Know Labs (KNW) had the highest return between 2002 and 2006 by a US stock, returning 7,785,770%.

ASSET	YEARS	% RETURN
Know Labs (KNW)	2002-2006	7,785,769.97%
Perspective Therapeutics (CATX)	2002-2006	1,633,233.33%
Denison Mines (DNN)	2002-2006	15,785.21%
Houston American Energy (HUSA)	2002-2006	14,620.94%
Frontline (FRO)	2002-2006	14,362.57%
Gulf Resources (GURE)	2002-2006	13,400%
TherapeuticsMD (TXMD)	2002-2006	9,900.01%
NetEase (NTES)	2002-2006	9,869.8%
USANA Health Sciences (USNA)	2002-2006	7,850.14%
Oramed Pharmaceuticals (ORMP)	2002-2006	6,866.14%
US Global Investors (GROW)	2002-2006	6,616.51%
Monster Beverage (MNST)	2002-2006	6,250%
Cheniere Energy (LNG)	2002-2006	5,977.85%
Insteel Industries (IIIN)	2002-2006	5,651.01%
MEDIFAST (MED)	2002-2006	5,365.48%
Encore Capital (ECPG)	2002-2006	4,746.15%
Stonex (SNEX)	2002-2006	4,529.9%
Companhia Siderurgica Nacional ADR (SID)	2002-2006	3,808.68%
DXP Enterprises (DXPE)	2002-2006	3,085.45%
Companhia Energetica de Minas Gerais CEMIG Pref ADR (CIG)	2002-2006	2,817.31%
EZCORP (EZPW)	2002-2006	2,638.92%
ArcelorMittal SA ADR (MT)	2002-2006	2,592.64%
CBAK Energy Technology (CBAT)	2002-2006	2,508%
DSS (DSS)	2002-2006	2,366.67%
Bancolombia SA ADR (CIB)	2002-2006	2,354.82%