GeoVax Labs (GOVX) had the highest return between 2017 and 2019 by a US stock, returning 4,390,143.9%.

ASSET	YEARS	% RETURN
GeoVax Labs (GOVX)	2017-2019	4,390,143.9%
KULR Technology (KULR)	2017-2019	2,999,900%
Avalon GloboCare (ALBT)	2017-2019	1,733,432.93%
AquaBounty Technologies (AQB)	2017-2019	602,677.78%
Immatics (IMTX)	2017-2019	207,900%
Alarum Technologies (ALAR)	2017-2019	89,280.53%
Iqstel (IQST)	2017-2019	67,550%
GT Biopharma (GTBP)	2017-2019	35,821.74%
SurgePays (SURG)	2017-2019	4,901.67%
TSS, Inc Common Stock (TSSI)	2017-2019	3,975%
Arrowhead Pharmaceuticals (ARWR)	2017-2019	3,966.03%
Paysign (PAYS)	2017-2019	3,227.87%
Semler Scientific (SMLR)	2017-2019	3,078.81%
Enphase Energy (ENPH)	2017-2019	2,461.76%
Zynex (ZYXI)	2017-2019	2,243.44%
Delcath Systems (DCTH)	2017-2019	2,149.63%
GrabAGun Digital (PEW)	2017-2019	2,090.27%
FingerMotion (FNGR)	2017-2019	1,600%
Thryv (THRY)	2017-2019	1,594.44%
Quantum Computing (QUBT)	2017-2019	1,400%
FitLife Brands, Inc Common Stock (FTLF)	2017-2019	1,384.84%
Axsome Therapeutics (AXSM)	2017-2019	1,376.57%
Aura Minerals Inc Common Shares (AUGO)	2017-2019	1,329.98%
Repro Med Systems (KRMD)	2017-2019	1,193.07%
Intrusion (INTZ)	2017-2019	1,179.66%