Blue Bird (STU:4RB) Days Inventory: 45.93 (As of Mar. 2026) — 26% Above Median


STU:4RB Blue Bird Corp STU:4RB
80 GF Score
Price €68.14
GF Value €44.39
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Blue Bird Days Inventory?

Blue Bird STU:4RB +3.49% 80 Days Inventory is 45.93 as of Mar. 2026, which is 26% above its 10-year median of 36.51. GuruFocus rates STU:4RB with a GF Score™ of 80/100 and a GF Value™ of €44.39 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 207 Farm & Heavy Construction Machinery companies, Blue Bird ranks better than 92.75% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Blue Bird's Average Total Inventories for the three months ended in Mar. 2026 was €123 Mil. Blue Bird's Cost of Goods Sold for the three months ended in Mar. 2026 was €244 Mil. Hence, Blue Bird's Days Inventory for the three months ended in Mar. 2026 was 45.93.

The historical rank and industry rank for Blue Bird's Days Inventory or its related term are showing as below:

STU:4RB' s Days Inventory Range Over the Past 10 Years
Min: 23.42   Med: 36.51   Max: 64.05
Current: 45.83

During the past 13 years, Blue Bird's highest Days Inventory was 64.05. The lowest was 23.42. And the median was 36.51.

STU:4RB's Days Inventory is ranked better than
92.75% of 207 companies
in the Farm & Heavy Construction Machinery industry
Industry Median: 127.03 vs STU:4RB: 45.83

Blue Bird's Days Inventory declined from Mar. 2025 (52.63) to Mar. 2026 (45.93).

Inventory Turnover measures how fast the company turns over its inventory within a year. Blue Bird's Inventory Turnover for the three months ended in Mar. 2026 was 1.99.

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. Blue Bird's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.40.


Blue Bird  (STU:4RB) 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.

Blue Bird's Inventory Turnover for the three 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.

Blue Bird's Inventory to Revenue for the three 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.


Blue Bird Days Inventory Related Terms


Blue Bird Days Inventory Historical Data

* Premium members only.

The historical data trend for Blue Bird'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.

Blue Bird Days Inventory Chart

Blue Bird Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 54.19 59.32 53.14 44.91 42.60

Blue Bird Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 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 52.63 47.64 41.42 48.80 45.93

STU:4RB vs ALG, ASTE, LNN: Days Inventory Comparison

For the Farm & Heavy Construction Machinery subindustry, Blue Bird'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.


Blue Bird Days Inventory vs Farm & Heavy Construction Machinery Industry

For the Farm & Heavy Construction Machinery industry and Industrials sector, Blue Bird's Days Inventory distribution charts can be found below:

* The bar in red indicates where Blue Bird's Days Inventory falls into.


STU:4RB
80GF Score
Blue Bird Corp STU:4RB
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Blue Bird Days Inventory Calculation

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

Blue Bird's Days Inventory for the fiscal year that ended in Sep. 2025 is calculated as

Days Inventory (A: Sep. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Sep. 2024 ) + Total Inventories (A: Sep. 2025 )) / count ) / Cost of Goods Sold (A: Sep. 2025 )*Days in Period
=( (115.146 + 118.828) / 2 ) / 1002.451*365
=116.987 / 1002.451*365
=42.60

Blue Bird'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: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (120.35 + 125.222) / 2 ) / 243.919*365 / 4
=122.786 / 243.919*365 / 4
=45.93

* 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 45.93 mean?
Blue Bird (STU:4RB) has a Days Inventory of 45.93 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Blue Bird and its competitors. This is 26% above median its historical median of 36.51. Over the past decade, Blue Bird's Days Inventory has ranged from 23.42 to 64.05. According to the industry distribution chart, Blue Bird ranks #15 out of 207 companies in the Farm & Heavy Construction Machinery industry, placing it in the top 7.2%.
Is Blue Bird's Days Inventory too high?
Blue Bird's current Days Inventory of 45.93 is 26% above median its 10-year median of 36.51. Over the past 10 years, this metric has ranged from a low of 23.42 to a high of 64.05. The Farm & Heavy Construction Machinery industry median Days Inventory is 127.03. Blue Bird's value of 45.93 is 63.8% below this industry median. Based on the distribution chart, Blue Bird ranks #15 out of 207 companies in the Farm & Heavy Construction Machinery industry, which is in the top quartile — a strong position relative to peers. Overall, Blue Bird has a GF Score™ of 80/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Blue Bird's Days Inventory compare to ALG and ASTE?
According to the Farm & Heavy Construction Machinery industry distribution chart, Blue Bird ranks #15 out of 207 companies for Days Inventory. This places Blue Bird in the top 7% of its industry — outperforming the majority of peers. The industry median Days Inventory is 127.03. Blue Bird's value of 45.93 is 63.8% below this benchmark. Historically, Blue Bird's own Days Inventory has ranged from 23.42 to 64.05 over the past decade. While the company's 10-year median is 36.51 vs. the industry median of 127.03, Blue Bird 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 Farm & Heavy Construction Machinery company?
The median Days Inventory among Farm & Heavy Construction Machinery companies is 127.03, based on 207 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. Blue Bird's current Days Inventory of 45.93 is 63.8% 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 Blue Bird and its competitors. For the Farm & Heavy Construction Machinery industry, the median Days Inventory is 127.03 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Blue Bird's current Days Inventory is 45.93, which is 26% above median its own 10-year median of 36.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Blue Bird stock overvalued right now?
Based on GuruFocus' analysis, Blue Bird (STU:4RB) is currently considered Significantly Overvalued. The stock's GF Value™ is €44.39, compared to a current price of €68.14 — trading 53.5% above its estimated fair value. The current Days Inventory is 45.93, which is 26% above median its 10-year median of 36.51 and 63.8% below the Farm & Heavy Construction Machinery industry median of 127.03. Blue Bird's overall GF Score™ is 80/100 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 Blue Bird (STU:4RB), the current Days Inventory is 45.93 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 Blue Bird (STU:4RB) Overvalued in 2026?

Based on GuruFocus' analysis, Blue Bird stock appears to be overvalued. The current stock price of €68.14 is trading 53.5% above its estimated GF Value™ of €44.39. GuruFocus considers Blue Bird to be Significantly Overvalued.

Key valuation signals for STU:4RB:

  • Days Inventory: 45.93 (26% above median its 10-year median of 36.51)
  • GF Value™: €44.39 vs. price of €68.14 (53.5% above fair value)
  • GF Score™: 80/100 with 4 warning signs
  • Industry Position: 63.8% below the Farm & Heavy Construction Machinery median (#15 of 207)

No single metric tells the full story. See the STU:4RB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Blue Bird Business Description

Other Exchanges BLBD:USA4RB:Germany
Address 3920 Arkwright Road, 2nd Floor, Macon, GA, USA, 31210
Blue Bird Corp is an American bus manufacturing company. It is an independent designer and manufacturer of school buses. The company operates in two segments; the Bus segment which involves the design, engineering, manufacture, and sales of school buses and extended warranties; and the Parts segment which includes the sales of replacement bus parts. Geographically, the company generates a majority of its revenue from its customers in the United States and the rest from Canada and Rest of the world.
80GF Score

Get the complete analysis for STU:4RB

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

€68.14
Price
€44.39
GF Value