This AZO PE ratio history page last updated 3/11/2026
AZO Historical PE Ratio Notes
— AutoZone, Inc. (AZO) is the leading retailer & distributor of automotive replacement parts & accessories in the United States, operating thousands of stores across North America. The company serves both do-it-yourself (DIY) customers & professional repair shops, offering a wide range of products from batteries & brakes to engine components & maintenance items. As you review AZO’s historical price, earnings, and PE ratio data, keep in mind that AutoZone's consistent focus on customer service, operational efficiency, and inventory management has allowed it to produce steady earnings growth over the years, even during economic slowdowns. This resilience often translates into a historically higher price-to-earnings (PE) ratio compared to more cyclical or discretionary retailers, as the market tends to reward businesses with stable, repeat demand for essential products. Fluctuations in AZO's PE ratio will reflect not only changes in its profit growth but also investors' expectations of future earnings stability and the broader trends in consumer vehicle maintenance patterns. When you analyze historical PE trends, consider how macroeconomic factors, competitive dynamics, and AutoZone’s proven ability to grow earnings amid various headwinds have shaped the valuation investors are willing to assign over time.
How should the AZO historical PE ratio be determined?
Realizing that PE stands for Price to Earnings ratio, we need two values to compute it: stock price and earnings per share. The stock price at any given date is a known historical value, but what about the earnings number to use?
✔️Accepted answer:
There are a number of different approaches when it comes to calculating a historical PE ratio for a company like AutoZone. We like to take our measurements on each of the past quarterly earnings reports. That only leaves the question of whether the earnings number at that quarterly report should be used on an annualized basis, or some other method. We approach this question using three different methods, on this AZO Historical PE Ratio page.
What is the average historical PE for AZO based on annualized quarterly earnings?
As we look back through earnings history, what is the resulting PE calculation if at each measurement period we use that quarter's earnings result annualized?
✔️Accepted answer:
The AZO historical PE ratio using the annualized quarterly earnings method works out to 18.4.
What is the average historical PE for AZO based on trailing twelve month earnings?
As we look back through earnings history, what is the resulting PE calculation if at each measurement period we use the trailing twelve months combined earnings result in the calculation?
✔️Accepted answer:
The AZO historical PE ratio using the TTM earnings method works out to 18.6.
What is the average historical PE for AZO based on median TTM earnings?
As we look back through earnings history, what is the resulting PE calculation if at each measurement period we use the median earnings over the trailing twelve months and annualize that median result in the calculation?
✔️Accepted answer:
The AZO historical PE ratio using the annualized median TTM earnings method works out to 132.8.
On this page we presented the
AZO Historical PE Ratio information for AutoZone' stock.
The average AZO historical PE based on using the annualized quarterly earnings result at each measurement period (for the "E" in the PE calculation; and the closing price on earnings date as the "P") is 18.4. Meanwhile, using the trailing twelve month (TTM) quarterly earnings result as our method of calculation the "E" value at each measurement period, the average AZO historical PE based on this TTM earnings result method is 18.6.
Let's now compare this AZO historical PE result, against the recent PE: when this page was posted on 3/10/2026, the most recent closing price for AZO had been 3726.02, and the most recent quarterly earnings result, annualized, was 110.52. Meanwhile, the most recent TTM earnings summed to 142.74. From these numbers, we calculate the recent AZO PE on 3/10/2026 based on annualized quarterly EPS was 33.7. Based on AZO's history, that recent PE is elevated relative to the historical average, with the recent PE 83.2% higher than the historical average PE across our data set for AutoZone. Looking at the recent AZO PE on 3/10/2026 based on TTM EPS, we calculate the ratio at 26.1. Based on AZO's history, that recent PE is elevated relative to the historical average, with the recent PE 40.3% higher than the historical average PE across our AutoZone data set with TTM EPS used in the calculation at each period.
Another interesting AZO historical PE Ratio calculation we look at is to take the
median earnings per share of the last four quarters for AZO, and then annualize the resulting value... with that annualized number then being used in the PE calculation. To walk through this math for AZO, we start with the past four EPS numbers and we first sort them from lowest to highest: 27.63, 31.04, 35.36, and 48.71. We then toss out the highest and lowest result, and then take the average of those two middle numbers — 31.04 and 35.36 — which gives us the median of 33.20. Basically the way to think about this 33.20 number is this: for the trailing four earnings reports, 33.20 marks the "middle ground" number where AZO has reported a value
higher than 33.20 half the time, and has reported a value
lower than 33.20 half the time. Annualizing that median value then gets us to 132.8/share, which we use as the denominator in our next PE calculation. With 3726.02 as the numerator (as of 3/10/2026), the calculation is then 3726.02 / 132.8 =
28.1 as the AZO PE ratio as of 3/10/2026, based on that annualized median value we calculated.
For self directed investors doing their due diligence on AZO or any other given stock, valuation analysis for AZO
can greatly benefit from studying the past earnings and resulting PE calculations. This exercise can help inform an analysis
as to whether the past earnings trajectory and current versus historical PE ratios justify the current stock value.
That's why we bring you
HistoricalPERatio.com to make it easy for investors to investigate
AutoZone PE history or the past PE information for any stock in our coverage universe.
And in your continued research we hope you will be sure to check out the further links included for earnings
surprises history (beat/miss data) as well as next earnings dates for AZO. Thanks for visiting, and the next
time you need to research
AZO Historical PE Ratio or the ratio for another stock, we hope you'll think of our site, as your
go-to historical PE ratio research resource of choice.