DigitalOcean (DOCN) had the highest return in March 2026 by a large-cap US stock, returning 56.6%.

ASSET	MONTH	% RETURN
DigitalOcean (DOCN)	March 2026	56.62%
LyondellBasell Industries (LYB)	March 2026	41.23%
Sasol (SSL)	March 2026	38.76%
Tower Semiconductor (TSEM)	March 2026	38.03%
Dow (DOW)	March 2026	35.67%
APA (APA)	March 2026	30.5%
Equinor ASA ADR (EQNR)	March 2026	29.93%
YPF Sociedad Anonima (YPF)	March 2026	28.82%
Marvell Technology (MRVL)	March 2026	24.39%
Unity Software (U)	March 2026	24.31%
Cloudflare (NET)	March 2026	23.08%
Arm Holdings plc American Depositary Shares (ARM)	March 2026	22.67%
Freedom (FRHC)	March 2026	22.39%
HF Sinclair (DINO)	March 2026	22.07%
Ecopetrol SA ADR (EC)	March 2026	21.87%
Madrigal Pharmaceuticals (MDGL)	March 2026	21.67%
Petroleo Brasileiro Petrobras SA ADR (PBR)	March 2026	21.35%
BUUU (BUUU)	March 2026	21.34%
CF Industries (CF)	March 2026	20.67%
Eni SpA ADR (E)	March 2026	20.06%
Nextpower (NXT)	March 2026	20.01%
Marathon Petroleum (MPC)	March 2026	19.74%
BP PLC ADR (BP)	March 2026	19.29%
Akamai Technologies (AKAM)	March 2026	18.51%
Summit Therapeutics (SMMT)	March 2026	18.5%

Large-cap stocks are treated as having a market cap of $10B+.