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MWI Veterinary Supply Inc (NAS:MWIV)
E10
\$4.01 (As of Sep. 2014)

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.

MWI Veterinary Supply Inc's adjusted earnings per share data for the three months ended in Sep. 2014 was \$1.340. Since most companies do not have as long as 10 years history, here we use 6 years to calculate. Add all the adjusted EPS for the past 6 years together and divide 6 will get our e10, which is \$4.01 for the trailing six years ended in Sep. 2014.

As of today, MWI Veterinary Supply Inc's current stock price is \$190.00. MWI Veterinary Supply Inc's E10 for the trailing six years ended in Sep. 2014 was \$4.01. MWI Veterinary Supply Inc's Shiller P/E Ratio of today is 47.38.

During the past 13 years, the highest Shiller P/E Ratio of MWI Veterinary Supply Inc was 55.37. The lowest was 27.99. And the median was 39.20.

Definition

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use todays price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Lets use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned \$1 a share in 2001, then the 2001s equivalent earnings in 2010 is \$1.4 a share. If Wal-Mart earns \$1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is \$1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

For example, MWI Veterinary Supply Inc's adjusted earnings per share data for the three months ended in Sep. 2014 was:

 Adj_EPS = Earnigns per Share / CPI of Sep. 2014 * CPI of Current = 1.364 / 238.031 * 233.808 = 1.340

Since most companies do not have as long as 10 years history, GuruFocus uses 6 years to do the calculation.

Current CPI = 233.808.

MWI Veterinary Supply Inc Quarterly Data

 201206 201209 201212 201303 201306 201309 201312 201403 201406 201409 per share eps 1.15 0.994 1.32 1.19 1.320 1.118 1.450 1.320 1.520 1.364 CPI 229.478 231.407 229.601 232.773 233.504 234.149 233.049 236.293 238.343 238.031 Adj_EPS 1.172 1.004 1.344 1.195 1.322 1.116 1.455 1.306 1.491 1.340 200912 201003 201006 201009 201012 201103 201106 201109 201112 201203 per share eps 0.63 0.62 0.74 0.707 0.870 0.830 0.910 0.800 1.050 1.040 CPI 215.949 217.631 217.965 218.439 219.179 223.467 225.722 226.889 225.672 229.392 Adj_EPS 0.682 0.666 0.794 0.757 0.928 0.868 0.943 0.824 1.088 1.060 200812 200903 200906 200909 per share eps 0.48 0.47 0.54 0.531 CPI 210.228 212.709 215.693 215.969 Adj_EPS 0.534 0.517 0.585 0.575

Add all the adjusted EPS together and divide 6 will get our e10.

Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller P/E Ratio can seem to be too high even the actual P/E is low.

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.

MWI Veterinary Supply Inc's Shiller P/E Ratio of today is calculated as

 Shiller P/E Ratio = Share Price / E10 = 190.00 / 4.01 = 47.38

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

During the past 13 years, the highest Shiller P/E Ratio of MWI Veterinary Supply Inc was 55.37. The lowest was 27.99. And the median was 39.20.

Be Aware

Shiller P/E Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.

Related Terms

Shiller P/E Ratio

Historical Data

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

MWI Veterinary Supply Inc Annual Data

 Sep05 Sep06 Sep07 Sep08 Sep09 Sep10 Sep11 Sep12 Sep13 Sep14 e10 0.00 0.00 0.00 0.00 0.00 1.70 2.18 2.70 3.29 4.01

MWI Veterinary Supply Inc Quarterly Data

 Jun12 Sep12 Dec12 Mar13 Jun13 Sep13 Dec13 Mar14 Jun14 Sep14 e10 2.56 2.70 2.82 3.01 3.17 3.29 3.46 3.65 3.86 4.01
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