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AutoZone Inc (NYSE:AZO)
Shiller P/E Ratio
38.26 (As of Today)

As of today, AutoZone Inc's current share price is $736.92. AutoZone Inc's E10 for the quarter that ended in May. 2015 was $19.26. AutoZone Inc's Shiller P/E Ratio for today is 38.26.

AZO' s 10-Year Shiller P/E Ratio Range
Min: 15.08   Max: 39.02
Current: 38.24


During the past 13 years, AutoZone Inc's highest Shiller P/E Ratio was 39.02. The lowest was 15.08. And the median was 28.22.

AZO's Shiller P/E Ratiois ranked lower than
76% of the 235 Companies
in the Global Specialty Retail industry.

( Industry Median: 22.14 vs. AZO: 38.24 )

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

AutoZone Inc's adjusted earnings per share data for the three months ended in May. 2015 was $9.570. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $19.26 for the trailing ten years ended in May. 2015.


For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

AutoZone Inc's Shiller P/E Ratio for today is calculated as

Shiller P/E Ratio=Share Price/E10

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

AutoZone Inc's E10 for the fiscal year that ended in Aug14 is calculated as:

For example, AutoZone Inc's adjusted earnings per share data for the three months ended in May. 2015 was:

Adj_EPS=Earnigns per Share/CPI of May. 2015 (Change)*Current CPI (May. 2015)

Current CPI (May. 2015) = 237.805.

AutoZone Inc Quarterly Data

per share eps 7.27010.5166.2905.6308.46011.3667.2706.5109.57012.750
CPI 232.945233.877233.069234.781237.900237.852236.151234.722237.805238.316
Adj_EPS 7.42210.6936.4185.7038.45711.3647.3216.5969.57012.723
per share eps 3.7703.3405.2907.2744.6804.1506.2808.5635.4104.780
CPI 218.803221.309225.964226.545226.230227.663229.815230.379230.221232.166
Adj_EPS 4.0973.5895.5677.6364.9194.3356.4988.8395.5884.896
per share eps 2.4903.8982.2302.0303.1304.5042.8202.4604.1205.727
CPI 216.632219.086212.425212.193213.856215.834216.330216.741218.178218.312
Adj_EPS 2.7334.2312.4962.2753.4814.9623.1002.6994.4916.238
per share eps 1.4801.2501.8902.9551.7301.4502.1703.2692.0201.670
CPI 197.600198.700202.500203.900201.500203.499207.949207.917210.177211.693
Adj_EPS 1.7811.4962.2203.4462.0421.6942.4823.7392.2861.876

Add all the adjusted EPS together and divide 10 will get our E10.


Compared with the regular P/E ratio, which works poorly for cyclical businesses, the Shiller P/E smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller P/E should give similar results to regular P/E.

Compared with the P/S ratio, the Shiller P/E makes the comparison between different industries more meaningful.

Be Aware

The Shiller P/E assumes that over the long term, businesses and profitability revert to their means. If a company’s business model does not work in the future compared with the past, the Shiller P/E and P/S ratio will give false valuations.

Related Terms

P/E Ratio, P/B Ratio, P/S Ratio, Price-to-Free-Cash-Flow ratio, E10

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

ShillerPE 20.5724.0422.5020.9425.0829.3028.8228.3630.840.00

AutoZone Inc Quarterly Data

ShillerPE 29.1528.3630.2333.9732.0030.8432.3835.0334.970.00
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