet Communication System's overall GF Score™ is 55/100 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 Tainet Communication System (ROCO:4905), the current Days Inventory is 156.81 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 Tainet Communication System (ROCO:4905) Overvalued in 2026?

Based on GuruFocus' analysis, Tainet Communication System stock appears to be undervalued. The current stock price of NT$66.60 is trading 76.2% below its estimated GF Value™ of NT$279.68. GuruFocus considers Tainet Communication System to be Possible Value Trap.

Key valuation signals for ROCO:4905:

  • Days Inventory: 156.81 (34% below median its 10-year median of 238.40)
  • GF Value™: NT$279.68 vs. price of NT$66.60 (76.2% below fair value)
  • GF Score™: 55/100 with 7 warning signs
  • Industry Position: 66.5% above the Hardware median (#1911 of 2418)

No single metric tells the full story. See the ROCO:4905 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tainet Communication System Business Description

Address No.108, Ruiguang Road, 3 floor, Huyuan Li, Neihu District, Taipei, TWN, 114
Tainet Communication System Corp is a manufacturer of digital transmission and switching equipment, data terminal equipment, line interface equipment (including telemetry devices), communication and traffic. Manufacturing, processing, trading and installation engineering business of replacement equipment, programmable power supplies, etc.
55GF Score

Get the complete analysis for ROCO:4905

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

NT$66.60
Price
NT$279.68
GF Value