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:

		Price at 9:15 ET	Change	% Change	Volume	Year High	Year Low
VNDA	ALVARION LTD	7.92	+0.15	+1.9%	5.7k	15.21	5.20
ERES	ERESEARCHTECHNOLOGY INC	13.95	+0.55	+4.1%	4.6k	13.41	8.28
FTEK	FUEL TECH INC	22.45	-0.93	-4.0%	4.3k	38.20	14.15
CSIQ	CANADIAN SOLAR INC	26.45	-0.09	-0.3%	4.3k	31.44	6.50
IPGP	IPG PHOTONICS CORP	17.27	+0.42	+2.5%	2.6k	23.94	13.80
CHNR	CHINA NATURAL RESOURCES INC	25.00	+0.39	+1.6%	2.6k	50.39	7.00
SNCR	SYNCHRONOSS TECHNOLOGIES INC	23.09	+0.14	+0.6%	2.1k	48.03	15.15
EXXI	ENERGY XXI (BERMUDA) LTD	6.35	-0.09	-1.4%	2.0k	6.75	3.50
ITWO	I2 TECHNOLOGIES INC	10.35	+0.03	+0.3%	2.0k	19.41	10.01
SEED	ORIGIN AGRITECH LIMITED	7.00	+0.30	+4.5%	1.9k	14.99	4.50