CastlePoint Holdings Ltd. (Nasdaq:CPHL), DivX Inc. (Nasdaq:DIVX) and DryShips Inc. (Nasdaq:DRYS) are among the most actively traded companies in Tuesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Given Imaging Ltd. (Nasdaq:GIVN), Sigma Designs Inc. (Nasdaq:SIGM), Central European Media Enterprises Ltd. (Nasdaq:CETV), TBS International Ltd. (Nasdaq:TBSI), Transmeta Corp (Nasdaq:TMTA) and Canadian Solar Inc. (Nasdaq:CSIQ).

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