Benzinga's Volume Movers

Allot Communications Ltd ALLT shares moved up 7.35% to $15.91 at 10:05 am. The volume of ALLT shares traded was 219% higher than normal. ALLT reported upbeat Q2 results. Stamps.com Inc STMP shares rose 4.06% to $17.43. The volume of STMP shares traded was 184% higher than normal. STMP recently introduced PC Postage Version 8.9 software. Vistaprint NV VPRT shares climbed 3.03% to $27.51. The volume of VPRT shares traded was 131% higher than normal. VPRT's PEG ratio is 0.82. Jazz Pharmaceuticals Inc JAZZ shares gained 2.97% to $41.67. The volume of JAZZ shares traded was 41% higher than normal. JAZZ's trailing-twelve-month operating margin is 38.61%.