GE Aerospace (GE) had the highest return last month by a mega-cap US stock, returning 21.2%.

ASSET	MONTH	% RETURN
GE Aerospace (GE)	January 2025	21.23%
Alibaba (BABA)	January 2025	17.12%
Facebook (META)	January 2025	16.87%
International Business Machines (IBM)	January 2025	15.27%
Thermo Fisher Scientific (TMO)	January 2025	15.14%
Abbott Laboratories (ABT)	January 2025	13.12%
SAP SE ADR (SAP)	January 2025	12.52%
Wells Fargo (WFC)	January 2025	11.8%
JPMorgan Chase (JPM)	January 2025	11.52%
Morgan Stanley (MS)	January 2025	10.15%
Intuitive Surgical (ISRG)	January 2025	9.73%
Accenture (ACN)	January 2025	9.48%
Walmart (WMT)	January 2025	9.09%
Netflix (NFLX)	January 2025	9.07%
Visa Inc Class A (V)	January 2025	7.56%
Novartis AG ADR (NVS)	January 2025	7.39%
Philip Morris International (PM)	January 2025	7.3%
AstraZeneca PLC ADR (AZN)	January 2025	7.2%
Costco Wholesale (COST)	January 2025	7.09%
Amazon (AMZN)	January 2025	7.05%
Alphabet Inc Class A (GOOGL)	January 2025	7.01%
UnitedHealth (UNH)	January 2025	6.79%
Taiwan Semiconductor Manufacturing (TSM)	January 2025	6.25%
American Express (AXP)	January 2025	6.07%
LIN TV (LIN)	January 2025	6.03%

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