Exelixis (EXEL) had the highest return in July 2014 by a large-cap US stock, returning 18.5%.

ASSET	MONTH	% RETURN
Exelixis (EXEL)	July 2014	18.53%
Steel Dynamics (STLD)	July 2014	17.44%
HCA (HCA)	July 2014	15.12%
Baidu (BIDU)	July 2014	14.89%
America Movil SAB de CV ADR (AMX)	July 2014	14.78%
Warner Bros Discovery (WBD)	July 2014	14.61%
Cooper Companies, Inc Common Stock (COO)	July 2014	14.54%
KB Financial (KB)	July 2014	13.39%
Chipotle Mexican Grill (CMG)	July 2014	12.77%
Tenet Healthcare (THC)	July 2014	11.97%
Logitech International (LOGI)	July 2014	11.62%
Universal Health Services (UHS)	July 2014	11.19%
United Airlines (UAL)	July 2014	11.14%
Intuitive Surgical (ISRG)	July 2014	11.1%
Regeneron Pharmaceuticals (REGN)	July 2014	10.76%
VeriSign (VRSN)	July 2014	10.76%
Gilead Sciences (GILD)	July 2014	9.81%
Flutter Entertainment (FLUT)	July 2014	9.64%
Intel (INTC)	July 2014	9.36%
Sony (SONY)	July 2014	9.31%
ICON (ICLR)	July 2014	9.05%
Grupo Financiero Galicia SA ADR (GGAL)	July 2014	8.77%
Nasdaq (NDAQ)	July 2014	8.74%
POSCO (PKX)	July 2014	8.72%
Petroleo Brasileiro Petrobras SA ADR (PBR)	July 2014	8.43%

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