CardioNet Inc. (Nasdaq:BEAT), United Online Inc. (Nasdaq:UNTD) and Prospect Capital Corp. (Nasdaq:PSEC) are among the most actively traded companies in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Force Protection Inc. (Nasdaq:FRPT), EV Energy Partners L P (Nasdaq:EVEP), Global Sources Ltd. (Nasdaq:GSOL), Ezcorp Inc. (Nasdaq:EZPW), AMAG Pharmaceuticals Inc. (Nasdaq:AMAG) and Spectrum Pharmaceuticals Inc. (Nasdaq:SPPI).

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