Good Will Instrument Co (TPE:2423) Days Inventory: 226.41 (As of Dec. 2025) — Near Median


TPE:2423 Good Will Instrument Co Ltd TPE:2423
75 GF Score
Price NT$79.70
GF Value NT$41.47
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Good Will Instrument Co Days Inventory?

Good Will Instrument Co TPE:2423 75 Days Inventory is 226.41 as of Dec. 2025, which is 2% above its 10-year median of 221.74. GuruFocus rates TPE:2423 with a GF Score™ of 75/100 and a GF Value™ of NT$41.47 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 2,420 Hardware companies, Good Will Instrument Co ranks worse than 88.72% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Good Will Instrument Co's Average Total Inventories for the three months ended in Dec. 2025 was NT$1,030 Mil. Good Will Instrument Co's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$415 Mil. Hence, Good Will Instrument Co's Days Inventory for the three months ended in Dec. 2025 was 226.41.

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

TPE:2423' s Days Inventory Range Over the Past 10 Years
Min: 203.41   Med: 221.74   Max: 267.09
Current: 248.27

During the past 13 years, Good Will Instrument Co's highest Days Inventory was 267.09. The lowest was 203.41. And the median was 221.74.

TPE:2423's Days Inventory is ranked worse than
88.72% of 2420 companies
in the Hardware industry
Industry Median: 94.265 vs TPE:2423: 248.27

Good Will Instrument Co's Days Inventory increased from Dec. 2024 (206.09) to Dec. 2025 (226.41). It might indicate that Good Will Instrument Co's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Good Will Instrument Co's Inventory Turnover for the three months ended in Dec. 2025 was 0.40.

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. Good Will Instrument Co's Inventory-to-Revenue for the three months ended in Dec. 2025 was 1.20.


Good Will Instrument Co  (TPE:2423) 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.

Good Will Instrument 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.

Good Will Instrument 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.


Good Will Instrument Co Days Inventory Related Terms


Good Will Instrument Co Days Inventory Historical Data

* Premium members only.

The historical data trend for Good Will Instrument 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.

Good Will Instrument Co Days Inventory Chart

Good Will Instrument 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 207.12 251.93 267.09 242.81 238.61

Good Will Instrument 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 206.09 256.54 258.86 267.25 226.41

TPE:2423 vs COHR, KEYS, GRMN: Days Inventory Comparison

For the Scientific & Technical Instruments subindustry, Good Will Instrument 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.


Good Will Instrument Co Days Inventory vs Hardware Industry

For the Hardware industry and Technology sector, Good Will Instrument Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where Good Will Instrument Co's Days Inventory falls into.


TPE:2423
75GF Score
Good Will Instrument Co Ltd TPE:2423
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Good Will Instrument Co Days Inventory Calculation

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

Good Will Instrument 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
=( (809.747 + 1001.547) / 2 ) / 1385.378*365
=905.647 / 1385.378*365
=238.61

Good Will Instrument 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
=( (1059.229 + 1001.547) / 2 ) / 415.275*365 / 4
=1030.388 / 415.275*365 / 4
=226.41

* 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 226.41 mean?
Good Will Instrument Co (TPE:2423) has a Days Inventory of 226.41 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Good Will Instrument Co and its competitors. This is near median its historical median of 221.74. Over the past decade, Good Will Instrument Co's Days Inventory has ranged from 203.41 to 267.09. According to the industry distribution chart, Good Will Instrument Co ranks #2147 out of 2420 companies in the Hardware industry, placing it in the top 88.7%.
Is Good Will Instrument Co's Days Inventory too high?
Good Will Instrument Co's current Days Inventory of 226.41 is near median its 10-year median of 221.74. Over the past 10 years, this metric has ranged from a low of 203.41 to a high of 267.09. The Hardware industry median Days Inventory is 94.27. Good Will Instrument Co's value of 226.41 is 140.2% above this industry median. Based on the distribution chart, Good Will Instrument Co ranks #2147 out of 2420 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Good Will Instrument Co has a GF Score™ of 75/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Good Will Instrument Co's Days Inventory compare to COHR and KEYS?
According to the Hardware industry distribution chart, Good Will Instrument Co ranks #2147 out of 2420 companies for Days Inventory. This places Good Will Instrument Co in the lower half of its industry. The industry median Days Inventory is 94.27. Good Will Instrument Co's value of 226.41 is 140.2% above this benchmark. Historically, Good Will Instrument Co's own Days Inventory has ranged from 203.41 to 267.09 over the past decade. While the company's 10-year median is 221.74 vs. the industry median of 94.27, Good Will Instrument Co 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 94.27, based on 2,420 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. Good Will Instrument Co's current Days Inventory of 226.41 is 140.2% 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 Good Will Instrument Co and its competitors. For the Hardware industry, the median Days Inventory is 94.27 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Good Will Instrument Co's current Days Inventory is 226.41, which is near median its own 10-year median of 221.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Good Will Instrument Co stock overvalued right now?
Based on GuruFocus' analysis, Good Will Instrument Co (TPE:2423) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$41.47, compared to a current price of NT$79.70 — trading 92.2% above its estimated fair value. The current Days Inventory is 226.41, which is near median its 10-year median of 221.74 and 140.2% above the Hardware industry median of 94.27. Good Will Instrument Co's overall GF Score™ is 75/100 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 Good Will Instrument Co (TPE:2423), the current Days Inventory is 226.41 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 Good Will Instrument Co (TPE:2423) Overvalued in 2026?

Based on GuruFocus' analysis, Good Will Instrument Co stock appears to be overvalued. The current stock price of NT$79.70 is trading 92.2% above its estimated GF Value™ of NT$41.47. GuruFocus considers Good Will Instrument Co to be Significantly Overvalued.

Key valuation signals for TPE:2423:

  • Days Inventory: 226.41 (near median its 10-year median of 221.74)
  • GF Value™: NT$41.47 vs. price of NT$79.70 (92.2% above fair value)
  • GF Score™: 75/100 with 4 warning signs
  • Industry Position: 140.2% above the Hardware median (#2147 of 2420)

No single metric tells the full story. See the TPE:2423 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Good Will Instrument Co Business Description

Address Jhongsing Road, No. 7-1, Tucheng District, New Taipei City, TWN, 236
Good Will Instrument Co Ltd manufactures and sells electrical testing instruments, communication equipment, and related products. Its products include oscilloscopes, spectrum analyzers, signal sources, power supplies, public broadcasting and video monitoring systems, environmental testing equipment, constant temperature and humidity equipment, and vibration test equipment, among others. Geographically, the company generates a majority of its revenue from China and the rest from Japan, Taiwan, America, Europe, and other countries.
75GF Score

Get the complete analysis for TPE:2423

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

NT$79.70
Price
NT$41.47
GF Value