Amerant Bancorp (AMTB) had the best month in 2018 by a US stock in October 2018, returning 10,107,000%.

ASSET	MONTH	% RETURN
My Size (MYSZ)	January 2018	190.91%
ZW Data Action Technologies (CNET)	January 2018	190.91%
ProMIS Neurosciences (PMN)	January 2018	212.5%
Quantum Computing (QUBT)	January 2018	650%
Fubotv (FUBO)	January 2018	214.29%
Orange County Bancorp (OBT)	February 2018	100%
Kaival Brands Innovations (KAVL)	February 2018	100%
TNF Pharmaceuticals (TNFA)	February 2018	149.15%
Quantum Computing (QUBT)	February 2018	242.86%
InspireMD (NSPR)	February 2018	891.67%
Creative Medical Technology (CELZ)	March 2018	189.2%
Aemetis (AMTX)	March 2018	198.25%
Arcadia Biosciences (RKDA)	March 2018	426.54%
Avalon GloboCare (ALBT)	March 2018	4,016,566.67%
Bone Biologics (BBLG)	March 2018	199%
Reliance Global (RELI)	April 2018	339.99%
Carisma Therapeutics (CARM)	April 2018	165.71%
Genprex (GNPX)	April 2018	212.93%
Nocera (NCRA)	April 2018	214.29%
Ryvyl (RVYL)	April 2018	342.42%
Blink Charging (BLNK)	May 2018	389.93%
Kaival Brands Innovations (KAVL)	May 2018	5,925.74%
Integrated Media Technology (IMTE)	May 2018	544.56%
Applied Digital (APLD)	May 2018	1,258.33%
Alarum Technologies (ALAR)	May 2018	18,339.56%