Fubotv (FUBO) had the highest return in January 2018 by a small-cap US stock or small-cap US stock, returning 214.3%.

ASSET	MONTH	% RETURN
Fubotv (FUBO)	January 2018	214.29%
Eastman Kodak (KODK)	January 2018	160.66%
Iovance Biotherapeutics (IOVA)	January 2018	91.98%
Gyre Therapeutics (GYRE)	January 2018	86.14%
eXp World (EXPI)	January 2018	79.22%
Rocket Pharmaceuticals (RCKT)	January 2018	76.3%
Lightbridge (LTBR)	January 2018	73.55%
Zymeworks Inc Common Stock (ZYME)	January 2018	71.52%
BlueLinx (BXC)	January 2018	65.71%
Novavax (NVAX)	January 2018	64.23%
Zevra Therapeutics (ZVRA)	January 2018	54.32%
InnovAge (INNV)	January 2018	51.81%
Larimar Therapeutics (LRMR)	January 2018	47.42%
World Acceptance (WRLD)	January 2018	45.6%
Denali Therapeutics (DNLI)	January 2018	45.38%
Nektar Therapeutics (NKTR)	January 2018	40.36%
Vericel Corp Ord (VCEL)	January 2018	38.74%
Lineage Cell Therapeutics (LCTX)	January 2018	35.35%
POET Technologies (POET)	January 2018	35.29%
CEA Industries (BNC)	January 2018	35.2%
Ocugen (OCGN)	January 2018	35.12%
Galectin Therapeutics (GALT)	January 2018	34.8%
Geron (GERN)	January 2018	33.15%
Intellia Therapeutics (NTLA)	January 2018	32.82%
MiMedx (MDXG)	January 2018	32.73%

Small-cap stocks are treated as having a market cap between $300M and $2B.