Builders FirstSource Inc. (Nasdaq:BLDR), China Medical Technologies Inc. (Nasdaq:CMED) and Books-A-Million Inc. (Nasdaq:BAMM) are among the biggest percentage losers in Tuesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Sequenom Inc. (Nasdaq:SQNM), CPI Corp. (Nasdaq:CPY), Benihana National Corp. (Nasdaq:BNHNA), Female Health Co. (Nasdaq:FHCO), Facet Biotech Corp. (Nasdaq:FACT) and SIGA Technologies Inc. (Nasdaq:SIGA).

Here are the biggest percentage losers among small caps:

		Price at 9:08 ET	Change	% Change	Volume	Year High	Year Low
BLDR	BUILDERS FIRSTSOURCE INC	-31.5%	8.30	5.11	655.4k	8.60	0.82
CMED	CHINA MED TECHNOLOGIES INC	-15.8%	14.25	12.90	2,258.6k	46.84	11.41
BAMM	BOOKS-A-MILLION INC	-15.7%	13.72	11.26	286.2k	15.00	1.70
SQNM	SEQUENOM INC	-15.2%	6.14	5.37	12,091.3k	29.14	2.86
CPY	CPI CORP	-14.7%	18.22	15.40	94.5k	20.00	1.00
BNHNA	BENIHANA INC	-12.7%	6.76	6.00	63.1k	8.38	1.50
FHCO	FEMALE HEALTH CO	-12.5%	6.70	5.66	681.2k	7.79	1.76
FACT	FACET BIOTECH CORP	-12.0%	9.86	8.82	315.7k	50.00	5.86
SIGA	SIGA TECHNOLOGIES INC	-10.8%	7.28	6.25	701.6k	8.88	1.94
LIMS	STARLIMS TECHNOLOGIES LTD	-10.4%	8.93	7.85	4.2k	9.20	3.10