NXP Semiconductors (NXPI) had the lowest return in July 2011 by a US stock in the S&P 500 (GSPC), returning -26.6%.

ASSET	MONTH	% RETURN
NXP Semiconductors (NXPI)	July 2011	-26.58%
Fortinet (FTNT)	July 2011	-25.1%
Akamai Technologies (AKAM)	July 2011	-22.79%
Interpublic Group of Companies (IPG)	July 2011	-21.33%
United Airlines (UAL)	July 2011	-20.53%
HCA (HCA)	July 2011	-19.49%
Royal Caribbean Cruises (RCL)	July 2011	-19.14%
Avery Dennison (AVY)	July 2011	-18.2%
Edwards Lifesciences (EW)	July 2011	-18.11%
Agilent Technologies (A)	July 2011	-17.7%
Trane Technologies (TT)	July 2011	-17.7%
ON Semiconductor (ON)	July 2011	-17.63%
Rockwell Automation (ROK)	July 2011	-17.44%
Molina Healthcare (MOH)	July 2011	-16.79%
PACCAR (PCAR)	July 2011	-16.45%
F5 Networks (FFIV)	July 2011	-15.65%
Waste Management (WM)	July 2011	-15.26%
Brown & Brown (BRO)	July 2011	-15%
Delta Air Lines (DAL)	July 2011	-14.61%
Elevance Health (ELV)	July 2011	-14.49%
Lennox International (LII)	July 2011	-14.3%
Seagate Technology (STX)	July 2011	-14.15%
Smurfit WestRock (SW)	July 2011	-14.11%
Mohawk Industries (MHK)	July 2011	-13.67%
NVIDIA (NVDA)	July 2011	-13.25%