Dolly Varden Silver (DVS) had the highest return between 2011 and 2012 by a US stock, returning 43,900%.

ASSET	YEARS	% RETURN
Dolly Varden Silver (DVS)	2011-2012	43,900%
CEA Industries (CEAD)	2011-2012	3,266.67%
Par Pacific (PARR)	2011-2012	1,899.93%
Nova Lifestyle I (NVFY)	2011-2012	1,266.67%
Actinium Pharmaceuticals (ATNM)	2011-2012	1,263.64%
Xpel (XPEL)	2011-2012	1,177.78%
Kazia Therapeutics Ltd ADR (KZIA)	2011-2012	1,078.12%
Natural Health Trend (NHTC)	2011-2012	1,023.24%
Versus Systems Inc. (VS)	2011-2012	940%
Heritage Global (HGBL)	2011-2012	816.67%
Patrick Industries (PATK)	2011-2012	674.16%
Barfresh Food (BRFH)	2011-2012	670%
Where Food Comes From (WFCF)	2011-2012	556.27%
Coda Octopus (CODA)	2011-2012	514.62%
Mawson Infrastructure (MIGI)	2011-2012	500%
Lifevantage (LFVN)	2011-2012	461.52%
Regeneron Pharmaceuticals (REGN)	2011-2012	423.31%
Usio (USIO)	2011-2012	420%
Security National Financial (SNFCA)	2011-2012	379.18%
Aemetis (AMTX)	2011-2012	366.67%
Netcapital (NCPL)	2011-2012	366.67%
OLB (OLB)	2011-2012	326.83%
Turtle Beach (TBCH)	2011-2012	317.58%
Consumer Portfolio Services (CPSS)	2011-2012	315.5%
Accelerate Diagnostics (AXDX)	2011-2012	303.02%