OmniVision Technologies Inc. (Nasdaq:OVTI), SAVVIS Inc. (Nasdaq:SVVS) and Hercules Offshore Inc. (Nasdaq:HERO) are among the most actively traded companies in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Ares Capital Corp. (Nasdaq:ARCC), XenoPort Inc. (Nasdaq:XNPT), Sierra Wireless Inc. (Nasdaq:SWIR), Carrizo Oil & Gas Inc. (Nasdaq:CRZO), EnerNOC Inc. (Nasdaq:ENOC) and Tessera Technologies (Nasdaq:TSRA).

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