BOS Better Online Solutions (BOSC) had the highest return in December 2012 by a US stock, returning 509.5%.

ASSET	MONTH	% RETURN
BOS Better Online Solutions (BOSC)	December 2012	509.46%
Mawson Infrastructure (MIGI)	December 2012	275%
Workhorse (WKHS)	December 2012	118.18%
Daqo New Energy Corp ADR (DQ)	December 2012	118.08%
Western Copper and Gold (WRN)	December 2012	102.86%
Supercom (SPCB)	December 2012	100%
Cryoport (CYRX)	December 2012	87.5%
Stereotaxis (STXS)	December 2012	83.46%
Mr Cooper (COOP)	December 2012	78.72%
AMREP (AXR)	December 2012	77.5%
Zivo Bioscience (ZIVO)	December 2012	75.73%
TG Therapeutics (TGTX)	December 2012	73.33%
ATA Creativity Global (AACG)	December 2012	68.36%
22nd Century (XXII)	December 2012	66.7%
Enveric Biosciences (ENVB)	December 2012	64%
Oncolytics Biotech (ONCY)	December 2012	62.66%
QXO (QXO)	December 2012	60%
Kingsway Financial Services (KFS)	December 2012	53.04%
Actinium Pharmaceuticals (ATNM)	December 2012	50%
Helport AI Limited Ordinary Shares (HPAI)	December 2012	50%
Intrusion (INTZ)	December 2012	48.38%
JinkoSolar (JKS)	December 2012	48.21%
CervoMed (CRVO)	December 2012	47.33%
Paltalk (PALT)	December 2012	47.06%
Lincoln Educational Services (LINC)	December 2012	46.27%