Hasbro (HAS) had the highest return on October 17, 2011 by a US stock in the S&P 500 (GSPC), returning 4.3%.

ASSET	DATE	% RETURN
Hasbro (HAS)	10/17/2011	4.29%
Contura Energy (CTRA)	10/17/2011	1.73%
Lowe's Companies (LOW)	10/17/2011	1.56%
American Water Works (AWK)	10/17/2011	1.48%
Goldman Sachs (GS)	10/17/2011	1.46%
Duke Energy (DUK)	10/17/2011	1.31%
Tractor Supply (TSCO)	10/17/2011	1.23%
Netflix (NFLX)	10/17/2011	1.23%
Walgreens Boots Alliance (WBA)	10/17/2011	1.01%
Regeneron Pharmaceuticals (REGN)	10/17/2011	0.98%
Costco Wholesale (COST)	10/17/2011	0.97%
McCormick (MKC)	10/17/2011	0.93%
CenterPoint Energy (CNP)	10/17/2011	0.89%
Bristol-Myers Squibb (BMY)	10/17/2011	0.87%
Northern Trust (NTRS)	10/17/2011	0.87%
Wynn Resorts (WYNN)	10/17/2011	0.86%
Charter Communications (CHTR)	10/17/2011	0.82%
Consolidated Edison (ED)	10/17/2011	0.73%
Dollar Tree (DLTR)	10/17/2011	0.71%
Public Service Enterprise (PEG)	10/17/2011	0.64%
NiSource (NI)	10/17/2011	0.64%
Transdigm (TDG)	10/17/2011	0.63%
EQT (EQT)	10/17/2011	0.6%
Caesars Entertainment (CZR)	10/17/2011	0.59%
Cboe Global Markets (CBOE)	10/17/2011	0.59%