Royale Energy Inc (Nasdaq:ROYL), Carrols Restaurant Group (Nasdaq:TAST) and Avant Immunotherapeutics Inc (Nasdaq:AVAN) are among the most actively traded companies in Tuesday's trading among companies with market capitalizations under $1 billion.

SAVVIS Inc (Nasdaq:SVVS), USA Mobility Inc (Nasdaq:USMO) and Sun Healthcare Group Inc (Nasdaq:SUNH) are also among the most actively traded companies.

Here are the most actively traded companies among small caps:

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