Focus Universal (FCUV) had the highest return in Q4 2017 by a US stock, returning 896%.

ASSET	QUARTER	% RETURN
Focus Universal (FCUV)	Q4 2017	895.98%
MDxHealth SA ADR (MDXH)	Q4 2017	760%
Riot Blockchain (RIOT)	Q4 2017	490.84%
Avalo Therapeutics (AVTX)	Q4 2017	280.95%
Cronos (CRON)	Q4 2017	270%
Xunlei Ltd Adr (XNET)	Q4 2017	262.12%
VerifyMe (VRME)	Q4 2017	254.8%
Siebert Financial (SIEB)	Q4 2017	254.55%
Lexaria Bioscience (LEXX)	Q4 2017	249.9%
DeFi Technologies (DEFT)	Q4 2017	241.89%
Aurora Cannabis (ACB)	Q4 2017	239.86%
CIMG (IMG)	Q4 2017	233.3%
Gravity (GRVY)	Q4 2017	200.96%
Village Farms International (VFF)	Q4 2017	188.05%
AnaptysBio (ANAB)	Q4 2017	186.71%
argenx NV ADR (ARGX)	Q4 2017	180.75%
Canopy Growth (CGC)	Q4 2017	174.59%
Foremost Lithium Resource & Technology Ltd Common stock (FMST)	Q4 2017	172.34%
India Globalization Capital (IGC)	Q4 2017	170.27%
Gyre Therapeutics (GYRE)	Q4 2017	169.03%
Smart Powerr (CREG)	Q4 2017	164.15%
Zeta Network (ZNB)	Q4 2017	160.61%
InMed Pharmaceuticals (INM)	Q4 2017	160.29%
Valhi (VHI)	Q4 2017	155.72%
Smith Micro Software (SMSI)	Q4 2017	149.12%