Palantir Technologies Inc Class A Common Stock (PLTR) had the lowest return in August 2023 by a mega-cap US stock, returning -23%.

ASSET	MONTH	% RETURN
Palantir Technologies Inc Class A Common Stock (PLTR)	August 2023	-23.02%
HSBC Holdings PLC ADR (HSBC)	August 2023	-10.4%
Wells Fargo (WFC)	August 2023	-9.56%
Bank of America (BAC)	August 2023	-9.21%
ASML Holding NV ADR (ASML)	August 2023	-7.16%
Abbott Laboratories (ABT)	August 2023	-7.05%
JPMorgan Chase (JPM)	August 2023	-7.05%
Alibaba (BABA)	August 2023	-6.98%
Facebook (META)	August 2023	-6.82%
Morgan Stanley (MS)	August 2023	-6.63%
Walt Disney (DIS)	August 2023	-6.1%
UnitedHealth (UNH)	August 2023	-6.09%
American Express (AXP)	August 2023	-5.93%
Taiwan Semiconductor Manufacturing (TSM)	August 2023	-5.62%
AstraZeneca PLC ADR (AZN)	August 2023	-4.3%
Apple (AAPL)	August 2023	-4.14%
Novartis AG ADR (NVS)	August 2023	-4%
Philip Morris International (PM)	August 2023	-3.94%
Coca-Cola (KO)	August 2023	-3.64%
McDonald’s (MCD)	August 2023	-3.53%
Tesla (TSLA)	August 2023	-3.07%
Johnson & Johnson (JNJ)	August 2023	-2.11%
AbbVie (ABBV)	August 2023	-2.03%
Microsoft (MSFT)	August 2023	-2.01%
Costco Wholesale (COST)	August 2023	-1.84%

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