Calgon Carbon Corp. (Nasdaq:CCC), American Apparel Inc. (Nasdaq:APP) and BancTrust Financial Group Inc. (Nasdaq:BTFG) are among the biggest percentage losers in Monday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Lincoln Educational Services Corp. (Nasdaq:LINC), Quidel Corp. (Nasdaq:QDEL), Educational Development Corp. (Nasdaq:EDUC), Comtech Telecommunications Corp. (Nasdaq:CMTL), Koss Corp. (Nasdaq:KOSS) and Ocean Shore Holding Co. (Nasdaq:OSHC).

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