Caesars Entertainment (CZR) had the highest return on September 17, 2012 by a US stock in the S&P 500 (GSPC), returning 6.3%.

ASSET	DATE	% RETURN
Caesars Entertainment (CZR)	9/17/2012	6.28%
Gilead Sciences (GILD)	9/17/2012	6.27%
Builders FirstSource (BLDR)	9/17/2012	5.61%
Axon Enterprise (AXON)	9/17/2012	5.09%
Advanced Micro Devices (AMD)	9/17/2012	2.82%
Chipotle Mexican Grill (CMG)	9/17/2012	2.61%
Kraft Heinz (KHC)	9/17/2012	2.5%
Apollo Global Management LLC Class A (APO)	9/17/2012	2.47%
Colgate-Palmolive (CL)	9/17/2012	2.4%
Constellation Brands Inc Class A (STZ)	9/17/2012	2.39%
Centene (CNC)	9/17/2012	2.34%
HCA (HCA)	9/17/2012	2.18%
Intuitive Surgical (ISRG)	9/17/2012	1.95%
Palo Alto Networks (PANW)	9/17/2012	1.78%
Nike (NKE)	9/17/2012	1.71%
Take-Two Interactive Software (TTWO)	9/17/2012	1.64%
Fidelity National Information Services (FIS)	9/17/2012	1.61%
Honeywell International (HON)	9/17/2012	1.56%
Philip Morris International (PM)	9/17/2012	1.49%
CoreSite Realty (COR)	9/17/2012	1.47%
AutoZone (AZO)	9/17/2012	1.46%
Pfizer (PFE)	9/17/2012	1.44%
Abbott Laboratories (ABT)	9/17/2012	1.41%
DaVita HealthCare Partners (DVA)	9/17/2012	1.39%
Verisk Analytics (VRSK)	9/17/2012	1.33%