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CarMax Inc (NYSE:KMX)
Shiller PE Ratio
31.43 (As of Today)

As of today, CarMax Inc's current share price is $60.04. CarMax Inc's E10 for the quarter that ended in Nov. 2016 was $1.91. CarMax Inc's Shiller P/E Ratio for today is 31.43.

KMX' s Shiller PE Ratio Range Over the Past 10 Years
Min: 13.04   Max: 68.5
Current: 31.37


During the past 13 years, CarMax Inc's highest Shiller P/E Ratio was 68.50. The lowest was 13.04. And the median was 35.06.

KMX's Shiller PE Ratio is ranked lower than
54% of the 207 Companies
in the Global Auto & Truck Dealerships industry.

( Industry Median: 29.26 vs. KMX: 31.37 )

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.

CarMax Inc's adjusted earnings per share data for the three months ended in Nov. 2016 was $0.720. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $1.91 for the trailing ten years ended in Nov. 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.

CarMax 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 local exchange's currency.

CarMax Inc's E10 for the fiscal year that ended in Feb16 is calculated as:

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

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

Current CPI (Nov. 2016) = 241.353.

CarMax Inc Quarterly Data

per share eps 0.7000.6000.6700.8600.8200.6300.7100.9000.8400.720
CPI 237.852236.151234.722237.805238.316237.336237.111240.229240.849241.353
Adj_EPS 0.7100.6130.6890.8730.8300.6410.7230.9040.8420.720
per share eps 0.4100.5200.4800.4100.4600.6400.6200.4700.4300.760
CPI 227.663229.815230.379230.221232.166232.945233.877233.069234.781237.900
Adj_EPS 0.4350.5460.5030.4300.4780.6630.6400.4870.4420.771
per share eps 0.4600.3300.3400.4400.4800.3600.3700.5400.4800.360
CPI 215.834216.330216.741218.178218.312218.803221.309225.964226.545226.230
Adj_EPS 0.5140.3680.3790.4870.5310.3970.4040.5770.5110.384
per share eps 0.1900.3000.2900.1400.1000.1300.060-0.1000.1700.130
CPI 203.499207.949207.917210.177211.693216.632219.086212.425212.193213.856
Adj_EPS 0.2250.3480.3370.1610.1140.1450.066-0.1140.1930.147

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 local exchange's currency.

CarMax Inc Annual Data

ShillerPE 0.0038.3118.1530.6043.5631.9434.6338.2245.3626.91

CarMax Inc Quarterly Data

ShillerPE 37.7739.6645.3645.5837.3134.3426.9129.8931.5730.19
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