Beasley Broadcast Group, Inc. (Nasdaq:BBGI), Helicos BioSciences Corp. (Nasdaq:HLCS) and CSK Auto Corp. (NYSE:CAO) are among the biggest percentage gainers in Tuesday's trading among companies with market capitalizations under $750 million.

EnteroMedics Inc. (Nasdaq:ETRM), Crawford & Company (NYSE:CRD.B) and Idenix Pharmaceuticals, Inc. (Nasdaq:IDIX) are also among the top small-cap percentage gainers.

Here are Tuesday's biggest percentage gainers:

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