Update 12:15pm: Adds more details from letter. Centene Corp. (NYSE:CNC) and CNH Industrial (NYSE:CNH) were added as new positions at David Einhorn's Greenlight Capital hedge fund in the second ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...