PDD (PDD) had the best month in August 2022 by a large-cap US stock in August 2022, returning 50.2%.

ASSET	MONTH	% RETURN
PDD (PDD)	August 2022	50.17%
YPF Sociedad Anonima (YPF)	August 2022	50%
Alnylam Pharmaceuticals (ALNY)	August 2022	45.73%
Trade Desk (TTD)	August 2022	41.53%
Flutter Entertainment (FLUT)	August 2022	31.31%
Ke Holdings (BEKE)	August 2022	28.95%
First Solar (FSLR)	August 2022	28.88%
Permian Resources (PR)	August 2022	27.6%
Cloudflare (NET)	August 2022	26.12%
Watsco (WSO.B)	August 2022	25.08%
EPAM Systems (EPAM)	August 2022	23.77%
Constellation Energy (CEG)	August 2022	23.75%
Snowflake (SNOW)	August 2022	23.39%
Uber Technologies (UBER)	August 2022	22.75%
Petroleo Brasileiro Petrobras SA ADR (PBR)	August 2022	22.52%
Tencent Music Entertainment (TME)	August 2022	22.25%
Clean Harbors (CLH)	August 2022	21.34%
Futu (FUTU)	August 2022	20.91%
Petróleo Brasileiro SA - Petrobras (PBR.A)	August 2022	20.81%
Super Micro Computer (SMCI)	August 2022	20.74%
Pinterest (PINS)	August 2022	20.38%
Toast (TOST)	August 2022	20.11%
Atlassian (TEAM)	August 2022	19.16%
Cardinal Health (CAH)	August 2022	18.88%
Unum (UNM)	August 2022	18.69%

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