Flotek Industries (FTK) had the highest return between 1999 and 2006 by a US stock, returning 42,074,900%.

ASSET	YEARS	% RETURN
Flotek Industries (FTK)	1999-2006	42,074,900%
Hirequest (HQI)	1999-2006	28,248,100%
Perspective Therapeutics (CATX)	1999-2006	1,633,233.33%
Opus Genetics (IRD)	1999-2006	647,900%
Alaunos Therapeutics (TCRT)	1999-2006	221,011.11%
Know Labs (KNW)	1999-2006	194,556.49%
Supercom (SPCB)	1999-2006	139,901.12%
Hudbay Minerals (HBM)	1999-2006	93,564.13%
Houston American Energy (HUSA)	1999-2006	14,620.94%
Denison Mines (DNN)	1999-2006	13,873.82%
Frontline (FRO)	1999-2006	10,922.32%
TherapeuticsMD (TXMD)	1999-2006	9,900.01%
Companhia Energetica de Minas Gerais CEMIG Pref ADR (CIG)	1999-2006	8,675%
Oramed Pharmaceuticals (ORMP)	1999-2006	6,866.14%
Companhia Siderurgica Nacional ADR (SID)	1999-2006	5,569.15%
Monster Beverage (MNST)	1999-2006	4,920.93%
BP Prudhoe Bay Royalty Trust (BPT)	1999-2006	4,635.78%
US Global Investors (GROW)	1999-2006	4,198.96%
Suzano Papel e Celulose SA ADR (SUZ)	1999-2006	3,764.1%
SSR Mining (SSRM)	1999-2006	3,543.18%
Versus Systems Inc. (VS)	1999-2006	3,400%
Gerdau SA ADR (GGB)	1999-2006	3,388.42%
McEwen Mining (MUX)	1999-2006	3,266.55%
Tandy Leather Factory (TLF)	1999-2006	3,127.48%
Worksport (WKSP)	1999-2006	3,100%