Sandisk (SNDK) had the highest return last month by a large-cap US stock, returning 135.8%.

ASSET	MONTH	% RETURN
Sandisk (SNDK)	January 2026	135.83%
Bloom Energy (BE)	January 2026	67.13%
Ast Spacemobile (ASTS)	January 2026	49.6%
Moderna (MRNA)	January 2026	47.74%
Seagate Technology (STX)	January 2026	44.59%
MKS Instruments (MKSI)	January 2026	43.07%
Western Digital (WDC)	January 2026	41.21%
Micron Technology (MU)	January 2026	40.58%
Karman (KRMN)	January 2026	39.84%
IREN (IREN)	January 2026	37.76%
FTAI Aviation (FTAI)	January 2026	37.51%
SK Telecom Co Ltd ADR (SKM)	January 2026	37.51%
Entegris (ENTG)	January 2026	37.15%
Nova (NVMI)	January 2026	36.26%
Modine Manufacturing (MOD)	January 2026	35.55%
Kratos Defense & Security Solutions (KTOS)	January 2026	34.57%
Applied Digital (APLD)	January 2026	33.86%
Nextracker Inc Class A Common Stock (NXT)	January 2026	33.01%
Cameco (CCJ)	January 2026	32.68%
Bilibili (BILI)	January 2026	31.4%
Lam Research (LRCX)	January 2026	31.27%
Lockheed Martin (LMT)	January 2026	31.24%
Southern Copper (SCCO)	January 2026	29.77%
United Microelectronics (UMC)	January 2026	29.68%
Petroleo Brasileiro Petrobras SA ADR (PBR)	January 2026	29.12%

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