Medivation Inc. (Nasdaq:MDVN), Blue Coat Systems Inc. (Nasdaq:BCSI) and Star Bulk Carriers Corp. (Nasdaq:SBLK) are among the most actively traded companies in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: MAP Pharmaceuticals Inc. (Nasdaq:MAPP), Solarfun Power Holdings Co Ltd. (Nasdaq:SOLF), Take Two Interactive Software Inc. (Nasdaq:TTWO), Eagle Bulk Shipping Inc. (Nasdaq:EGLE), CardioNet Inc. (Nasdaq:BEAT) and A Power Energy Generation Systems Ltd. (Nasdaq:APWR).

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