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As of today, Symantec Corp's current share price is $16.65. Symantec Corp's E10 for the quarter that ended in Dec. 2015 was $-0.04. Symantec Corp's Shiller P/E Ratio for today is .
During the past 13 years, Symantec Corp's highest Shiller P/E Ratio was 67.59. The lowest was 24.89. And the median was 52.93.
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.
Symantec Corp's adjusted earnings per share data for the three months ended in Dec. 2015 was $0.250. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $-0.04 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.
Symantec Corp's Shiller P/E Ratio for today is calculated as
|Shiller P/E Ratio||=||Share Price||/||E10|
Symantec Corp's E10 for the fiscal year that ended in Mar15 is calculated as:
For example, Symantec 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.
Symantec Corp Quarterly Data
|per share eps||0.340||0.400||0.311||0.340||0.350||0.320||0.254||0.170||0.230||0.250|
|per share eps||0.217||0.250||0.240||0.320||0.780||0.220||0.270||0.310||0.266||0.220|
|per share eps||0.160||-8.250||-0.322||0.090||0.190||0.370||0.227||0.200||0.170||0.170|
|per share eps||0.112||0.100||0.130||0.120||0.065||0.100||0.060||0.150||0.218||0.200|
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.
Symantec Corp Annual Data
Symantec Corp Quarterly Data