King Polytechnic Engineering Co (ROCO:6122) Days Inventory: 0.09 (As of Dec. 2025) — 99% 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:6122 King Polytechnic Engineering Co Ltd ROCO:6122
84 GF Score
Price NT$49.80
GF Value NT$53.15
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is King Polytechnic Engineering Co Days Inventory?

King Polytechnic Engineering Co ROCO:6122 -1.78% 84 Days Inventory is 0.09 as of Dec. 2025, which is 99% below its 10-year median of 7.80. GuruFocus rates ROCO:6122 with a GF Score™ of 84/100 and a GF Value™ of NT$53.15 (Fairly Valued). The stock has 4 warning signs investors should review. Among 1,489 Construction companies, King Polytechnic Engineering Co ranks better than 99.33% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). King Polytechnic Engineering Co's Average Total Inventories for the three months ended in Dec. 2025 was NT$1 Mil. King Polytechnic Engineering Co's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$1,006 Mil. Hence, King Polytechnic Engineering Co's Days Inventory for the three months ended in Dec. 2025 was 0.09.

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

ROCO:6122' s Days Inventory Range Over the Past 10 Years
Min: 0.08   Med: 7.8   Max: 51.03
Current: 0.1

During the past 13 years, King Polytechnic Engineering Co's highest Days Inventory was 51.03. The lowest was 0.08. And the median was 7.80.

ROCO:6122's Days Inventory is ranked better than
99.33% of 1489 companies
in the Construction industry
Industry Median: 49.83 vs ROCO:6122: 0.10

King Polytechnic Engineering Co's Days Inventory declined from Dec. 2024 (0.10) to Dec. 2025 (0.09).

Inventory Turnover measures how fast the company turns over its inventory within a year. King Polytechnic Engineering Co's Inventory Turnover for the three months ended in Dec. 2025 was 1,025.72.

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. King Polytechnic Engineering Co's Inventory-to-Revenue for the three months ended in Dec. 2025 was 0.00.


King Polytechnic Engineering Co  (ROCO:6122) 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.

King Polytechnic Engineering 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.

King Polytechnic Engineering 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.


King Polytechnic Engineering Co Days Inventory Related Terms


King Polytechnic Engineering Co Days Inventory Historical Data

* Premium members only.

The historical data trend for King Polytechnic Engineering 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.

King Polytechnic Engineering Co Days Inventory Chart

King Polytechnic Engineering 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 0.21 0.16 0.08 0.10 0.00

King Polytechnic Engineering 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 0.10 0.11 0.10 0.10 0.09

ROCO:6122 vs PWR, FIX, EME: Days Inventory Comparison

For the Engineering & Construction subindustry, King Polytechnic Engineering 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.


King Polytechnic Engineering Co Days Inventory vs Construction Industry

For the Construction industry and Industrials sector, King Polytechnic Engineering Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where King Polytechnic Engineering Co's Days Inventory falls into.


ROCO:6122
84GF Score
King Polytechnic Engineering Co Ltd ROCO:6122
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

King Polytechnic Engineering Co Days Inventory Calculation

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

King Polytechnic Engineering 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
=( (0 + 0) / 1 ) / 3573.899*365
=0 / 3573.899*365
=0.00

King Polytechnic Engineering 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
=( (0.981 + 0) / 1 ) / 1006.231*365 / 4
=0.981 / 1006.231*365 / 4
=0.09

* 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 0.09 mean?
King Polytechnic Engineering Co (ROCO:6122) has a Days Inventory of 0.09 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on King Polytechnic Engineering Co and its competitors. This is 99% below median its historical median of 7.80. Over the past decade, King Polytechnic Engineering Co's Days Inventory has ranged from 0.08 to 51.03. According to the industry distribution chart, King Polytechnic Engineering Co ranks #10 out of 1489 companies in the Construction industry, placing it in the top 0.7%.
Is King Polytechnic Engineering Co's Days Inventory too high?
King Polytechnic Engineering Co's current Days Inventory of 0.09 is 99% below median its 10-year median of 7.80. Over the past 10 years, this metric has ranged from a low of 0.08 to a high of 51.03. The Construction industry median Days Inventory is 49.83. King Polytechnic Engineering Co's value of 0.09 is 99.8% below this industry median. Based on the distribution chart, King Polytechnic Engineering Co ranks #10 out of 1489 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, King Polytechnic Engineering Co has a GF Score™ of 84/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does King Polytechnic Engineering Co's Days Inventory compare to PWR and FIX?
According to the Construction industry distribution chart, King Polytechnic Engineering Co ranks #10 out of 1489 companies for Days Inventory. This places King Polytechnic Engineering Co in the top 1% of its industry — outperforming the majority of peers. The industry median Days Inventory is 49.83. King Polytechnic Engineering Co's value of 0.09 is 99.8% below this benchmark. Historically, King Polytechnic Engineering Co's own Days Inventory has ranged from 0.08 to 51.03 over the past decade. While the company's 10-year median is 7.80 vs. the industry median of 49.83, King Polytechnic Engineering 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 Construction company?
The median Days Inventory among Construction companies is 49.83, based on 1,489 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. King Polytechnic Engineering Co's current Days Inventory of 0.09 is 99.8% 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 King Polytechnic Engineering Co and its competitors. For the Construction industry, the median Days Inventory is 49.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. King Polytechnic Engineering Co's current Days Inventory is 0.09, which is 99% below median its own 10-year median of 7.80. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is King Polytechnic Engineering Co stock overvalued right now?
Based on GuruFocus' analysis, King Polytechnic Engineering Co (ROCO:6122) is currently considered Fairly Valued. The stock's GF Value™ is NT$53.15, compared to a current price of NT$49.80 — trading 6.3% below its estimated fair value. The current Days Inventory is 0.09, which is 99% below median its 10-year median of 7.80 and 99.8% below the Construction industry median of 49.83. King Polytechnic Engineering Co's overall GF Score™ is 84/100 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 King Polytechnic Engineering Co (ROCO:6122), the current Days Inventory is 0.09 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 King Polytechnic Engineering Co (ROCO:6122) Overvalued in 2026?

Based on GuruFocus' analysis, King Polytechnic Engineering Co stock appears to be undervalued. The current stock price of NT$49.80 is trading 6.3% below its estimated GF Value™ of NT$53.15. GuruFocus considers King Polytechnic Engineering Co to be Fairly Valued.

Key valuation signals for ROCO:6122:

  • Days Inventory: 0.09 (99% below median its 10-year median of 7.80)
  • GF Value™: NT$53.15 vs. price of NT$49.80 (6.3% below fair value)
  • GF Score™: 84/100 with 4 warning signs
  • Industry Position: 99.8% below the Construction median (#10 of 1489)

No single metric tells the full story. See the ROCO:6122 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


King Polytechnic Engineering Co Business Description

Address Ruey Kuang Road, 5th Floor, No. 210, Neihu District, Taipei, TWN, 114
King Polytechnic Engineering Co Ltd is engaged in the design and installation of chemical machinery and sterile dust-free equipment, networking, investment, as well as production, sale, installation, and maintenance of high-tech purification equipment, civil construction, transportation and sale of sediments, trading in construction materials, development, leasing and sale of housing units and buildings, and others.
84GF Score

Get the complete analysis for ROCO:6122

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

NT$49.80
Price
NT$53.15
GF Value