Quest Resource Corp (Nasdaq:QRCP), Boston Pri Finl Holdings (Nasdaq:BPFH) and Vasco Data Security International Inc (Nasdaq:VDSI) are among the most actively traded companies in Thursday's trading among companies with market capitalizations under $1 billion.

Also included among the results: TASER International Inc (Nasdaq:TASR), Vital Signs Inc (Nasdaq:VITL), HireRight Inc (Nasdaq:HIRE), SIERRA WIRELESS INC (Nasdaq:SWIR), MKS Instruments Inc (Nasdaq:MKSI) and Crocs Inc (Nasdaq:CROX).

Here are the most actively traded companies among small caps:

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