APAC Opto Electronics (ROCO:4908) Days Inventory: 160.88 (As of Dec. 2025) — 11% Above Median

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ROCO:4908 APAC Opto Electronics Inc ROCO:4908
64 GF Score
Price NT$151.50
GF Value NT$74.36
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is APAC Opto Electronics Days Inventory?

APAC Opto Electronics ROCO:4908 -2.57% 64 Days Inventory is 160.88 as of Dec. 2025, which is 11% above its 10-year median of 145.53. GuruFocus rates ROCO:4908 with a GF Score™ of 64/100 and a GF Value™ of NT$74.36 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 2,419 Hardware companies, APAC Opto Electronics ranks worse than 71.02% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). APAC Opto Electronics's Average Total Inventories for the three months ended in Dec. 2025 was NT$172.8 Mil. APAC Opto Electronics's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$98.0 Mil. Hence, APAC Opto Electronics's Days Inventory for the three months ended in Dec. 2025 was 160.88.

The historical rank and industry rank for APAC Opto Electronics's Days Inventory or its related term are showing as below:

ROCO:4908' s Days Inventory Range Over the Past 10 Years
Min: 104.3   Med: 145.53   Max: 179.77
Current: 141.97

During the past 13 years, APAC Opto Electronics's highest Days Inventory was 179.77. The lowest was 104.30. And the median was 145.53.

ROCO:4908's Days Inventory is ranked worse than
71.02% of 2419 companies
in the Hardware industry
Industry Median: 94.24 vs ROCO:4908: 141.97

APAC Opto Electronics's Days Inventory increased from Dec. 2024 (94.77) to Dec. 2025 (160.88). It might indicate that APAC Opto Electronics's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. APAC Opto Electronics's Inventory Turnover for the three months ended in Dec. 2025 was 0.57.

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. APAC Opto Electronics's Inventory-to-Revenue for the three months ended in Dec. 2025 was 0.94.


APAC Opto Electronics  (ROCO:4908) 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.

APAC Opto Electronics'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.

APAC Opto Electronics'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.


APAC Opto Electronics Days Inventory Related Terms


APAC Opto Electronics Days Inventory Historical Data

* Premium members only.

The historical data trend for APAC Opto Electronics'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.

APAC Opto Electronics Days Inventory Chart

APAC Opto Electronics 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 173.95 179.77 152.53 124.63 139.03

APAC Opto Electronics 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 94.77 149.35 141.14 124.47 160.88

ROCO:4908 vs CSCO, CIEN, MSI: Days Inventory Comparison

For the Communication Equipment subindustry, APAC Opto Electronics'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.


APAC Opto Electronics Days Inventory vs Hardware Industry

For the Hardware industry and Technology sector, APAC Opto Electronics's Days Inventory distribution charts can be found below:

* The bar in red indicates where APAC Opto Electronics's Days Inventory falls into.


ROCO:4908
64GF Score
APAC Opto Electronics Inc ROCO:4908
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

APAC Opto Electronics Days Inventory Calculation

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

APAC Opto Electronics'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
=( (144.562 + 182.334) / 2 ) / 429.118*365
=163.448 / 429.118*365
=139.03

APAC Opto Electronics'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
=( (163.293 + 182.334) / 2 ) / 98.018*365 / 4
=172.8135 / 98.018*365 / 4
=160.88

* 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 160.88 mean?
APAC Opto Electronics (ROCO:4908) has a Days Inventory of 160.88 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on APAC Opto Electronics and its competitors. This is 11% above median its historical median of 145.53. Over the past decade, APAC Opto Electronics' Days Inventory has ranged from 104.30 to 179.77. According to the industry distribution chart, APAC Opto Electronics ranks #1718 out of 2419 companies in the Hardware industry, placing it in the top 71%.
Is APAC Opto Electronics' Days Inventory too high?
APAC Opto Electronics' current Days Inventory of 160.88 is 11% above median its 10-year median of 145.53. Over the past 10 years, this metric has ranged from a low of 104.30 to a high of 179.77. The Hardware industry median Days Inventory is 94.24. APAC Opto Electronics' value of 160.88 is 70.7% above this industry median. Based on the distribution chart, APAC Opto Electronics ranks #1718 out of 2419 companies in the Hardware industry, which is below the industry midpoint. Overall, APAC Opto Electronics has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does APAC Opto Electronics' Days Inventory compare to CSCO and CIEN?
According to the Hardware industry distribution chart, APAC Opto Electronics ranks #1718 out of 2419 companies for Days Inventory. This places APAC Opto Electronics in the lower half of its industry. The industry median Days Inventory is 94.24. APAC Opto Electronics' value of 160.88 is 70.7% above this benchmark. Historically, APAC Opto Electronics' own Days Inventory has ranged from 104.30 to 179.77 over the past decade. While the company's 10-year median is 145.53 vs. the industry median of 94.24, APAC Opto Electronics 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 94.24, based on 2,419 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. APAC Opto Electronics's current Days Inventory of 160.88 is 70.7% 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 APAC Opto Electronics and its competitors. For the Hardware industry, the median Days Inventory is 94.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. APAC Opto Electronics's current Days Inventory is 160.88, which is 11% above median its own 10-year median of 145.53. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is APAC Opto Electronics stock overvalued right now?
Based on GuruFocus' analysis, APAC Opto Electronics (ROCO:4908) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$74.36, compared to a current price of NT$151.50 — trading 103.7% above its estimated fair value. The current Days Inventory is 160.88, which is 11% above median its 10-year median of 145.53 and 70.7% above the Hardware industry median of 94.24. APAC Opto Electronics' overall GF Score™ is 64/100 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 APAC Opto Electronics (ROCO:4908), the current Days Inventory is 160.88 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 APAC Opto Electronics (ROCO:4908) Overvalued in 2026?

Based on GuruFocus' analysis, APAC Opto Electronics stock appears to be overvalued. The current stock price of NT$151.50 is trading 103.7% above its estimated GF Value™ of NT$74.36. GuruFocus considers APAC Opto Electronics to be Significantly Overvalued.

Key valuation signals for ROCO:4908:

  • Days Inventory: 160.88 (11% above median its 10-year median of 145.53)
  • GF Value™: NT$74.36 vs. price of NT$151.50 (103.7% above fair value)
  • GF Score™: 64/100 with 2 warning signs
  • Industry Position: 70.7% above the Hardware median (#1718 of 2419)

No single metric tells the full story. See the ROCO:4908 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


APAC Opto Electronics Business Description

Address 3 Tzu Chiang Road, Hsinchu Industrial Park, Hukow, Hsinchu Hsien, TWN
APAC Opto Electronics Inc is a manufacturer of wired and wireless communication equipment and electronic components, and the wholesale and retail of telecommunications equipment and electronic materials. The products of the company include optical extender modules, optical transceiver modules, Optical extender modules, and copper transceiver modules.
64GF Score

Get the complete analysis for ROCO:4908

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

NT$151.50
Price
NT$74.36
GF Value