Chemgenex Pharmaceuticals tops Tuesday small-cap percentage losers

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Rodman & Renshaw maintained its "market perform" rating on biopharmaceutical company Medivation, Inc. (Nasdaq: MDVN).

Cyberonics, Inc. (Nasdaq: CYBX) reported a wider quarterly loss and revenue that didn’t meet analysts’ expectations.

Three patients in Idenix Pharmaceuticals, Inc. (Nasdaq: IDIX) hepatitis C study had to discontinue due to what Idenix described as "adverse events," related to problems with toxicity.

These are the biggest percentage losers in Tuesday's trading among companies with market capitalizations under $500 million:

		Price at		%
		4:00 et	Change	Change	Volume	Year High	Year Low
CXSP	CHEMGENEX PHARMACEUTICALS LT	11.10	-1.43	-11.4%	3.3k	13.25	3.85
MDVN	MEDIVATION INC	17.65	-2.15	-10.9%	2,814.7k	21.85	3.80
AZZ	AZZ INC	27.80	-3.15	-10.2%	719.3k	37.36	10.66
CHIP	VERICHIP CORP	7.16	-0.79	-9.9%	109.3k	9.75	4.27
TNCC	TENNESSEE COMMERCE BANCORP I	25.51	-2.51	-9.0%	72.1k	32.20	15.91
OLED	CAMBRIDGE DISPLAY TECH INC	5.64	-0.54	-8.7%	116.7k	8.05	4.26
NGA	NORTH AMERN GALVANZNG & CTNG	8.51	-0.81	-8.7%	547.8k	11.64	2.41
BRLC	SYNTAX BRILLIAN CORP	5.45	-0.49	-8.2%	4,225.9k	11.70	2.11
BTJ	BOLT TECHNOLOGY CORP	35.95	-3.21	-8.2%	639.9k	46.25	10.26
LEV	LEVITT CORP	9.04	-0.76	-7.8%	151.3k	16.10	8.47
CYBX	CYBERONICS INC	16.56	-1.38	-7.7%	1,177.3k	27.55	14.70
IDIX	IDENIX PHARMACEUTICALS INC	6.70	-0.53	-7.3%	9,536.6k	11.21	6.59