Mitek Systems (MITK) had the best day in September 2008 by a US stock on September 3, 2008, returning 150%.

ASSET	DATE	% RETURN
Mitek Systems (MITK)	9/3/2008	150%
Comstock Holding Companies (CHCI)	9/2/2008	146.67%
Clean Energy Technologies, Inc Common Stock (CETY)	9/23/2008	140.01%
Lexaria Bioscience (LEXX)	9/12/2008	126.67%
QXO (QXO)	9/2/2008	125%
QXO (QXO)	9/17/2008	125%
QXO (QXO)	9/22/2008	125%
Precision Optics Corporation, Inc Common stock (POCI)	9/11/2008	120%
New Gold (NGD)	9/19/2008	104.79%
American International (AIG)	9/16/2008	102.7%
Precision Optics Corporation, Inc Common stock (POCI)	9/15/2008	100%
Comstock Holding Companies (CHCI)	9/3/2008	87.18%
Vera Therapeutics (VERA)	9/16/2008	82.86%
Lixte Biotechnology (LIXT)	9/29/2008	81.82%
ACCESS Newswire (ACCS)	9/26/2008	80.02%
Opus Genetics (IRD)	9/18/2008	75.32%
Digital Turbine (APPS)	9/19/2008	75%
CNO Financial (CNO)	9/18/2008	74.72%
Eyepoint Pharmaceuticals (EYPT)	9/23/2008	73.46%
Lightwave Logic (LWLG)	9/19/2008	71.43%
Ames National (ATLO)	9/18/2008	68.44%
Heritage Global (HGBL)	9/4/2008	66.67%
Heritage Global (HGBL)	9/5/2008	66.67%
TOMI Environmental Solutions (TOMZ)	9/11/2008	66.67%
Zivo Bioscience (ZIVO)	9/16/2008	66.67%