Permian Resources (PR) had the lowest return in February 2019 by a large-cap US stock, returning -31.5%.

ASSET	MONTH	% RETURN
Permian Resources (PR)	February 2019	-31.55%
Kraft Heinz (KHC)	February 2019	-31.06%
Take-Two Interactive Software (TTWO)	February 2019	-17.21%
XPO Logistics (XPO)	February 2019	-16.87%
Teva Pharma Industries Ltd ADR (TEVA)	February 2019	-16.19%
Medpace (MEDP)	February 2019	-14.67%
Stellantis (STLA)	February 2019	-13.96%
Celsius (CELH)	February 2019	-13.8%
YPF Sociedad Anonima (YPF)	February 2019	-13.41%
Companhia de Saneamento Basico do Estado de Sao Paulo SABESP ADR (SBS)	February 2019	-12.9%
Neurocrine Biosciences (NBIX)	February 2019	-12.62%
Viatris (VTRS)	February 2019	-12.09%
Molson Coors Beverage (TAP.A)	February 2019	-11.7%
Mr Cooper (COOP)	February 2019	-11.25%
Domino's Pizza Inc Common Stock (DPZ)	February 2019	-10.99%
HP (HPQ)	February 2019	-10.97%
Cemex SAB de CV ADR (CX)	February 2019	-10.85%
Cigna (CI)	February 2019	-10.54%
NetEase (NTES)	February 2019	-10.46%
CVS Health (CVS)	February 2019	-10.34%
International Flavors & Fragrances (IFF)	February 2019	-10.16%
UnitedHealth (UNH)	February 2019	-9.78%
Pan American Silver (PAAS)	February 2019	-9.73%
America Movil SAB de CV ADR (AMX)	February 2019	-9.73%
Tapestry (TPR)	February 2019	-9.72%

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