Oriental System Technology (ROCO:6819) Days Inventory: 157.37 (As of Dec. 2025) — Near Median

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ROCO:6819 Oriental System Technology Inc ROCO:6819
65 GF Score
Price NT$39.20
GF Value NT$24.33
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Oriental System Technology Days Inventory?

Oriental System Technology ROCO:6819 -2.61% 65 Days Inventory is 157.37 as of Dec. 2025, which is 0% below its 10-year median of 157.74. GuruFocus rates ROCO:6819 with a GF Score™ of 65/100 and a GF Value™ of NT$24.33 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 983 Semiconductors companies, Oriental System Technology ranks worse than 67.55% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Oriental System Technology's Average Total Inventories for the six months ended in Dec. 2025 was NT$53.5 Mil. Oriental System Technology's Cost of Goods Sold for the six months ended in Dec. 2025 was NT$62.1 Mil. Hence, Oriental System Technology's Days Inventory for the six months ended in Dec. 2025 was 157.37.

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

ROCO:6819' s Days Inventory Range Over the Past 10 Years
Min: 89.26   Med: 157.74   Max: 342.89
Current: 155.07

During the past 9 years, Oriental System Technology's highest Days Inventory was 342.89. The lowest was 89.26. And the median was 157.74.

ROCO:6819's Days Inventory is ranked worse than
67.55% of 983 companies
in the Semiconductors industry
Industry Median: 112.18 vs ROCO:6819: 155.07

Oriental System Technology's Days Inventory increased from Dec. 2024 (154.45) to Dec. 2025 (157.37). It might indicate that Oriental System Technology's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Oriental System Technology's Inventory Turnover for the six months ended in Dec. 2025 was 1.16.

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. Oriental System Technology's Inventory-to-Revenue for the six months ended in Dec. 2025 was 0.49.


Oriental System Technology  (ROCO:6819) 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.

Oriental System Technology's Inventory Turnover for the six 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.

Oriental System Technology's Inventory to Revenue for the six 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.


Oriental System Technology Days Inventory Related Terms


Oriental System Technology Days Inventory Historical Data

* Premium members only.

The historical data trend for Oriental System Technology'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.

Oriental System Technology Days Inventory Chart

Oriental System Technology Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only 342.89 310.82 184.15 157.74 148.05

Oriental System Technology Semi-Annual Data
Dec17 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 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 144.07 157.41 154.45 159.78 157.37

ROCO:6819 vs NVDA, AVGO, MU: Days Inventory Comparison

For the Semiconductors subindustry, Oriental System Technology'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.


Oriental System Technology Days Inventory vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Oriental System Technology's Days Inventory distribution charts can be found below:

* The bar in red indicates where Oriental System Technology's Days Inventory falls into.


ROCO:6819
65GF Score
Oriental System Technology Inc ROCO:6819
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Oriental System Technology Days Inventory Calculation

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

Oriental System Technology'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
=( (51.842 + 49.315) / 2 ) / 124.695*365
=50.5785 / 124.695*365
=148.05

Oriental System Technology'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: Jun. 2025 ) + Total Inventories (Q: Dec. 2025 )) / count ) / Cost of Goods Sold (Q: Dec. 2025 )*Days in Period
=( (57.773 + 49.315) / 2 ) / 62.096*365 / 2
=53.544 / 62.096*365 / 2
=157.37

* 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 157.37 mean?
Oriental System Technology (ROCO:6819) has a Days Inventory of 157.37 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Oriental System Technology and its competitors. This is near median its historical median of 157.74. Over the past decade, Oriental System Technology's Days Inventory has ranged from 89.26 to 342.89. According to the industry distribution chart, Oriental System Technology ranks #664 out of 983 companies in the Semiconductors industry, placing it in the top 67.5%.
Is Oriental System Technology's Days Inventory too high?
Oriental System Technology's current Days Inventory of 157.37 is near median its 10-year median of 157.74. Over the past 10 years, this metric has ranged from a low of 89.26 to a high of 342.89. The Semiconductors industry median Days Inventory is 112.18. Oriental System Technology's value of 157.37 is 40.3% above this industry median. Based on the distribution chart, Oriental System Technology ranks #664 out of 983 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Oriental System Technology has a GF Score™ of 65/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Oriental System Technology's Days Inventory compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Oriental System Technology ranks #664 out of 983 companies for Days Inventory. This places Oriental System Technology in the lower half of its industry. The industry median Days Inventory is 112.18. Oriental System Technology's value of 157.37 is 40.3% above this benchmark. Historically, Oriental System Technology's own Days Inventory has ranged from 89.26 to 342.89 over the past decade. While the company's 10-year median is 157.74 vs. the industry median of 112.18, Oriental System Technology 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 Semiconductors company?
The median Days Inventory among Semiconductors companies is 112.18, based on 983 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. Oriental System Technology's current Days Inventory of 157.37 is 40.3% 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 Oriental System Technology and its competitors. For the Semiconductors industry, the median Days Inventory is 112.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Oriental System Technology's current Days Inventory is 157.37, which is near median its own 10-year median of 157.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Oriental System Technology stock overvalued right now?
Based on GuruFocus' analysis, Oriental System Technology (ROCO:6819) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$24.33, compared to a current price of NT$39.20 — trading 61.1% above its estimated fair value. The current Days Inventory is 157.37, which is near median its 10-year median of 157.74 and 40.3% above the Semiconductors industry median of 112.18. Oriental System Technology's overall GF Score™ is 65/100 with 2 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 Oriental System Technology (ROCO:6819), the current Days Inventory is 157.37 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 Oriental System Technology (ROCO:6819) Overvalued in 2026?

Based on GuruFocus' analysis, Oriental System Technology stock appears to be overvalued. The current stock price of NT$39.20 is trading 61.1% above its estimated GF Value™ of NT$24.33. GuruFocus considers Oriental System Technology to be Significantly Overvalued.

Key valuation signals for ROCO:6819:

  • Days Inventory: 157.37 (near median its 10-year median of 157.74)
  • GF Value™: NT$24.33 vs. price of NT$39.20 (61.1% above fair value)
  • GF Score™: 65/100 with 2 warning signs
  • Industry Position: 40.3% above the Semiconductors median (#664 of 983)

No single metric tells the full story. See the ROCO:6819 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Oriental System Technology Business Description

Address No. 25, Industry East 9th Road, 2nd Floor, Hsinchu Science Park, Hsinchu, TWN, 30075
Oriental System Technology Inc. is engaged in the manufacturing of sensors. The product portfolio includes thermopile sensors, NDIR gas sensors, and optoelectronic components.
65GF Score

Get the complete analysis for ROCO:6819

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

NT$39.20
Price
NT$24.33
GF Value