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As of today, Spirit Airlines Inc's current share price is $48.21. Spirit Airlines Inc's E10 for the quarter that ended in Sep. 2016 was $0.00. Spirit Airlines Inc's Shiller P/E Ratio for today is .
During the past 8 years, Spirit Airlines Inc's highest Shiller P/E Ratio was 33.67. The lowest was 0.00. And the median was 26.39.
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.
Spirit Airlines Inc's adjusted earnings per share data for the three months ended in Sep. 2016 was $1.170. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.00 for the trailing ten years ended in Sep. 2016.
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.
Spirit Airlines Inc's Shiller P/E Ratio for today is calculated as
|Shiller P/E Ratio||=||Share Price||/||E10|
Spirit Airlines Inc's E10 for the fiscal year that ended in Dec15 is calculated as:
For example, Spirit Airlines Inc's adjusted earnings per share data for the three months ended in Sep. 2016 was:
|Adj_EPS||=||Earnigns per Share||/||CPI of Sep. 2016 (Change)||*||Current CPI (Sep. 2016)|
Current CPI (Sep. 2016) = 240.956.
Spirit Airlines Inc does not have a history long enough to calculate E10. Therefore GuruFocus does not calculate it.
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.
Spirit Airlines Inc Annual Data
Spirit Airlines Inc Quarterly Data