Targanta Therapeutics Corp. (Nasdaq:TARG), Aladdin Knowledge Systems Ltd. (Nasdaq:ALDN) and Republic Airways Holdings Inc. (Nasdaq:RJET) are among the biggest percentage gainers in Thursday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Jackson Hewitt Tax Service Inc. (Nasdaq:JTX), CPI International Inc. (Nasdaq:CPII), Peapack Gladstone Financial Corp. (Nasdaq:PGC), Renaissance Learning Inc. (Nasdaq:RLRN), Northrim BanCorp Inc. (Nasdaq:NRIM) and Zygo Corp. (Nasdaq:ZIGO).

Here are the biggest percentage gainers among small caps:

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