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As of today, Pentair PLC's current share price is $63.98. Pentair PLC's E10 for the quarter that ended in Sep. 2014 was $1.12. Pentair PLC's Shiller P/E Ratio for today is 57.13.
During the past 13 years, Pentair PLC's highest Shiller P/E Ratio was 61.30. The lowest was 8.71. And the median was 20.85.
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.
Pentair PLC's adjusted earnings per share data for the three months ended in Sep. 2014 was $-0.968. 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 $1.12 for the trailing six years ended in Sep. 2014.
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.
Pentair PLC's Shiller P/E Ratio for today is calculated as
|Shiller P/E Ratio||=||Share Price||/||E10|
Pentair PLC's E10 for the fiscal year that ended in Dec13 is calculated as:
For example, Pentair PLC'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|
Since most companies do not have as long as 10 years history, GuruFocus uses 6 years to do the calculation.
Current CPI = 235.189.
Pentair PLC Quarterly Data
|per share eps||0.720||0.310||-1.294||0.250||0.750||0.850||0.785||0.590||0.820||-0.980|
|per share eps||0.296||0.360||0.610||0.550||0.337||0.510||0.670||0.510||-1.789||0.620|
|per share eps||0.047||0.180||0.330||0.380|
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.
Pentair PLC Annual Data
Pentair PLC Quarterly Data