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AutoZone Inc (NYSE:AZO)
Days Inventory
251.76 (As of May. 2014)

AutoZone Inc's average inventory for the three months ended in May. 2014 was $3,111 Mil. AutoZone Inc's cost of goods sold for the three months ended in May. 2014 was $1,125 Mil. Hence, AutoZone Inc's days inventory for the three months ended in May. 2014 was 251.76.

AutoZone Inc's days inventory increased from May. 2013 (237.75) to May. 2014 (251.76). It might indicate that AutoZone Inc's sales slowed down.

Inventory can be measured by Days Sales of Inventory (DSI). AutoZone Inc's days sales of inventory (DSI) for the three months ended in May. 2014 was 120.92.

Inventory turnover measures how fast the company turns over its inventory within a year. AutoZone Inc's inventory turnover for the three months ended in May. 2014 was 0.36.

Inventory to revenue ratio 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. AutoZone Inc's inventory to revenue ratio for the three months ended in May. 2014 was 1.33.


Definition

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

AutoZone Inc's Days Inventory for the fiscal year that ended in Aug. 2013 is calculated as

Days Inventory
=( (Inventory (A: Aug. 2012 )+Inventory (A: Aug. 2013 ))/ 2 )/Cost of Goods Sold*Days in Period
=( (2627.983+2861.014)/ 2 )/4406.595*365
=2744.4985/4406.595*365
=227.33

AutoZone Inc's Days Inventory for the quarter that ended in May. 2014 is calculated as:

Days Inventory
=( (Inventory (Q: Feb. 2014 )+Inventory (Q: May. 2014 ))/ 2 )/Cost of Goods Sold*Days in Period
=( (3089.245+3133.35)/ 2 )/1124.587*91
=3111.2975/1124.587*91
=251.76

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.


Explanation

An increase of Days Inventory may indicate the company's sales slowed.

1. Inventory can be measured by Days Sales of Inventory (DSI).

AutoZone Inc's Days Sales of Inventory for the three months ended in May. 2014 is calculated as

Days Sales of Inventory (DSI)=Average Inventory/Revenue*Days in Period
=3111.2975/2341.545*91
=120.92

2. Inventory Turnover measures how fast the company turns over its inventory within a year.

AutoZone Inc's Inventory Turnover for the three months ended in May. 2014 is calculated as

3. 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.

AutoZone Inc's Inventory to Revenue for the three months ended in May. 2014 is calculated as

Inventory to Revenue=Average Inventory / Revenue
=3111.2975 / 2341.545
=1.33

* All numbers are in millions except for per share data and ratio. All numbers are in their own 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.


Related Terms

Cost of Goods Sold, Inventory, Revenue, Inventory Turnover, Inventory to Revenue


Historical Data

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

AutoZone Inc Annual Data

Aug05Aug06Aug07Aug08Aug09Aug10Aug11Aug12Aug13Aug14
DaysInventory 201.70212.86226.49233.13233.88225.55220.22222.85227.33241.21

AutoZone Inc Quarterly Data

May12Aug12Nov12Feb13May13Aug13Nov13Feb14May14Aug14
DaysInventory 231.83179.71252.84278.16237.75172.65262.22288.08251.76196.25
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