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As of today, Entergy Corp's current share price is $72.01. Entergy Corp's E10 for the quarter that ended in Dec. 2013 was $6.22. Entergy Corp's Shiller P/E Ratio for today is 11.30.
During the past 13 years, Entergy Corp's highest Shiller P/E Ratio was 28.25. The lowest was 9.50. And the median was 15.85.
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.
Entergy Corp's adjusted earnings per share data for the three months ended in Dec. 2013 was $0.834. 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 $6.22 for the trailing six years ended in Dec. 2013.
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.
Entergy Corp's Shiller P/E Ratio for today is calculated as
|Shiller P/E Ratio||=||Share Price||/||E10|
Entergy Corp's E10 for the fiscal year that ended in Dec13 is calculated as:
For example, Entergy Corp's adjusted earnings per share data for the three months ended in Dec. 2013 was:
|Adj_EPS||=||Earnigns per Share||/||CPI of Dec. 2013||*||CPI of Current|
Since most companies do not have as long as 10 years history, here we use 6 years to calculate:
Current CPI = 236.511.
Entergy Corp Quarterly Data
|per share eps||3.530||0.871||-0.860||2.060||1.890||1.664||0.900||0.920||1.340||0.822|
|per share eps||1.200||1.140||2.320||1.641||1.120||1.650||2.620||1.258||1.380||1.760|
|per share eps||1.560||1.370||2.410||0.872|
Add all the adjusted EPS together and divide 6 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.
The Shiller P/E assumes that over the long term, businesses and profitability revert to their means. If a companys business model does not work in the future compared with the past, the Shiller P/E and P/S ratio will give false valuations.
Entergy Corp Annual Data
Entergy Corp Quarterly Data