National Aerospace Fasteners (TPE:3004) Days Inventory: 267.34 (As of Dec. 2025) — 78% Above Median

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TPE:3004 National Aerospace Fasteners Corp TPE:3004
84 GF Score
Price NT$153.50
GF Value NT$143.01
Valuation Fairly Valued
! 9 Warning Signs
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What is National Aerospace Fasteners Days Inventory?

National Aerospace Fasteners TPE:3004 -0.65% 84 Days Inventory is 267.34 as of Dec. 2025, which is 78% above its 10-year median of 150.13. GuruFocus rates TPE:3004 with a GF Score™ of 84/100 and a GF Value™ of NT$143.01 (Fairly Valued). The stock has 9 warning signs investors should review. Among 2,968 Industrial Products companies, National Aerospace Fasteners ranks worse than 86.02% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). National Aerospace Fasteners's Average Total Inventories for the three months ended in Dec. 2025 was NT$2,530 Mil. National Aerospace Fasteners's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$863 Mil. Hence, National Aerospace Fasteners's Days Inventory for the three months ended in Dec. 2025 was 267.34.

The historical rank and industry rank for National Aerospace Fasteners's Days Inventory or its related term are showing as below:

TPE:3004' s Days Inventory Range Over the Past 10 Years
Min: 96.47   Med: 150.13   Max: 264.8
Current: 264.8

During the past 13 years, National Aerospace Fasteners's highest Days Inventory was 264.80. The lowest was 96.47. And the median was 150.13.

TPE:3004's Days Inventory is ranked worse than
86.02% of 2968 companies
in the Industrial Products industry
Industry Median: 119.51 vs TPE:3004: 264.80

National Aerospace Fasteners's Days Inventory increased from Dec. 2024 (247.52) to Dec. 2025 (267.34). It might indicate that National Aerospace Fasteners's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. National Aerospace Fasteners's Inventory Turnover for the three months ended in Dec. 2025 was 0.34.

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. National Aerospace Fasteners's Inventory-to-Revenue for the three months ended in Dec. 2025 was 2.22.


National Aerospace Fasteners  (TPE:3004) 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.

National Aerospace Fasteners'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.

National Aerospace Fasteners'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.


National Aerospace Fasteners Days Inventory Related Terms


National Aerospace Fasteners Days Inventory Historical Data

* Premium members only.

The historical data trend for National Aerospace Fasteners'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.

National Aerospace Fasteners Days Inventory Chart

National Aerospace Fasteners 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 159.87 145.90 155.33 218.39 264.73

National Aerospace Fasteners 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 247.52 259.49 257.69 273.32 267.34

TPE:3004 vs SNA, RBC, LECO: Days Inventory Comparison

For the Tools & Accessories subindustry, National Aerospace Fasteners'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.


National Aerospace Fasteners Days Inventory vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, National Aerospace Fasteners's Days Inventory distribution charts can be found below:

* The bar in red indicates where National Aerospace Fasteners's Days Inventory falls into.


TPE:3004
84GF Score
National Aerospace Fasteners Corp TPE:3004
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

National Aerospace Fasteners Days Inventory Calculation

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

National Aerospace Fasteners'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
=( (1860.812 + 2583.039) / 2 ) / 3063.482*365
=2221.9255 / 3063.482*365
=264.73

National Aerospace Fasteners'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
=( (2476.511 + 2583.039) / 2 ) / 863.464*365 / 4
=2529.775 / 863.464*365 / 4
=267.34

* 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 267.34 mean?
National Aerospace Fasteners (TPE:3004) has a Days Inventory of 267.34 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on National Aerospace Fasteners and its competitors. This is 78% above median its historical median of 150.13. Over the past decade, National Aerospace Fasteners' Days Inventory has ranged from 96.47 to 264.80. According to the industry distribution chart, National Aerospace Fasteners ranks #2553 out of 2968 companies in the Industrial Products industry, placing it in the top 86%.
Is National Aerospace Fasteners' Days Inventory too high?
National Aerospace Fasteners' current Days Inventory of 267.34 is 78% above median its 10-year median of 150.13. Over the past 10 years, this metric has ranged from a low of 96.47 to a high of 264.80. The Industrial Products industry median Days Inventory is 119.51. National Aerospace Fasteners' value of 267.34 is 123.7% above this industry median. Based on the distribution chart, National Aerospace Fasteners ranks #2553 out of 2968 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, National Aerospace Fasteners has a GF Score™ of 84/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does National Aerospace Fasteners' Days Inventory compare to SNA and RBC?
According to the Industrial Products industry distribution chart, National Aerospace Fasteners ranks #2553 out of 2968 companies for Days Inventory. This places National Aerospace Fasteners in the lower half of its industry. The industry median Days Inventory is 119.51. National Aerospace Fasteners' value of 267.34 is 123.7% above this benchmark. Historically, National Aerospace Fasteners' own Days Inventory has ranged from 96.47 to 264.80 over the past decade. While the company's 10-year median is 150.13 vs. the industry median of 119.51, National Aerospace Fasteners 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 an Industrial Products company?
The median Days Inventory among Industrial Products companies is 119.51, based on 2,968 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. National Aerospace Fasteners's current Days Inventory of 267.34 is 123.7% 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 National Aerospace Fasteners and its competitors. For the Industrial Products industry, the median Days Inventory is 119.51 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Aerospace Fasteners's current Days Inventory is 267.34, which is 78% above median its own 10-year median of 150.13. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Aerospace Fasteners stock overvalued right now?
Based on GuruFocus' analysis, National Aerospace Fasteners (TPE:3004) is currently considered Fairly Valued. The stock's GF Value™ is NT$143.01, compared to a current price of NT$153.50 — trading 7.3% above its estimated fair value. The current Days Inventory is 267.34, which is 78% above median its 10-year median of 150.13 and 123.7% above the Industrial Products industry median of 119.51. National Aerospace Fasteners' overall GF Score™ is 84/100 with 9 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 National Aerospace Fasteners (TPE:3004), the current Days Inventory is 267.34 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 National Aerospace Fasteners (TPE:3004) Overvalued in 2026?

Based on GuruFocus' analysis, National Aerospace Fasteners stock appears to be overvalued. The current stock price of NT$153.50 is trading 7.3% above its estimated GF Value™ of NT$143.01. GuruFocus considers National Aerospace Fasteners to be Fairly Valued.

Key valuation signals for TPE:3004:

  • Days Inventory: 267.34 (78% above median its 10-year median of 150.13)
  • GF Value™: NT$143.01 vs. price of NT$153.50 (7.3% above fair value)
  • GF Score™: 84/100 with 9 warning signs
  • Industry Position: 123.7% above the Industrial Products median (#2553 of 2968)

No single metric tells the full story. See the TPE:3004 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


National Aerospace Fasteners Business Description

Address No. 1, Taiping East Road, Pingzhen District, Taoyuan, TWN, 324026
National Aerospace Fasteners Corp engages in the manufacture, processing, agency, trading of various types of fasteners and construction parts and related components of aircraft and automobiles. Aerospace and Industrial products are reportable segments of the company. Majority of the its revenue is being generated from Aerospace segment.
84GF Score

Get the complete analysis for TPE:3004

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

NT$153.50
Price
NT$143.01
GF Value