Know Labs (KNW) had the highest return between 2003 and 2006 by a US stock, returning 7,785,770%.

ASSET	YEARS	% RETURN
Know Labs (KNW)	2003-2006	7,785,769.97%
Perspective Therapeutics (CATX)	2003-2006	1,633,233.33%
Denison Mines (DNN)	2003-2006	16,207.21%
Frontline (FRO)	2003-2006	14,697.26%
Dawson Geophysical (DWSN)	2003-2006	13,838.1%
Gulf Resources (GURE)	2003-2006	13,400%
TherapeuticsMD (TXMD)	2003-2006	9,900.01%
Oramed Pharmaceuticals (ORMP)	2003-2006	6,866.14%
Monster Beverage (MNST)	2003-2006	6,293.39%
Universal Insurance (UVE)	2003-2006	5,977.19%
Cheniere Energy (LNG)	2003-2006	4,341.41%
Companhia Energetica de Minas Gerais CEMIG Pref ADR (CIG)	2003-2006	4,085.37%
Insteel Industries (IIIN)	2003-2006	3,926.08%
DXP Enterprises (DXPE)	2003-2006	3,301.94%
Flotek Industries (FTK)	2003-2006	3,200%
Inuvo (INUV)	2003-2006	3,130%
BRF SA ADR (BRFS)	2003-2006	3,038.02%
Silicom (SILC)	2003-2006	2,989.65%
Smith Micro Software (SMSI)	2003-2006	2,919.15%
Akamai Technologies (AKAM)	2003-2006	2,851.11%
Westwater Resources (WWR)	2003-2006	2,800%
US Global Investors (GROW)	2003-2006	2,710.53%
Banco Bradesco SA ADR (BBD)	2003-2006	2,442.72%
Millicom International Cellular (TIGO)	2003-2006	2,307.93%
Broadwind Energy (BWEN)	2003-2006	2,288.1%