Perspective Therapeutics (CATX) had the highest return between 2003 and 2007 by a US stock, returning 669,900%.

ASSET	YEARS	% RETURN
Perspective Therapeutics (CATX)	2003-2007	669,900%
Gulf Resources (GURE)	2003-2007	55,900%
Frontline (FRO)	2003-2007	35,097.6%
Know Labs (KNW)	2003-2007	18,983.97%
Broadwind Energy (BWEN)	2003-2007	17,060.69%
Dawson Geophysical (DWSN)	2003-2007	16,895.01%
Universal Insurance (UVE)	2003-2007	16,643.86%
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%
Millicom International Cellular (TIGO)	2003-2007	6,042.47%
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	4,921.4%
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	4,536.98%
DXP Enterprises (DXPE)	2003-2007	4,432.04%
Axon Enterprise (AXON)	2003-2007	4,163.7%