Yamau Holdings Co (TSE:5284) Days Inventory: 66.05 (As of Mar. 2026) — Near 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.

TSE:5284 Yamau Holdings Co Ltd TSE:5284
69 GF Score
Price 円2,239.00
GF Value 円1,959.87
Valuation Modestly Overvalued
! 4 Warning Signs
View Full Analysis

What is Yamau Holdings Co Days Inventory?

Yamau Holdings Co TSE:5284 +0.49% 69 Days Inventory is 66.05 as of Mar. 2026, which is 8% above its 10-year median of 60.94. GuruFocus rates TSE:5284 with a GF Score™ of 69/100 and a GF Value™ of 円1,959.87 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 392 Building Materials companies, Yamau Holdings Co ranks better than 58.67% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Yamau Holdings Co's Average Total Inventories for the six months ended in Mar. 2026 was 円2,639 Mil. Yamau Holdings Co's Cost of Goods Sold for the six months ended in Mar. 2026 was 円7,293 Mil. Hence, Yamau Holdings Co's Days Inventory for the six months ended in Mar. 2026 was 66.05.

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

TSE:5284' s Days Inventory Range Over the Past 10 Years
Min: 48.27   Med: 60.94   Max: 75.45
Current: 75.08

During the past 13 years, Yamau Holdings Co's highest Days Inventory was 75.45. The lowest was 48.27. And the median was 60.94.

TSE:5284's Days Inventory is ranked better than
58.67% of 392 companies
in the Building Materials industry
Industry Median: 90.21 vs TSE:5284: 75.08

Yamau Holdings Co's Days Inventory increased from Mar. 2025 (62.12) to Mar. 2026 (66.05). It might indicate that Yamau Holdings Co's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. Yamau Holdings Co's Inventory Turnover for the six months ended in Mar. 2026 was 2.76.

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. Yamau Holdings Co's Inventory-to-Revenue for the six months ended in Mar. 2026 was 0.21.


Yamau Holdings Co  (TSE:5284) 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.

Yamau Holdings Co's Inventory Turnover for the six months ended in Mar. 2026 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.

Yamau Holdings Co's Inventory to Revenue for the six months ended in Mar. 2026 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.


Yamau Holdings Co Days Inventory Related Terms


Yamau Holdings Co Days Inventory Historical Data

* Premium members only.

The historical data trend for Yamau Holdings 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.

Yamau Holdings Co Days Inventory Chart

Yamau Holdings Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 73.12 73.25 75.45 67.06 70.86

Yamau Holdings Co Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
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 72.67 97.92 62.12 92.52 66.05

TSE:5284 vs CRH, VMC, MLM: Days Inventory Comparison

For the Building Materials subindustry, Yamau Holdings 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.


Yamau Holdings Co Days Inventory vs Building Materials Industry

For the Building Materials industry and Basic Materials sector, Yamau Holdings Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where Yamau Holdings Co's Days Inventory falls into.


TSE:5284
69GF Score
Yamau Holdings Co Ltd TSE:5284
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Yamau Holdings Co Days Inventory Calculation

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

Yamau Holdings Co's Days Inventory for the fiscal year that ended in Mar. 2026 is calculated as

Days Inventory (A: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Mar. 2025 ) + Total Inventories (A: Mar. 2026 )) / count ) / Cost of Goods Sold (A: Mar. 2026 )*Days in Period
=( (2494.008 + 2396.641) / 2 ) / 12595.223*365
=2445.3245 / 12595.223*365
=70.86

Yamau Holdings Co's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Sep. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (2882.021 + 2396.641) / 2 ) / 7292.967*365 / 2
=2639.331 / 7292.967*365 / 2
=66.05

* 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 66.05 mean?
Yamau Holdings Co (TSE:5284) has a Days Inventory of 66.05 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Yamau Holdings Co and its competitors. This is near median its historical median of 60.94. Over the past decade, Yamau Holdings Co's Days Inventory has ranged from 48.27 to 75.45. According to the industry distribution chart, Yamau Holdings Co ranks #162 out of 392 companies in the Building Materials industry, placing it in the top 41.3%.
Is Yamau Holdings Co's Days Inventory too high?
Yamau Holdings Co's current Days Inventory of 66.05 is near median its 10-year median of 60.94. Over the past 10 years, this metric has ranged from a low of 48.27 to a high of 75.45. The Building Materials industry median Days Inventory is 90.21. Yamau Holdings Co's value of 66.05 is 26.8% below this industry median. Based on the distribution chart, Yamau Holdings Co ranks #162 out of 392 companies in the Building Materials industry, which is above the industry midpoint. Overall, Yamau Holdings Co has a GF Score™ of 69/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yamau Holdings Co's Days Inventory compare to CRH and VMC?
According to the Building Materials industry distribution chart, Yamau Holdings Co ranks #162 out of 392 companies for Days Inventory. This puts Yamau Holdings Co in the upper half of its industry. The industry median Days Inventory is 90.21. Yamau Holdings Co's value of 66.05 is 26.8% below this benchmark. Historically, Yamau Holdings Co's own Days Inventory has ranged from 48.27 to 75.45 over the past decade. While the company's 10-year median is 60.94 vs. the industry median of 90.21, Yamau Holdings 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 Building Materials company?
The median Days Inventory among Building Materials companies is 90.21, based on 392 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. Yamau Holdings Co's current Days Inventory of 66.05 is 26.8% 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 Yamau Holdings Co and its competitors. For the Building Materials industry, the median Days Inventory is 90.21 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Yamau Holdings Co's current Days Inventory is 66.05, which is near median its own 10-year median of 60.94. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yamau Holdings Co stock overvalued right now?
Based on GuruFocus' analysis, Yamau Holdings Co (TSE:5284) is currently considered Modestly Overvalued. The stock's GF Value™ is 円1,959.87, compared to a current price of 円2,239.00 — trading 14.2% above its estimated fair value. The current Days Inventory is 66.05, which is near median its 10-year median of 60.94 and 26.8% below the Building Materials industry median of 90.21. Yamau Holdings Co's overall GF Score™ is 69/100 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 Yamau Holdings Co (TSE:5284), the current Days Inventory is 66.05 as of Mar. 2026. 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 Yamau Holdings Co (TSE:5284) Overvalued in 2026?

Based on GuruFocus' analysis, Yamau Holdings Co stock appears to be overvalued. The current stock price of 円2,239.00 is trading 14.2% above its estimated GF Value™ of 円1,959.87. GuruFocus considers Yamau Holdings Co to be Modestly Overvalued.

Key valuation signals for TSE:5284:

  • Days Inventory: 66.05 (near median its 10-year median of 60.94)
  • GF Value™: 円1,959.87 vs. price of 円2,239.00 (14.2% above fair value)
  • GF Score™: 69/100 with 4 warning signs
  • Industry Position: 26.8% below the Building Materials median (#162 of 392)

No single metric tells the full story. See the TSE:5284 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Yamau Holdings Co Business Description

Address 5-15-7 Higashi Irube, Sawara-ku, Fukuoka Prefecture, Fukuoka, JPN, 811-1102
Yamau Holdings Co Ltd Is a Japan based company engaged in engineering, manufacturing and selling concrete products. It offers civil products, including river rocks, type retaining walls, sewer drains, functional concrete, and dam related products. The concrete product portfolio of the company comprises Aquapond S-type, Green rock, Kagomasu, Tameloop, Loop Arch, FA Box, Precast box culvert, fire protection water tank, power rock, super cliff, three side channel and YT channel, among others.
69GF Score

Get the complete analysis for TSE:5284

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

円2,239.00
Price
円1,959.87
GF Value