Duff & Phelps Corp. (NYSE: DUF), Global Sources Ltd. (Nasdaq: GSOL) and Systemax Inc. (NYSE: SYX) are among the biggest percentage gainers in Tuesday's trading among companies with market capitalizations under $750 million.

Inter Parfums, Inc. (Nasdaq: IPAR), Hudson Highland Group, Inc. (Nasdaq: HHGP) and Capstead Mortgage Corp. (NYSE: CMO) are also among the top small-cap percentage gainers.

Here are today's biggest percentage gainers:

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