Benzinga's Volume Movers

Acme Packet APKT shares moved up 22.52% to $29.32 at 10:25 am. The volume of Acme Packet shares traded was 2864% higher than normal. Oracle ORCL announced its plans to buy Acme Packet APKT for $1.9 billion. Gulfmark Offshore GLF shares gained 2.21% to $37.48. The volume of Gulfmark Offshore shares traded was 293% higher than normal. Gulfmark Offshore has a dividend yield of 2.70%. American Railcar Industries ARII shares rose 0.94% to $39.64. The volume of American Railcar Industries shares traded was 209% higher than normal. American Railcar's PEG ratio is 0.97. Humana HUM shares climbed 3.82% to $78.23. The volume of Humana shares traded was 202% higher than normal. Humana reported upbeat fourth-quarter net profit.