DryShips, Hercules Offshore and Tessera Technologies lead small-cap volume in pre-market

DryShips Inc. (Nasdaq:DRYS), Hercules Offshore Inc. (Nasdaq:HERO) and Tessera Technologies (Nasdaq:TSRA) are among the most actively traded companies in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Silver Standard Resources Inc. (Nasdaq:SSRI), Canadian Solar Inc. (Nasdaq:CSIQ), Pan American Silver Corp. (Nasdaq:PAAS), ViroPharma Inc. (Nasdaq:VPHM), AeroVironment Inc. (Nasdaq:AVAV) and Buffalo Wild Wings Inc. (Nasdaq:BWLD).

Here are the most actively traded companies among small caps:

		Price at 9:06 ET	Change	% Change	Volume	Year High	Year Low
DRYS	DRYSHIPS INC	14.25	+0.20	+1.4%	46.4k	121.44	12.25
HERO	HERCULES OFFSHORE INC	5.87	+0.74	+14.4%	18.8k	39.47	4.77
TSRA	TESSERA TECHNOLOGIES INC	15.50	+2.59	+20.1%	10.6k	44.97	8.70
SSRI	SILVER STD RES INC	7.00	+0.69	+10.9%	9.8k	48.16	5.35
CSIQ	CANADIAN SOLAR INC	8.60	+0.00	+0.0%	7.2k	51.80	7.20
PAAS	PAN AMERICAN SILVER CORP	10.65	+0.70	+7.0%	6.7k	44.10	9.10
VPHM	VIROPHARMA INC	11.67	+0.60	+5.4%	2.5k	15.16	7.11
AVAV	AEROVIRONMENT INC	31.50	+0.92	+3.0%	2.5k	35.63	18.44
BWLD	BUFFALO WILD WINGS INC	25.00	-0.13	-0.5%	2.1k	44.98	18.25
BEBE	BEBE STORES INC	7.64	+0.43	+6.0%	2.0k	14.39	6.13

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