Builders FirstSource Inc. (Nasdaq:BLDR), 51Job Inc. (Nasdaq:JOBS) and US Auto Parts Network Inc. (Nasdaq:PRTS) are among the new 52-week highs in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: IncrediMail Ltd. (Nasdaq:MAIL), Cogent Communications Group Inc. (Nasdaq:CCOI), IEC Electronics Corp. (Nasdaq:IEC), Tenneco Inc. (Nasdaq:TEN), Targacept Inc (Nasdaq:TRGT) and Cato Corp. (Nasdaq:CTR).

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