Palantir Technologies (PLTR) had the highest return in August 2024 by a mega-cap US stock, returning 16.5%.

ASSET	MONTH	% RETURN
Palantir Technologies (PLTR)	August 2024	16.51%
Eli Lilly and (LLY)	August 2024	15.32%
Netflix (NFLX)	August 2024	11.46%
AstraZeneca (AZN)	August 2024	10.68%
T-Mobile US (TMUS)	August 2024	9.62%
Costco Wholesale (COST)	August 2024	9.02%
Berkshire Hathaway (BRK.A)	August 2024	8.39%
Berkshire Hathaway (BRK.B)	August 2024	8.24%
Royal Bank of Canada (RY)	August 2024	8.19%
McDonald’s (MCD)	August 2024	8.19%
Coca-Cola (KO)	August 2024	8.16%
Novartis AG ADR (NVS)	August 2024	7.94%
Procter & Gamble (PG)	August 2024	6.63%
Philip Morris International (PM)	August 2024	6.49%
Alibaba (BABA)	August 2024	5.8%
Novo Nordisk A-S (NVO)	August 2024	5.78%
International Business Machines (IBM)	August 2024	5.75%
Johnson & Johnson (JNJ)	August 2024	5.45%
JPMorgan Chase (JPM)	August 2024	5.44%
Raytheon Technologies (RTX)	August 2024	5.33%
SAP SE ADR (SAP)	August 2024	5.28%
Taiwan Semiconductor Manufacturing (TSM)	August 2024	5.03%
LIN TV (LIN)	August 2024	4.86%
HSBC Holdings PLC ADR (HSBC)	August 2024	4.79%
Merck (MRK)	August 2024	4.7%

Mega-cap stocks are treated as having a market cap of $200B+.