Palantir Technologies Inc Class A Common Stock (PLTR) has had the highest return this month by a mega-cap US stock, returning 11.8%.

ASSET	MONTH	% RETURN
Palantir Technologies Inc Class A Common Stock (PLTR)	April 2025	11.79%
Walmart (WMT)	April 2025	6.49%
Costco Wholesale (COST)	April 2025	5.53%
Netflix (NFLX)	April 2025	4.91%
Philip Morris International (PM)	April 2025	2.97%
Broadcom (AVGO)	April 2025	2.78%
Eli Lilly and (LLY)	April 2025	2.61%
Coca-Cola (KO)	April 2025	1.84%
Toyota Motor Corporation ADR (TM)	April 2025	0.33%
Procter & Gamble (PG)	April 2025	0.04%
McDonald’s (MCD)	April 2025	-0.57%
Abbott Laboratories (ABT)	April 2025	-0.67%
Novartis AG ADR (NVS)	April 2025	-1.44%
T-Mobile US (TMUS)	April 2025	-1.47%
Alphabet Inc Class A (GOOGL)	April 2025	-1.6%
Microsoft (MSFT)	April 2025	-1.83%
Johnson & Johnson (JNJ)	April 2025	-2.03%
LIN TV (LIN)	April 2025	-2.14%
Berkshire Hathaway (BRK.A)	April 2025	-2.41%
Home Depot (HD)	April 2025	-2.49%
Berkshire Hathaway (BRK.B)	April 2025	-2.57%
ASML Holding NV ADR (ASML)	April 2025	-3.67%
International Business Machines (IBM)	April 2025	-3.72%
JPMorgan Chase (JPM)	April 2025	-3.8%
SAP SE ADR (SAP)	April 2025	-4.12%

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