First California Financial Group Inc. (Nasdaq:FCAL), Wright Express Corp. (Nasdaq:WXS) and Molecular Insight Pharmaceuticals Inc. (Nasdaq:MIPI) are among the biggest percentage losers in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Alyst Acquisition Corp. (Nasdaq:AYA), Summit Financial Group Inc. (Nasdaq:SMMF), Warwick Valley Telephone Co. (Nasdaq:WWVY), W Holding Co Inc. (Nasdaq:WHI), Harmonic Inc. (Nasdaq:HLIT) and Bancorp Bank (Nasdaq:TBBK).

Here are the biggest percentage losers among small caps:

		Price at 9:08 ET	Change	% Change	Volume	Year High	Year Low
FCAL	FIRST CALIFORNIA FINANCIAL G	6.04	-0.96	-13.7%	12.1k	9.00	3.62
WXS	WRIGHT EXPRESS CORP	22.62	-2.82	-11.1%	1,152.4k	32.46	8.21
MIPI	MOLECULAR INSIGHT PHARM INC	5.40	-0.53	-8.9%	92.7k	8.90	1.15
AYA	ALYST ACQUISTION CORP	6.50	-0.59	-8.3%	4.4k	8.80	6.48
SMMF	SUMMIT FINANCIAL GROUP INC	5.45	-0.48	-8.1%	12.1k	13.55	5.25
WWVY	WARWICK VALLEY TEL CO	10.54	-0.91	-7.9%	16.5k	13.44	7.95
WHI	W HLDG CO INC	15.43	-1.31	-7.8%	48.9k	42.28	6.24
HLIT	HARMONIC INC	5.54	-0.45	-7.5%	3,445.8k	10.23	3.76
TBBK	BANCORP INC DEL	5.94	-0.45	-7.0%	30.8k	9.35	2.09
FIT	HEALTH FITNESS CORP	5.21	-0.39	-7.0%	80.1k	5.75	1.55