Future Fintech (FTFT) had the highest return between 2006 and 2008 by a US stock, returning 1,776,098.9%.

ASSET	YEARS	% RETURN
Future Fintech (FTFT)	2006-2008	1,776,098.93%
India Globalization Capital (IGC)	2006-2008	1,616,566.67%
Natwest (NWG)	2006-2008	953,400%
Northern Oil & Gas (NOG)	2006-2008	838,607.69%
Know Labs (KNW)	2006-2008	534,224.43%
Ring Energy (REI)	2006-2008	146,566.67%
NextTrip (NTRP)	2006-2008	99,900%
Ocean Power Technologies (OPTT)	2006-2008	74,233.33%
PharmaCyte Biotech (PMCB)	2006-2008	22,998.04%
Ageagle Aerial Systems (UAVS)	2006-2008	19,900%
Gyre Therapeutics (GYRE)	2006-2008	7,448.45%
Weatherford International (WFRD)	2006-2008	7,300%
Champions Oncology (CSBR)	2006-2008	2,060%
LifeMD (LFMD)	2006-2008	1,800%
Oxley Bridge Acquisition Limited Class A Ordinary Shares (OBA)	2006-2008	1,723.53%
TOMI Environmental Solutions (TOMZ)	2006-2008	1,650%
Arena (AREN)	2006-2008	1,547.58%
MiMedx (MDXG)	2006-2008	1,323.03%
INVO Fertility (IVF)	2006-2008	1,275%
Taoping (TAOP)	2006-2008	966.67%
OPTIMIZERx (OPRX)	2006-2008	787.14%
Sanara Medtech (SMTI)	2006-2008	644.44%
Riot Blockchain (RIOT)	2006-2008	517%
Theriva Biologics (TOVX)	2006-2008	500.23%
Lixte Biotechnology (LIXT)	2006-2008	464.36%