AMAG Pharmaceuticals, DryShips and Optimer Pharmaceuticals lead small-cap volume in pre-market

AMAG Pharmaceuticals Inc. (Nasdaq:AMAG), DryShips Inc. (Nasdaq:DRYS) and Optimer Pharmaceuticals Inc. (Nasdaq:OPTR) are among the most actively traded companies in Thursday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Solarfun Power Holdings Co Ltd. (Nasdaq:SOLF), TBS International Ltd. (Nasdaq:TBSI), United Community Banks Inc. (Nasdaq:UCBI), Canadian Solar Inc. (Nasdaq:CSIQ), A Power Energy Generation Systems Ltd. (Nasdaq:APWR) and Pan American Silver Corp. (Nasdaq:PAAS).

Here are the most actively traded companies among small caps:

		Price at 9:03 ET	Change	% Change	Volume	Year High	Year Low
AMAG	AMAG PHARMACEUTICALS INC	31.25	+12.88	+70.1%	977.9k	66.94	18.33
DRYS	DRYSHIPS INC	9.38	+0.16	+1.7%	66.7k	116.43	8.67
OPTR	OPTIMER PHARMACEUTICALS INC	6.77	+0.79	+13.2%	17.6k	9.75	3.30
SOLF	SOLARFUN POWER HOLDINGS CO L	5.07	-0.16	-3.1%	8.7k	40.19	4.20
TBSI	TBS INTERNATIONAL LIMITED	6.20	+0.04	+0.6%	7.0k	61.95	6.10
UCBI	UNITED CMNTY BKS BLAIRSVLE G	11.50	-0.05	-0.4%	6.3k	20.97	7.58
CSIQ	CANADIAN SOLAR INC	5.67	-0.08	-1.4%	4.3k	51.80	5.55
APWR	A POWER ENERGY GENERAT SYS L	4.76	-0.37	-7.2%	3.9k	31.89	3.97
PAAS	PAN AMERICAN SILVER CORP	9.11	-0.66	-6.8%	2.8k	44.10	9.10
LCRD	LASERCARD CORP	4.85	-0.62	-11.3%	2.0k	12.94	3.02

---