Energy XXI (Nasdaq:EXXI), Canadian Solar Inc (Nasdaq:CSIQ) and Crocs Inc (Nasdaq:CROX) are among the most actively traded companies in Tuesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Brigham Exploration Co (Nasdaq:BEXP), FCStone Group, Inc. (Nasdaq:FCSX), Gulfport Energy Corp (Nasdaq:GPOR), Solarfun Power Holdings Co Ltd (Nasdaq:SOLF), OmniVision Technologies Inc (Nasdaq:OVTI) and Crucell NV ADR (Nasdaq:CRXL).

Here are the most actively traded companies among small caps:

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