Weatherford International (WFRD) had the highest return between 2019 and 2023 by a mid-cap US stock, returning 23,995,550%.

ASSET	YEARS	% RETURN
Weatherford International (WFRD)	2019-2023	23,995,550%
Applied Digital (APLD)	2019-2023	60,620.72%
Centrus Energy (LEU)	2019-2023	3,217.68%
Enphase Energy (ENPH)	2019-2023	2,754%
Axsome Therapeutics (AXSM)	2019-2023	2,732.38%
ELF Beauty (ELF)	2019-2023	1,592.15%
Cytokinetics (CYTK)	2019-2023	1,242.28%
Camtek (CAMT)	2019-2023	959.15%
Riot Blockchain (RIOT)	2019-2023	924.5%
Trump Media & Technology (DJTWW)	2019-2023	843.46%
Sitime (SITM)	2019-2023	839.08%
Chord Energy (CHRD)	2019-2023	792.56%
Catalyst Pharmaceuticals (CPRX)	2019-2023	784.74%
Avis Budget (CAR)	2019-2023	744.59%
Atkore International (ATKR)	2019-2023	721.36%
Dillard's (DDS)	2019-2023	709.61%
Torm PLC Class A (TRMD)	2019-2023	697.2%
Saia (SAIA)	2019-2023	697.05%
BW LPG (BWLP)	2019-2023	670.88%
Boise Cascad Llc (BCC)	2019-2023	655.13%
Axcelis Technologies (ACLS)	2019-2023	641.93%
Griffon (GFF)	2019-2023	636.52%
Green Brick Partners (GRBK)	2019-2023	620.39%
Xenon Pharmaceuticals (XENE)	2019-2023	610.8%
Alphatec (ATEC)	2019-2023	568.58%

Mid-cap stocks are treated as having a market cap between $2B and $10B.