Precigen (PGEN) had the highest return on March 31 by a mid-cap US stock, returning 17.6%.

ASSET	DATE	% RETURN
Precigen (PGEN)	3/31/2026	17.63%
Firefly Aerospace Inc Common Stock (FLY)	3/31/2026	15.38%
Aura Minerals Inc Common Shares (AUGO)	3/31/2026	11.51%
Applied Digital (APLD)	3/31/2026	11.48%
Praxis Precision Medicines (PRAX)	3/31/2026	11.41%
BillionToOne, Inc Class A Common Stock (BLLN)	3/31/2026	10.98%
Hims Hers Health (HIMS)	3/31/2026	10.54%
Rhythm Pharmaceuticals (RYTM)	3/31/2026	10.1%
Kodiak Sciences (KOD)	3/31/2026	9.63%
BBVA Banco Frances SA ADR (BBAR)	3/31/2026	9.55%
Perimeter Solutions (PRM)	3/31/2026	9.51%
Ultra Clean (UCTT)	3/31/2026	9.41%
Bob's Discount Furniture (BOBS)	3/31/2026	9.4%
Spyre Therapeutics (SYRE)	3/31/2026	8.99%
VSE (VSEC)	3/31/2026	8.94%
SSR Mining (SSRM)	3/31/2026	8.89%
Vicor (VICR)	3/31/2026	8.83%
Perrigo (PRGO)	3/31/2026	8.81%
Abivax SA American Depositary Shares (ABVX)	3/31/2026	8.75%
Sphere Entertainment (SPHR)	3/31/2026	8.7%
Banco Macro SA B ADR (BMA)	3/31/2026	8.56%
Regencell Bioscience (RGC)	3/31/2026	8.44%
Figure Technology Solutions, Inc Class A Common Stock (FIGR)	3/31/2026	8.29%
Aya Gold & Silver Inc Common Shares (AYA)	3/31/2026	8.28%
Pony AI Inc American Depositary Shares (PONY)	3/31/2026	8.26%

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