Williams Controls Inc. (Nasdaq:WMCO), Monroe Bancorp (Nasdaq:MROE) and First California Financial Group Inc. (Nasdaq:FCAL) are among the biggest percentage gainers in Tuesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Encore Wire Corp. (Nasdaq:WIRE), K12 Inc. (Nasdaq:LRN), Skilled Healthcare Group Inc. (Nasdaq:SKH), Firstbank Corp. (Nasdaq:FBMI), Radware Ltd. (Nasdaq:RDWR) and John Bean Technologies Corp. (Nasdaq:JBT).

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