Dendreon Corp. (Nasdaq:DNDN), DryShips Inc. (Nasdaq:DRYS) and China Medical Technologies Inc. (Nasdaq:CMED) are among the most actively traded companies in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: UAL Corp. (Nasdaq:UAUA), Apogee Enterprises Inc. (Nasdaq:APOG), Energy Conversion Devices Inc. (Nasdaq:ENER), China Sky One Medical Inc. (Nasdaq:CSKI), Alkermes Inc. (Nasdaq:ALKS) and Smith & Wesson Holding Corp. (Nasdaq:SWHC).

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