AnaptysBio (ANAB) had the highest return in October 2020 by a small-cap US stock, returning 102.5%.

ASSET	MONTH	% RETURN
AnaptysBio (ANAB)	October 2020	102.47%
Cartesian Therapeutics (RNAC)	October 2020	89.74%
Replimune (REPL)	October 2020	80.76%
Viridian Therapeutics (VRDN)	October 2020	67.95%
Build-A-Bear Workshop (BBW)	October 2020	67.21%
X Financial Class A (XYF)	October 2020	58.82%
Bitfarms (BITF)	October 2020	53.33%
Meta Financial (CASH)	October 2020	52.89%
Betterware de MÃ©xico, SAPI de CV (BWMX)	October 2020	49.23%
Fubotv (FUBO)	October 2020	49.06%
MediaAlpha (MAX)	October 2020	47.09%
Live Oak Bancshares (LOB)	October 2020	46.89%
Community Health Systems (CYH)	October 2020	46.48%
Stagwell (STGW)	October 2020	45.34%
JinkoSolar (JKS)	October 2020	44.02%
Keros Therapeutics (KROS)	October 2020	43.37%
Red Cat (RCAT)	October 2020	42.94%
IDT (IDT)	October 2020	41.61%
Beam Therapeutics (BEAM)	October 2020	40.33%
Akso Health Group ADR (AHG)	October 2020	40.27%
Criteo (CRTO)	October 2020	39.51%
Ryerson (RYI)	October 2020	38.8%
Lsb Industries (LXU)	October 2020	36.81%
Calumet Specialty Products Partners (CLMT)	October 2020	35.16%
Praxis Precision Medicines (PRAX)	October 2020	34.93%

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