Amkor Technology (AMKR) shares ended the last trading session 7.7% higher at 33.75.Thejumpcameonanimpressivevolumewithahigher−than−averagenumberofshareschanginghandsinthesession.Thiscomparestothestock′s6.640.This chip packaging and test services provider is expected to post quarterly earnings of $0.10 per share in its upcoming ...