Duke Energy (DUK) came out with quarterly earnings of $1.62 per share, missing the Zacks Consensus Estimate of $1.73 per share. This compares to earnings of $1.94 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of -6.36%. A quarter ago, it was expected that this electric utility would post earnings of $1.01 per share when it actually produced earnings of $1.18, delivering a surprise of 16.83%.Over the last four quarters, the comp ...