Benzinga's Volume Movers

American Capital

shares climbed 6.62% to $15.63. The volume of American Capital shares traded was 1157% higher than normal. American Capital reported Q3 results and announced its plan to split into three companies. Polypore International

shares moved up 21.10% to $52.00. The volume of Polypore International traded was 1056% higher than normal. Polypore reported upbeat Q3 earnings. Polypore and Panasonic signed a letter of intent for Lithium-Ion battery separator development. Sierra Wireless

shares rose 27.25% to $33.77. The volume of Sierra Wireless shares traded was 746% higher than normal. Sierra Wireless reported upbeat Q3 results and issued a strong Q4 forecast. Nxstage Medical

surged 9.61% to $16.66. The volume of Nxstage Medical shares traded 698% higher than normal. Nxstage Medical reported better-than-expected Q3 results and raised its FY14 revenue forecast.