MDS Inc. (Nasdaq:MDZ), Medicines Co. (Nasdaq:MDCO) and Imergent Inc. (Nasdaq:IIG) are among the biggest percentage gainers in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Computer Task Group Inc. (Nasdaq:CTGX), LCA Vision Inc. (Nasdaq:LCAV), DrdGold ADR (Nasdaq:DROOY), Gammon Gold Inc. (Nasdaq:GRS), CardioNet Inc. (Nasdaq:BEAT) and NetGear Inc. (Nasdaq:NTGR).

Here are the biggest percentage gainers among small caps:

		Price at 9:08 ET	Change	% Change	Volume	Year High	Year Low
MDZ	MDS INC	+29.4%	7.58	6.92	2,393.3k	15.06	4.42
MDCO	MEDICINES CO	+21.8%	10.78	7.97	5,909.5k	28.00	6.15
IIG	IMERGENT INC	+20.6%	7.93	6.43	87.7k	12.15	3.10
CTGX	COMPUTER TASK GROUP INC	+11.5%	6.79	5.92	33.9k	7.06	2.46
LCAV	LCA-VISION INC	+10.6%	6.09	5.40	233.3k	8.02	1.99
DROOY	DRDGOLD LIMITED	+10.3%	7.40	6.70	198.9k	10.59	2.85
GRS	GAMMON GOLD INC	+9.8%	7.11	6.46	983.1k	9.51	2.08
BEAT	CARDIONET INC	+9.8%	7.56	6.52	3,339.2k	30.98	5.60
NTGR	NETGEAR INC	+9.5%	18.76	17.39	551.6k	17.70	8.21
BVSN	BROADVISION INC	+8.7%	15.97	15.97	0.1k	19.00	9.00