Navigator Holdings (NVGS) shares ended the last trading session 8.4% higher at 11.84.Thejumpcameonanimpressivevolumewithahigher−than−averagenumberofshareschanginghandsinthesession.Thiscomparestothestock′s24.240 million Tap Issue.This transportaion company for the natural gas and and chemical industry is expected to post quarterly ...