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As of today, Entergy Corp's current share price is $75.78. Entergy Corp's E10 for the quarter that ended in Dec. 2015 was $5.46. Entergy Corp's Shiller P/E Ratio for today is 13.88.
During the past 13 years, Entergy Corp's highest Shiller P/E Ratio was 31.91. The lowest was 10.21. And the median was 13.77.
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. 2015 was $0.558. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $5.46 for the trailing ten years ended in Dec. 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.
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 Dec14 is calculated as:
For example, Entergy Corp's adjusted earnings per share data for the three months ended in Dec. 2015 was:
|Adj_EPS||=||Earnigns per Share||/||CPI of Dec. 2015 (Change)||*||Current CPI (Dec. 2015)|
Current CPI (Dec. 2015) = 236.525.
Entergy Corp Quarterly Data
|per share eps||0.822||2.240||1.050||1.270||0.662||1.650||0.830||-4.040||0.558||1.280|
|per share eps||1.760||3.530||0.871||-0.860||2.060||1.890||1.664||0.900||0.920||1.340|
|per share eps||0.872||1.200||1.140||2.320||1.641||1.120||1.650||2.620||1.258||1.380|
|per share eps||1.330||1.830||1.143||1.030||1.320||2.300||0.933||1.560||1.370||2.410|
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.
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