Applovin (APP) had the highest return in May 2021 by a US stock with a market cap of $20B+, returning 27%.

ASSET	MONTH	% RETURN
Applovin (APP)	May 2021	26.96%
Ford Motor (F)	May 2021	25.69%
Gold Fields Ltd ADR (GFI)	May 2021	25.36%
Roblox (RBLX)	May 2021	25.26%
Ambev SA ADR (ABEV)	May 2021	24.46%
Nucor (NUE)	May 2021	23.35%
Centrais Elétricas Brasileiras SA - Eletrobrás (EBR.B)	May 2021	21.98%
Centrais Electricas Brasileiras (EBR)	May 2021	20.52%
Petroleo Brasileiro Petrobras SA ADR (PBR)	May 2021	20.26%
Baker Hughes (BKR)	May 2021	19.4%
Petróleo Brasileiro SA - Petrobras (PBR.A)	May 2021	18.64%
SoFi Technologies (SOFI)	May 2021	18.53%
Blue Owl Capital (OWL)	May 2021	17.74%
Cameco (CCJ)	May 2021	17.33%
Li Auto (LI)	May 2021	16.15%
Newmont Goldcorp (NEM)	May 2021	15.75%
Expand Energy (EXE)	May 2021	15.65%
Stellantis (STLA)	May 2021	15.53%
Energy Transfer (ET)	May 2021	14.93%
Teck Resources Ltd Class B (TECK)	May 2021	14.77%
Credicorp (BAP)	May 2021	14.57%
Wheaton Precious Metals (WPM)	May 2021	14.38%
Banco Bradesco SA ADR (BBD)	May 2021	14.01%
Schlumberger (SLB)	May 2021	13.8%
Canadian Natural Resources (CNQ)	May 2021	13.77%