Aemetis (AMTX) had the highest return on April 21, 2008 by a US stock, returning 41.8%.

ASSET	DATE	% RETURN
Aemetis (AMTX)	4/21/2008	41.76%
BioRestorative Therapies (BRTX)	4/21/2008	33.33%
Portage Biotech (PRTG)	4/21/2008	20%
AlphaTON Capital (ATON)	4/21/2008	20%
Supercom (SPCB)	4/21/2008	19.31%
Mexco Energy (MXC)	4/21/2008	18.87%
Milestone Scientific (MLSS)	4/21/2008	18.75%
Dyadic International (DYAI)	4/21/2008	16.67%
Comstock Holding Companies (CHCI)	4/21/2008	16.13%
Dolphin Entertainment (DLPN)	4/21/2008	16.07%
VirTra (VTSI)	4/21/2008	13.33%
Network-1 Technologies (NTIP)	4/21/2008	13.05%
Clearfield (CLFD)	4/21/2008	11.48%
Usio (USIO)	4/21/2008	11.11%
Emeren (SOL)	4/21/2008	10.89%
Enveric Biosciences (ENVB)	4/21/2008	10.81%
Achieve Life Sciences (ACHV)	4/21/2008	10.53%
Lexicon Pharmaceuticals (LXRX)	4/21/2008	9.84%
Bridgeline Digital (BLIN)	4/21/2008	9.79%
Pathfinder Bancorp (PBHC)	4/21/2008	9.76%
Hirequest (HQI)	4/21/2008	9.72%
Good Times Restaurants (GTIM)	4/21/2008	9.18%
Champions Oncology (CSBR)	4/21/2008	9.09%
NanoViricides (NNVC)	4/21/2008	8.77%
Synchronoss Technologies (SNCR)	4/21/2008	8.38%