Vanda Pharmaceuticals Inc (Nasdaq:VNDA), Eresearchtechnology Inc (Nasdaq:ERES) and Fuel Tech Inc (Nasdaq:FTEK) are among the most actively traded companies in Tuesday's trading among companies with market capitalizations under $750 million.

Canadian Solar Inc (Nasdaq:CSIQ), IPG Photonics Corp (Nasdaq:IPGP) and China Natural Resources Inc (Nasdaq:CHNR) are also among the most actively traded companies.

Here are the most actively traded companies among small caps:

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