Gibraltar Industries Inc. (Nasdaq:ROCK), MWI Veterinary Supply Inc. (Nasdaq:MWIV) and Integral System Inc..(Nasdaq:ISYS) are among the biggest percentage losers in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: General Maritime Corp. (Nasdaq:GMR), Knot Inc. (Nasdaq:KNOT), Capital Bank Corp. (Nasdaq:CBKN), Ducommun Inc. (Nasdaq:DCO), Perry Ellis International Inc. (Nasdaq:PERY) and Badger Meter Inc. (Nasdaq:BMI).

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