Spero Therapeutics, Inc. (SPRO) came out with a quarterly loss of 0.25pershareversustheZacksConsensusEstimateofalossof0.55. This compares to loss of 0.24pershareayearago.Thesefiguresareadjustedfornon−recurringitems.Thisquarterlyreportrepresentsanearningssurpriseof54.550.35 per share when it actually produced a loss of $0.38, delivering a surprise of -8.57%.Over the last four quarters, the company has ...