AutoZoneMEX:AZO 91 Days Inventory is 297.78 as of May. 2026, which is 14% above its 10-year median of 261.20. GuruFocus rates MEX:AZO with a GF Score™ of 91/100 and a GF Value™ of MXN63,831.95 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,290 Vehicles & Parts companies, AutoZone ranks worse than 95.66% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). AutoZone's Average Total Inventories for the
three
months ended in May. 2026 was MXN130,014 Mil. AutoZone's Cost of Goods Sold for the
three
months ended in May. 2026 was MXN40,189 Mil.
Hence, AutoZone's Days Inventory for the
three
months ended in May. 2026 was 295.20.
The historical rank and industry rank for AutoZone's Days Inventory or its related term are showing as below:
MEX:AZO'
s Days Inventory Range Over the Past 10 Years
Min: 240.62 Med: 261.2 Max: 274.24
Current: 272.81
During the past 13 years, AutoZone's highest Days Inventory was 274.24. The lowest was 240.62. And the median was 261.20.
MEX:AZO's Days Inventory is ranked worse than 95.66% of 1290
companies
in the Vehicles & Parts industry
Industry Median: 80.33
vs MEX:AZO: 272.81
AutoZone's Days Inventory
declined
from May. 2025 (297.91) to May. 2026 (297.78).
Inventory Turnover measures how fast the company turns over its inventory within a year.
AutoZone's Inventory Turnover for the
three
months ended in May. 2026 was 0.31.
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's Inventory-to-Revenue for the
three
months ended in May. 2026 was 1.55.
AutoZone (MEX:AZO) 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.
AutoZone's Inventory Turnover for the
three
months ended in May. 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.
AutoZone's Inventory to Revenue for the
three
months ended in May. 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.
AutoZone Days Inventory Related Terms
AutoZone Days Inventory Historical Data
* Premium members only.
The historical data trend for AutoZone'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.
MEX:AZO vs ORLY, GPC, BWA: Days Inventory Comparison
For the Auto Parts subindustry, AutoZone'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.
AutoZone Days Inventory vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, AutoZone's Days Inventory distribution charts can be found below:
* The bar in red indicates where AutoZone's Days Inventory falls into.
* 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.
AutoZone (MEX:AZO) has a Days Inventory of 297.78 as of May. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on AutoZone and its competitors. This is 14% above median its historical median of 261.20. Over the past decade, AutoZone's Days Inventory has ranged from 240.62 to 274.24. According to the industry distribution chart, AutoZone ranks #1234 out of 1290 companies in the Vehicles & Parts industry, placing it in the top 95.7%.
Is AutoZone's Days Inventory too high?
AutoZone's current Days Inventory of 297.78 is 14% above median its 10-year median of 261.20. Over the past 10 years, this metric has ranged from a low of 240.62 to a high of 274.24. The Vehicles & Parts industry median Days Inventory is 80.33. AutoZone's value of 297.78 is 270.7% above this industry median. Based on the distribution chart, AutoZone ranks #1234 out of 1290 companies in the Vehicles & Parts industry, which is in the bottom quartile relative to peers. Overall, AutoZone has a GF Score™ of 91/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does AutoZone's Days Inventory compare to ORLY and GPC?
According to the Vehicles & Parts industry distribution chart, AutoZone ranks #1234 out of 1290 companies for Days Inventory. This places AutoZone in the lower half of its industry. The industry median Days Inventory is 80.33. AutoZone's value of 297.78 is 270.7% above this benchmark. Historically, AutoZone's own Days Inventory has ranged from 240.62 to 274.24 over the past decade. While the company's 10-year median is 261.20 vs. the industry median of 80.33, AutoZone 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 Vehicles & Parts company?
The median Days Inventory among Vehicles & Parts companies is 80.33, based on 1,290 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. AutoZone's current Days Inventory of 297.78 is 270.7% 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 AutoZone and its competitors. For the Vehicles & Parts industry, the median Days Inventory is 80.33 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. AutoZone's current Days Inventory is 297.78, which is 14% above median its own 10-year median of 261.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AutoZone stock overvalued right now?
Based on GuruFocus' analysis, AutoZone (MEX:AZO) is currently considered Modestly Undervalued. The stock's GF Value™ is MXN63,831.95, compared to a current price of MXN51,780.00 — trading 18.9% below its estimated fair value. The current Days Inventory is 297.78, which is 14% above median its 10-year median of 261.20 and 270.7% above the Vehicles & Parts industry median of 80.33. AutoZone's overall GF Score™ is 91/100 with 3 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 AutoZone (MEX:AZO), the current Days Inventory is 297.78 as of May. 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 AutoZone (MEX:AZO) Overvalued in 2026?
Based on GuruFocus' analysis, AutoZone stock appears to be undervalued.
The current stock price of MXN51,780.00 is trading 18.9% below its estimated GF Value™ of MXN63,831.95.
GuruFocus considers AutoZone to be Modestly Undervalued.
Key valuation signals for MEX:AZO:
Days Inventory: 297.78 (14% above median its 10-year median of 261.20)
GF Value™: MXN63,831.95 vs. price of MXN51,780.00 (18.9% below fair value)
Industry Position: 270.7% above the Vehicles & Parts median (#1234 of 1290)
No single metric tells the full story. See the MEX:AZO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Founded in 1979, AutoZone is the largest US-based retailer of aftermarket automotive parts and accessories, operating over 7,600 stores and generating roughly $18.9 billion in fiscal 2025 sales. Beyond its primary home market (88% of total revenue), the company also maintains a growing presence in Mexico and Brazil. AutoZone caters to two core customer segments: do-it-yourself, which account for about 69% of its domestic sales, and commercial do-it-for-me customers, which represent the remaining 31%.
91GF Score
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