Amerant Bancorp (AMTB) had the best month in 2018 by a US stock in October 2018, returning 10,062,600%.

ASSET	MONTH	% RETURN
Quantum Computing (QUBT)	January 2018	650%
SurgePays (SURG)	January 2018	5,492.11%
ZW Data Action Technologies (CNET)	January 2018	190.91%
ProMIS Neurosciences (PMN)	January 2018	212.5%
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	102.22%
TONX (TONX)	February 2018	127.5%
Quantum Computing (QUBT)	February 2018	242.86%
INVO Fertility (IVF)	March 2018	217.65%
TONX (TONX)	March 2018	222.22%
Arcadia Biosciences (RKDA)	March 2018	426.54%
GT Biopharma (GTBP)	March 2018	50,111.34%
Avalon GloboCare (ALBT)	March 2018	4,016,566.67%
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%
Delcath Systems (DCTH)	May 2018	49,265.08%
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%