Moderna (MRNA) has had the highest return this month by a large-cap US stock, returning 172.5%.

ASSET	MONTH	% RETURN
Moderna (MRNA)	August 2026	172.48%
Atlassian (TEAM)	August 2026	60.34%
Tempus AI, Inc Class A Common Stock (TEM)	August 2026	57.64%
Eldorado Gold (EGO)	August 2026	54.07%
Equinox Gold (EQX)	August 2026	53.1%
IAMGold (IAG)	August 2026	52.44%
Circle Internet (CRCL)	August 2026	52.44%
AngloGold Ashanti (AU)	August 2026	48.77%
Hecla Mining (HL)	August 2026	48.52%
Agnico Eagle Mines (AEM)	August 2026	47.94%
Coeur Mining (CDE)	August 2026	45.45%
MP Materials (MP)	August 2026	44.57%
Gold Fields Ltd ADR (GFI)	August 2026	44.51%
Wheaton Precious Metals (WPM)	August 2026	42.93%
Everpure (P)	August 2026	42.41%
Chime Financial, Inc Class A Common Stock (CHYM)	August 2026	42.09%
Kinross Gold (KGC)	August 2026	40.96%
First Majestic Silver (AG)	August 2026	40.89%
Newmont Goldcorp (NEM)	August 2026	40.82%
Harmony Gold Mining (HMY)	August 2026	40.28%
Palantir Technologies (PLTR)	August 2026	40.09%
Paycom Software (PAYC)	August 2026	38.53%
Lumentum (LITE)	August 2026	36.96%
Unity Software (U)	August 2026	36.24%
Marvell Technology (MRVL)	August 2026	35.78%

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