DryShips Inc. (Nasdaq:DRYS), UAL Corp. (Nasdaq:UAUA) and Geron Corp. (Nasdaq:GERN) are among the most actively traded companies in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Smart Balance Inc. (Nasdaq:SMBL), Cabot Microelectronics Corp. (Nasdaq:CCMP), Eagle Bulk Shipping Inc. (Nasdaq:EGLE), A Power Energy Generation Systems Ltd. (Nasdaq:APWR), Almost Family Inc. (Nasdaq:AFAM) and The9 Ltd. (Nasdaq:NCTY).

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