Allos Therapeutics Inc. (Nasdaq:ALTH), Novavax Inc. (Nasdaq:NVAX) and OmniVision Technologies Inc.(Nasdaq:OVTI) are among the most actively traded companies in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Immunomedics Inc. (Nasdaq:IMMU), Aruba Networks Inc. (Nasdaq:ARUN), Sequenom Inc. (Nasdaq:SQNM), Century Aluminum Co. (Nasdaq:CENX), Solarfun Power Holdings Co Ltd. (Nasdaq:SOLF) and Canadian Solar Inc. (Nasdaq:CSIQ).

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