Summit Therapeutics (SMMT) had the lowest return in January 2023 by a large-cap US stock, returning -18.2%.

ASSET	MONTH	% RETURN
Summit Therapeutics (SMMT)	January 2023	-18.2%
Northrop Grumman (NOC)	January 2023	-17.78%
Molson Coors Beverage (TAP.A)	January 2023	-14.93%
Texas Pacific Land Trust (TPL)	January 2023	-13.49%
Super Micro Computer (SMCI)	January 2023	-12.94%
Pfizer (PFE)	January 2023	-12.63%
Nextera Energy (NEE)	January 2023	-11.54%
Archer-Daniels-Midland (ADM)	January 2023	-10.67%
McCormick (MKC)	January 2023	-9.75%
Baxter International (BAX)	January 2023	-9.35%
Booz Allen Hamilton (BAH)	January 2023	-9.21%
Genmab A-S (GMAB)	January 2023	-8.93%
Intuitive Surgical (ISRG)	January 2023	-8.87%
Equinor ASA ADR (EQNR)	January 2023	-8.44%
AbbVie (ABBV)	January 2023	-7.95%
RPM International (RPM)	January 2023	-7.84%
Campbell Soup Company Common Stock (CPB)	January 2023	-7.36%
Charles Schwab (SCHW)	January 2023	-7.36%
Johnson & Johnson (JNJ)	January 2023	-7.23%
Logitech International (LOGI)	January 2023	-7.1%
Xylem (XYL)	January 2023	-7.03%
Centene (CNC)	January 2023	-7.02%
Neurocrine Biosciences (NBIX)	January 2023	-6.99%
Expand Energy (EXE)	January 2023	-6.82%
Emerson Electric (EMR)	January 2023	-6.6%

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