Coeur Mining (CDE) had the highest return between February 1, 2011 and March 31, 2011 by a large-cap US stock, returning 48%.

ASSET	DATE	% RETURN
Coeur Mining (CDE)	2/1/2011 - 3/31/2011	48%
Jazz Pharmaceuticals (JAZZ)	2/1/2011 - 3/31/2011	38.9%
Wheaton Precious Metals (WPM)	2/1/2011 - 3/31/2011	37.85%
MasTec (MTZ)	2/1/2011 - 3/31/2011	35.68%
Harmony Gold Mining (HMY)	2/1/2011 - 3/31/2011	35.68%
Generac (GNRC)	2/1/2011 - 3/31/2011	35.09%
Regeneron Pharmaceuticals (REGN)	2/1/2011 - 3/31/2011	33.39%
Ensign (ENSG)	2/1/2011 - 3/31/2011	31.42%
Franco-Nevada (FNV)	2/1/2011 - 3/31/2011	30.72%
Exelixis (EXEL)	2/1/2011 - 3/31/2011	30.68%
Sterling Infrastructure (STRL)	2/1/2011 - 3/31/2011	29.95%
Molina Healthcare (MOH)	2/1/2011 - 3/31/2011	29.83%
Ulta Beauty (ULTA)	2/1/2011 - 3/31/2011	29.73%
Lululemon Athletica (LULU)	2/1/2011 - 3/31/2011	27.98%
MicroStrategy (MSTR)	2/1/2011 - 3/31/2011	26.63%
Service Corporation International (SCI)	2/1/2011 - 3/31/2011	26.54%
Skydance (SKYD)	2/1/2011 - 3/31/2011	25.91%
Cheniere Energy (LNG)	2/1/2011 - 3/31/2011	24.47%
Westinghouse Air Brake Technologies (WAB)	2/1/2011 - 3/31/2011	24.41%
Williams-Sonoma (WSM)	2/1/2011 - 3/31/2011	24.35%
T-Mobile US (TMUS)	2/1/2011 - 3/31/2011	24.16%
Nordson (NDSN)	2/1/2011 - 3/31/2011	23.93%
Chipotle Mexican Grill (CMG)	2/1/2011 - 3/31/2011	23.84%
HF Sinclair (DINO)	2/1/2011 - 3/31/2011	23.75%
Coca-Cola Consolidated (COKE)	2/1/2011 - 3/31/2011	23.29%

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