Skyworks Solutions (SWKS) had the highest return between February 1, 2014 and December 31, 2014 by a US stock in the S&P 500 (GSPC), returning 142.8%.

ASSET	DATE	% RETURN
Skyworks Solutions (SWKS)	2/1/2014 - 12/31/2014	142.83%
Southwest Airlines (LUV)	2/1/2014 - 12/31/2014	103.22%
Palo Alto Networks (PANW)	2/1/2014 - 12/31/2014	100.67%
Edwards Lifesciences (EW)	2/1/2014 - 12/31/2014	95.1%
Broadcom (AVGO)	2/1/2014 - 12/31/2014	86.45%
Kroger (KR)	2/1/2014 - 12/31/2014	80.46%
Electronic Arts (EA)	2/1/2014 - 12/31/2014	78.36%
Centene (CNC)	2/1/2014 - 12/31/2014	70.97%
Super Micro Computer (SMCI)	2/1/2014 - 12/31/2014	69.65%
Best Buy (BBY)	2/1/2014 - 12/31/2014	69.54%
Royal Caribbean Cruises (RCL)	2/1/2014 - 12/31/2014	68.83%
Delta Air Lines (DAL)	2/1/2014 - 12/31/2014	61.86%
Lam Research (LRCX)	2/1/2014 - 12/31/2014	60.35%
Marriott International (MAR)	2/1/2014 - 12/31/2014	59.72%
Monster Beverage (MNST)	2/1/2014 - 12/31/2014	59.08%
Axon Enterprise (AXON)	2/1/2014 - 12/31/2014	58.09%
NXP Semiconductors (NXPI)	2/1/2014 - 12/31/2014	57.1%
Apple (AAPL)	2/1/2014 - 12/31/2014	56.96%
Keurig Dr Pepper (KDP)	2/1/2014 - 12/31/2014	53.83%
Monolithic Power Systems (MPWR)	2/1/2014 - 12/31/2014	53.82%
Applied Materials (AMAT)	2/1/2014 - 12/31/2014	53.04%
Intel (INTC)	2/1/2014 - 12/31/2014	52.82%
Micron Technology (MU)	2/1/2014 - 12/31/2014	52.22%
Vertex Pharmaceuticals (VRTX)	2/1/2014 - 12/31/2014	51.34%
Lowe's Companies (LOW)	2/1/2014 - 12/31/2014	50.68%