Cooper Companies (COO) had the highest return on December 12, 2007 by a US stock in the S&P 500 (GSPC), returning 5.4%.

ASSET	DATE	% RETURN
Cooper Companies (COO)	12/12/2007	5.37%
Steel Dynamics (STLD)	12/12/2007	3%
APA (APA)	12/12/2007	2.9%
Constellation Brands Inc Class A (STZ)	12/12/2007	2.62%
Incyte (INCY)	12/12/2007	2.56%
Archer-Daniels-Midland (ADM)	12/12/2007	1.84%
Live Nation Entertainment (LYV)	12/12/2007	1.71%
AT&T (T)	12/12/2007	1.56%
Williams Companies (WMB)	12/12/2007	1.48%
Broadridge Financial Solutions (BR)	12/12/2007	1.44%
Valero Energy (VLO)	12/12/2007	1.28%
Jacobs Solutions (J)	12/12/2007	1.2%
Nucor (NUE)	12/12/2007	1.2%
Occidental Petroleum (OXY)	12/12/2007	1.17%
Cummins (CMI)	12/12/2007	1.16%
Devon Energy (DVN)	12/12/2007	1.07%
EOG Resources (EOG)	12/12/2007	1.07%
Travelers Companies (TRV)	12/12/2007	0.98%
Cadence Design Systems (CDNS)	12/12/2007	0.93%
Charles River Laboratories (CRL)	12/12/2007	0.9%
Coca-Cola (KO)	12/12/2007	0.85%
Microchip Technology (MCHP)	12/12/2007	0.83%
Warner Bros Discovery (WBD)	12/12/2007	0.81%
Aon (AON)	12/12/2007	0.78%
Genesis Healthcare (GEN)	12/12/2007	0.75%