Booz Allen Hamilton (BAH) had the highest return on May 22, 2013 by a large-cap US stock, returning 4.6%.

ASSET	DATE	% RETURN
Booz Allen Hamilton (BAH)	5/22/2013	4.61%
Bristol-Myers Squibb (BMY)	5/22/2013	3.48%
Zoetis (ZTS)	5/22/2013	3.07%
Centrais Electricas Brasileiras (EBR)	5/22/2013	2.84%
Mondelez International (MDLZ)	5/22/2013	2.68%
Seagate Technology (STX)	5/22/2013	2.48%
Kinross Gold (KGC)	5/22/2013	1.97%
Cognizant Technology Solutions Corp Class A (CTSH)	5/22/2013	1.97%
Nasdaq (NDAQ)	5/22/2013	1.94%
Centrais Elétricas Brasileiras SA - Eletrobrás (EBR.B)	5/22/2013	1.75%
Franco-Nevada (FNV)	5/22/2013	1.63%
Teck Resources Ltd Class B (TECK)	5/22/2013	1.39%
Molina Healthcare (MOH)	5/22/2013	1.33%
US Bancorp (USB)	5/22/2013	1.32%
Hershey (HSY)	5/22/2013	1.08%
Cheniere Energy Partners (CQP)	5/22/2013	1.06%
Tesla (TSLA)	5/22/2013	1.01%
Credicorp (BAP)	5/22/2013	0.99%
Viatris (VTRS)	5/22/2013	0.96%
Regeneron Pharmaceuticals (REGN)	5/22/2013	0.91%
Diamondback Energy (FANG)	5/22/2013	0.9%
United Microelectronics (UMC)	5/22/2013	0.89%
Deckers Outdoor (DECK)	5/22/2013	0.81%
AstraZeneca PLC ADR (AZN)	5/22/2013	0.71%
Ecopetrol SA ADR (EC)	5/22/2013	0.7%

Large-cap stocks are treated as having a market cap of $10B+.