KULR Technology (KULR) had the best quarter in 2018 by a US stock in Q3 2018, returning 5,399,900%.

ASSET	QUARTER	% RETURN
KULR Technology (KULR)	Q3 2018	5,399,900%
Alarum Technologies (ALAR)	Q3 2018	5,151,415.15%
Avalon GloboCare (ALBT)	Q1 2018	2,259,275%
Iqstel (IQST)	Q3 2018	689,923.98%
Immatics (IMTX)	Q4 2018	195,900%
Delcath Systems (DCTH)	Q2 2018	32,995.24%
GT Biopharma (GTBP)	Q1 2018	21,529.84%
Alarum Technologies (ALAR)	Q2 2018	18,339.56%
Delcath Systems (DCTH)	Q1 2018	13,927.24%
Foremost Lithium Resource & Technology Ltd Common stock (FMST)	Q3 2018	2,500%
SurgePays (SURG)	Q1 2018	2,005.26%
Quantum Computing (QUBT)	Q1 2018	1,400%
TON Strategy (TONX)	Q1 2018	1,350%
India Globalization Capital (IGC)	Q3 2018	1,216.33%
Bone Biologics (BBLG)	Q3 2018	940%
Osisko Development (ODV)	Q4 2018	900%
Castellum (CTM)	Q4 2018	827.27%
Turtle Beach (TBCH)	Q2 2018	761.02%
PEDEVCO (PED)	Q2 2018	620.63%
MDxHealth SA ADR (MDXH)	Q3 2018	580%
Reliance Global (RELI)	Q4 2018	548.14%
American Resources Corp Class A (AREC)	Q3 2018	532.58%
Tilray (TLRY)	Q3 2018	523.08%
Ryvyl (RVYL)	Q2 2018	506.06%
Q/C Technologies (QCLS)	Q1 2018	497.12%