Perspective Therapeutics (CATX) had the highest return between 2001 and 2006 by a US stock, returning 1,633,233.3%.

ASSET	YEARS	% RETURN
Perspective Therapeutics (CATX)	2001-2006	1,633,233.33%
United Community Banks (UCB)	2001-2006	917,689.43%
Know Labs (KNW)	2001-2006	194,556.49%
Houston American Energy (HUSA)	2001-2006	14,620.94%
Denison Mines (DNN)	2001-2006	13,873.82%
Gulf Resources (GURE)	2001-2006	13,400%
Frontline (FRO)	2001-2006	10,922.32%
TherapeuticsMD (TXMD)	2001-2006	9,900.01%
Ziff Davis (ZD)	2001-2006	9,588.18%
US Global Investors (GROW)	2001-2006	7,065.4%
Monster Beverage (MNST)	2001-2006	6,969.77%
Oramed Pharmaceuticals (ORMP)	2001-2006	6,866.14%
MEDIFAST (MED)	2001-2006	6,517.11%
DXP Enterprises (DXPE)	2001-2006	6,128.23%
USANA Health Sciences (USNA)	2001-2006	5,805.35%
Dmc Global (BOOM)	2001-2006	5,240.5%
PetMed Express (PETS)	2001-2006	5,240.34%
Smith & Wesson Brands (SWBI)	2001-2006	5,070.54%
EZCORP (EZPW)	2001-2006	3,848.97%
Companhia Energetica de Minas Gerais CEMIG Pref ADR (CIG)	2001-2006	3,728.85%
Companhia Siderurgica Nacional ADR (SID)	2001-2006	3,683.71%
Encore Capital (ECPG)	2001-2006	3,500%
AMREP (AXR)	2001-2006	3,434.73%
Versus Systems Inc. (VS)	2001-2006	3,400%
FirstCash (FCFS)	2001-2006	3,302.2%