Know Labs (KNW) had the highest return between 2003 and 2007 by a US stock, returning 763,220.6%.

ASSET	YEARS	% RETURN
Know Labs (KNW)	2003-2007	763,220.61%
Perspective Therapeutics (CATX)	2003-2007	669,900%
Gulf Resources (GURE)	2003-2007	55,900%
Frontline (FRO)	2003-2007	35,109.99%
Broadwind Energy (BWEN)	2003-2007	17,060.69%
Dawson Geophysical (DWSN)	2003-2007	16,895.01%
Universal Insurance (UVE)	2003-2007	16,648.82%
Denison Mines (DNN)	2003-2007	14,171.73%
VirnetX (VHC)	2003-2007	12,966.41%
Ageagle Aerial Systems (UAVS)	2003-2007	10,566.67%
Champions Oncology (CSBR)	2003-2007	9,233.33%
Flotek Industries (FTK)	2003-2007	8,380%
Monster Beverage (MNST)	2003-2007	8,307.29%
Westwater Resources (WWR)	2003-2007	6,140%
BRF SA ADR (BRFS)	2003-2007	5,577.81%
BlackBerry (BB)	2003-2007	5,066.29%
TherapeuticsMD (TXMD)	2003-2007	4,950.01%
Cheniere Energy (LNG)	2003-2007	4,921.89%
Dmc Global (BOOM)	2003-2007	4,638.81%
Deckers Outdoor (DECK)	2003-2007	4,584.28%
Silicom (SILC)	2003-2007	4,556.13%
Companhia Energetica de Minas Gerais CEMIG Pref ADR (CIG)	2003-2007	4,540%
DXP Enterprises (DXPE)	2003-2007	4,432.04%
Companhia Siderurgica Nacional ADR (SID)	2003-2007	4,192.4%
Axon Enterprise (AXON)	2003-2007	4,163.7%