Automatic Data Processing (ADP) had the lowest return on March 13, 2003 by a US stock in the S&P 500 (GSPC), returning -9.7%.

ASSET	DATE	% RETURN
Automatic Data Processing (ADP)	3/13/2003	-9.68%
Johnson Controls International (JCI)	3/13/2003	-7.59%
ConAgra Foods (CAG)	3/13/2003	-7.41%
Baxter International (BAX)	3/13/2003	-6.29%
Cognizant Technology Solutions Corp Class A (CTSH)	3/13/2003	-5.86%
HP (HPQ)	3/13/2003	-4.46%
Intuitive Surgical (ISRG)	3/13/2003	-3.96%
McKesson (MCK)	3/13/2003	-3.54%
Cardinal Health (CAH)	3/13/2003	-3.31%
Autodesk (ADSK)	3/13/2003	-3.09%
Jack Henry & Associates (JKHY)	3/13/2003	-3.09%
Ford Motor (F)	3/13/2003	-2.99%
APA (APA)	3/13/2003	-2.48%
AES (AES)	3/13/2003	-2.44%
EOG Resources (EOG)	3/13/2003	-2.39%
Devon Energy (DVN)	3/13/2003	-2.31%
Motorola Solutions (MSI)	3/13/2003	-1.72%
Dominion Energy (D)	3/13/2003	-1.56%
CenterPoint Energy (CNP)	3/13/2003	-1.45%
Exelon (EXC)	3/13/2003	-1.33%
CoreSite Realty (COR)	3/13/2003	-1.27%
Consolidated Edison (ED)	3/13/2003	-1.25%
Hormel Foods (HRL)	3/13/2003	-1.17%
Valero Energy (VLO)	3/13/2003	-1.1%
Texas Pacific Land Trust (TPL)	3/13/2003	-1.03%