WM Technology (MAPSW) has had the highest return this quarter by a mid-cap US stock, returning 201.7%.

ASSET	QUARTER	% RETURN
WM Technology (MAPSW)	Q1 2025	201.72%
Oklo (OKLO)	Q1 2025	96%
Akero Therapeutics (AKRO)	Q1 2025	92.59%
H&E Equipment Services (HEES)	Q1 2025	78.63%
Tempus AI, Inc Class A Common Stock (TEM)	Q1 2025	69.34%
Inari Medical (NARI)	Q1 2025	55.18%
Hims Hers Health (HIMS)	Q1 2025	51.42%
Guardant Health (GH)	Q1 2025	50.34%
Polestar Automotive Holding UK PLC Class C-1 ADS (ADW) (PSNYW)	Q1 2025	50.27%
Semrush (SEMR)	Q1 2025	45.33%
MP Materials (MP)	Q1 2025	38.55%
Dana (DAN)	Q1 2025	38.49%
Clover Health Investments (CLOV)	Q1 2025	38.49%
Grupo Aval (AVAL)	Q1 2025	37.7%
Nextracker Inc Class A Common Stock (NXT)	Q1 2025	37.28%
BrightSpring Health Services, Inc Common Stock (BTSG)	Q1 2025	37.21%
Brinker International (EAT)	Q1 2025	36.33%
Alignment Healthcare LLC (ALHC)	Q1 2025	35.95%
Harmony Gold Mining (HMY)	Q1 2025	33.85%
Immunitybio (IBRX)	Q1 2025	33.72%
Option Care Health (OPCH)	Q1 2025	32.7%
Corcept Therapeutics (CORT)	Q1 2025	32.2%
Certara (CERT)	Q1 2025	32%
Life Time (LTH)	Q1 2025	30.88%
Stride (LRN)	Q1 2025	29.1%

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