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

As of today, AutoZone Inc's current share price is $746.98. AutoZone Inc's E10 for the quarter that ended in May. 2016 was $22.47. AutoZone Inc's Shiller P/E Ratio for today is 33.24.

AZO' s Shiller P/E Ratio Range Over the Past 10 Years
Min: 15.08   Max: 38.95
Current: 33.25


During the past 13 years, AutoZone Inc's highest Shiller P/E Ratio was 38.95. The lowest was 15.08. And the median was 29.33.

AZO's Shiller P/E Ratio is ranked lower than
71% of the 241 Companies
in the Global Specialty Retail industry.

( Industry Median: 20.66 vs. AZO: 33.25 )

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. 2016 was $10.770. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $22.47 for the trailing ten years ended in May. 2016.


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 Aug15 is calculated as:

For example, AutoZone Inc's adjusted earnings per share data for the three months ended in May. 2016 was:

Adj_EPS=Earnigns per Share/CPI of May. 2016 (Change)*Current CPI (May. 2016)

Current CPI (May. 2016) = 240.236.

AutoZone Inc Quarterly Data

per share eps 8.46011.2307.2706.5109.57012.7008.2907.43010.77014.300
CPI 237.900237.852236.151234.722237.805238.316237.336237.111240.236240.853
Adj_EPS 8.54311.3437.3966.6639.66812.8028.3917.52810.77014.263
per share eps 4.6804.1506.2808.4005.4104.7807.27010.3506.2905.630
CPI 226.230227.663229.815230.379230.221232.166232.945233.877233.069234.781
Adj_EPS 4.9704.3796.5658.7595.6454.9467.49810.6316.4835.761
per share eps 3.1304.3702.8202.4604.1205.6003.7703.3405.2907.120
CPI 213.856215.834216.330216.741218.178218.312218.803221.309225.964226.545
Adj_EPS 3.5164.8643.1322.7274.5376.1624.1393.6265.6247.550
per share eps 1.7301.4502.1703.2002.0201.6702.4903.8502.2302.030
CPI 201.500203.499207.949207.917210.177211.693216.632219.086212.425212.193
Adj_EPS 2.0631.7122.5073.6972.3091.8952.7614.2222.5222.298

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 24.1622.4421.1025.1129.3729.1628.4630.9735.550.00

AutoZone Inc Quarterly Data

ShillerPE 32.0930.9732.5135.5035.1035.5538.0636.5533.930.00
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