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As of today, Viacom Inc's current share price is $40.90. Viacom Inc's E10 for the quarter that ended in Dec. 2015 was $3.40. Viacom Inc's Shiller P/E Ratio for today is 12.03.
During the past 13 years, Viacom Inc's highest Shiller P/E Ratio was 25.22. The lowest was 10.09. And the median was 20.44.
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.
Viacom Inc's adjusted earnings per share data for the three months ended in Dec. 2015 was $1.130. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $3.40 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.
Viacom Inc's Shiller P/E Ratio for today is calculated as
|Shiller P/E Ratio||=||Share Price||/||E10|
Viacom Inc's E10 for the fiscal year that ended in Sep15 is calculated as:
For example, Viacom Inc'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.
Viacom Inc Quarterly Data
|per share eps||1.683||1.200||1.130||1.400||1.717||1.200||-0.130||1.470||2.210||1.130|
|per share eps||0.630||0.970||0.999||0.380||1.070||1.010||1.256||0.920||0.960||1.310|
|per share eps||0.650||0.283||0.290||0.460||0.760||1.139||0.400||0.690||0.309||1.000|
|per share eps||0.430||0.610||0.500||0.689||0.290||0.630||0.960||0.858||0.420||0.650|
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.
Viacom Inc Annual Data
Viacom Inc Quarterly Data