KULR Technology (KULR) had the highest return in 2018 by a micro-cap US stock, returning 5,199,900%.

ASSET	YEAR	% RETURN
KULR Technology (KULR)	2018	5,199,900%
Alarum Technologies (ALAR)	2018	4,829,168.29%
Avalon GloboCare (ALBT)	2018	2,578,025%
Reliance Global (RELI)	2018	6,900%
Kaival Brands Innovations (KAVL)	2018	4,300%
American Resources Corp Class A (AREC)	2018	1,861.17%
Ryvyl (RVYL)	2018	1,109.47%
Nocera (NCRA)	2018	701.6%
Turtle Beach (TBCH)	2018	678.93%
Lixte Biotechnology (LIXT)	2018	467.38%
Nutriband (NTRB)	2018	411.98%
Focus Universal (FCUV)	2018	393.33%
AGM Group Holdings Inc Class A (AGMH)	2018	386.36%
ProQR Therapeutics (PRQR)	2018	385.54%
Flux Power (FLUX)	2018	337.5%
Precision Optics Corporation, Inc Common stock (POCI)	2018	221.43%
Intrusion (INTZ)	2018	217.5%
American Battery Technology Company Common Stock (ABAT)	2018	210%
RF Industries (RFIL)	2018	177.49%
Lifevantage (LFVN)	2018	175.36%
CoreCard (CCRD)	2018	172%
INVO Fertility (IVF)	2018	170.97%
Foremost Lithium Resource & Technology Ltd Common stock (FMST)	2018	166.3%
Serina Therapeutics (SER)	2018	164.6%
Skye Bioscience, Inc Common Stock (SKYE)	2018	163.16%

Micro-cap stocks are treated as having a market cap of <= $300M.