Benzinga's Volume Movers

Green Dot Corporation GDOT shares climbed 32.20 percent to $20.24. The volume of Green Dot shares traded was 2167 percent higher than normal. Green Dot authorized a plan to buyback up to $150 million of its common stock and said it will continue to serve as the issuing bank for the Walmart prepaid debit cards. Second Sight Medical Products Inc EYES surged 6.05 percent to $16.75. The volume of Second Sight Medical Products shares traded 663 percent higher than normal. Second Sight announced positive long-term results of the Argus II Retinal Prosthesis System. Ambarella Inc AMBA shares moved up 8.10 percent to $102.00. The volume of Ambarella traded was 650 percent higher than normal. Canaccord Genuity analyst Matthew D. Ramsay reiterated a Buy rating and $115 price target on Ambarella. Momo Inc (ADR) MOMO shares rose 12.11 percent to $17.59. The volume of Momo shares traded was 621 percent higher than normal. Momo reported the receipt of preliminary non-binding go-private deal at $18.90 per ADS.