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As of today, Corning Inc's current share price is $24.40. Corning Inc's E10 for the quarter that ended in Sep. 2014 was $1.57. Corning Inc's Shiller P/E Ratio for today is 15.54.
During the past 13 years, Corning Inc's highest Shiller P/E Ratio was 912.00. The lowest was 5.42. And the median was 11.84.
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.
Corning Inc's adjusted earnings per share data for the three months ended in Sep. 2014 was $0.707. 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 $1.57 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.
Corning Inc's Shiller P/E Ratio for today is calculated as
|Shiller P/E Ratio||=||Share Price||/||E10|
Corning Inc's E10 for the fiscal year that ended in Dec13 is calculated as:
For example, Corning Inc'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 = 233.808.
Corning Inc Quarterly Data
|per share eps||0.360||0.098||0.330||0.430||0.280||0.295||0.200||0.110||0.720||0.700|
|per share eps||0.520||0.580||0.500||0.660||0.470||0.470||0.510||0.314||0.310||0.310|
|per share eps||0.010||0.390||0.410||0.469|
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.
Corning Inc Annual Data
Corning Inc Quarterly Data