Sun Brothers Development Co (ROCO:3489) Days Inventory: 1,190.70 (As of Dec. 2025) — Near Median

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ROCO:3489 Sun Brothers Development Co Ltd ROCO:3489
52 GF Score
Price NT$19.70
GF Value NT$9.15
Valuation Significantly Overvalued
! 9 Warning Signs
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What is Sun Brothers Development Co Days Inventory?

Sun Brothers Development Co ROCO:3489 -0.76% 52 Days Inventory is 1,190.70 as of Dec. 2025, which is 2% above its 10-year median of 1,168.56. GuruFocus rates ROCO:3489 with a GF Score™ of 52/100 and a GF Value™ of NT$9.15 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 1,318 Real Estate companies, Sun Brothers Development Co ranks worse than 70.64% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Sun Brothers Development Co's Average Total Inventories for the three months ended in Dec. 2025 was NT$2,898.8 Mil. Sun Brothers Development Co's Cost of Goods Sold for the three months ended in Dec. 2025 was NT$222.2 Mil. Hence, Sun Brothers Development Co's Days Inventory for the three months ended in Dec. 2025 was 1,190.70.

The historical rank and industry rank for Sun Brothers Development Co's Days Inventory or its related term are showing as below:

ROCO:3489' s Days Inventory Range Over the Past 10 Years
Min: 465.64   Med: 1168.56   Max: 2103.49
Current: 1465.27

During the past 13 years, Sun Brothers Development Co's highest Days Inventory was 2103.49. The lowest was 465.64. And the median was 1168.56.

ROCO:3489's Days Inventory is ranked worse than
70.64% of 1318 companies
in the Real Estate industry
Industry Median: 691.085 vs ROCO:3489: 1465.27

Sun Brothers Development Co's Days Inventory increased from Dec. 2024 (204.03) to Dec. 2025 (1,190.70). It might indicate that Sun Brothers Development Co's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Sun Brothers Development Co's Inventory Turnover for the three months ended in Dec. 2025 was 0.08.

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. Sun Brothers Development Co's Inventory-to-Revenue for the three months ended in Dec. 2025 was 11.73.


Sun Brothers Development Co  (ROCO:3489) 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.

Sun Brothers Development 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.

Sun Brothers Development 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.


Sun Brothers Development Co Days Inventory Related Terms


Sun Brothers Development Co Days Inventory Historical Data

* Premium members only.

The historical data trend for Sun Brothers Development 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.

Sun Brothers Development Co Days Inventory Chart

Sun Brothers Development 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 581.72 1,189.25 1,679.25 465.64 1,470.72

Sun Brothers Development 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 204.03 1,910.01 1,719.38 1,316.55 1,190.70

Sun Brothers Development Co Days Inventory Competitor Comparison

For the Real Estate - Development subindustry, Sun Brothers Development 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.


Sun Brothers Development Co Days Inventory vs Real Estate Industry

For the Real Estate industry and Real Estate sector, Sun Brothers Development Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where Sun Brothers Development Co's Days Inventory falls into.


ROCO:3489
52GF Score
Sun Brothers Development Co Ltd ROCO:3489
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sun Brothers Development Co Days Inventory Calculation

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

Sun Brothers Development 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
=( (2450.206 + 2965.363) / 2 ) / 672.014*365
=2707.7845 / 672.014*365
=1,470.72

Sun Brothers Development 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
=( (2832.211 + 2965.363) / 2 ) / 222.15*365 / 4
=2898.787 / 222.15*365 / 4
=1,190.70

* 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 1,190.70 mean?
Sun Brothers Development Co (ROCO:3489) has a Days Inventory of 1,190.70 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Sun Brothers Development Co and its competitors. This is near median its historical median of 1,168.56. Over the past decade, Sun Brothers Development Co's Days Inventory has ranged from 465.64 to 2,103.49. According to the industry distribution chart, Sun Brothers Development Co ranks #931 out of 1318 companies in the Real Estate industry, placing it in the top 70.6%.
Is Sun Brothers Development Co's Days Inventory too high?
Sun Brothers Development Co's current Days Inventory of 1,190.70 is near median its 10-year median of 1,168.56. Over the past 10 years, this metric has ranged from a low of 465.64 to a high of 2,103.49. The Real Estate industry median Days Inventory is 691.09. Sun Brothers Development Co's value of 1,190.70 is 72.3% above this industry median. Based on the distribution chart, Sun Brothers Development Co ranks #931 out of 1318 companies in the Real Estate industry, which is below the industry midpoint. Overall, Sun Brothers Development Co has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sun Brothers Development Co's Days Inventory compare to competitors?
According to the Real Estate industry distribution chart, Sun Brothers Development Co ranks #931 out of 1318 companies for Days Inventory. This places Sun Brothers Development Co in the lower half of its industry. The industry median Days Inventory is 691.09. Sun Brothers Development Co's value of 1,190.70 is 72.3% above this benchmark. Historically, Sun Brothers Development Co's own Days Inventory has ranged from 465.64 to 2,103.49 over the past decade. While the company's 10-year median is 1,168.56 vs. the industry median of 691.09, Sun Brothers Development 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 Real Estate company?
The median Days Inventory among Real Estate companies is 691.09, based on 1,318 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. Sun Brothers Development Co's current Days Inventory of 1,190.70 is 72.3% 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 Sun Brothers Development Co and its competitors. For the Real Estate industry, the median Days Inventory is 691.09 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sun Brothers Development Co's current Days Inventory is 1,190.70, which is near median its own 10-year median of 1,168.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sun Brothers Development Co stock overvalued right now?
Based on GuruFocus' analysis, Sun Brothers Development Co (ROCO:3489) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$9.15, compared to a current price of NT$19.70 — trading 115.3% above its estimated fair value. The current Days Inventory is 1,190.70, which is near median its 10-year median of 1,168.56 and 72.3% above the Real Estate industry median of 691.09. Sun Brothers Development Co's overall GF Score™ is 52/100 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 Sun Brothers Development Co (ROCO:3489), the current Days Inventory is 1,190.70 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 Sun Brothers Development Co (ROCO:3489) Overvalued in 2026?

Based on GuruFocus' analysis, Sun Brothers Development Co stock appears to be overvalued. The current stock price of NT$19.70 is trading 115.3% above its estimated GF Value™ of NT$9.15. GuruFocus considers Sun Brothers Development Co to be Significantly Overvalued.

Key valuation signals for ROCO:3489:

  • Days Inventory: 1,190.70 (near median its 10-year median of 1,168.56)
  • GF Value™: NT$9.15 vs. price of NT$19.70 (115.3% above fair value)
  • GF Score™: 52/100 with 9 warning signs
  • Industry Position: 72.3% above the Real Estate median (#931 of 1318)

No single metric tells the full story. See the ROCO:3489 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sun Brothers Development Co Business Description

Address No. 50, Minquan Road, Luzhu District, Taoyuan, TWN, 338018
Sun Brothers Development Co Ltd is engaged in wholesale of building materials, developing, constructing, leasing and selling for residential, commercial or industrial buildings and others. It is also involved in the development and construction of collective housing and public works contract construction. The company's segments are: Real property section, and Construction section. It derives revenue from Construction segment.
52GF Score

Get the complete analysis for ROCO:3489

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

NT$19.70
Price
NT$9.15
GF Value