NVIDIA (NVDA) had the highest return between 2014 and 2016 by a US stock in the S&P 500 (GSPC), returning 600.4%.

ASSET	YEARS	% RETURN
NVIDIA (NVDA)	2014-2016	600.43%
Broadcom (AVGO)	2014-2016	249.09%
Electronic Arts (EA)	2014-2016	243.93%
Caesars Entertainment (CZR)	2014-2016	232.35%
Texas Pacific Land Trust (TPL)	2014-2016	200.2%
Advanced Micro Devices (AMD)	2014-2016	194.55%
Take-Two Interactive Software (TTWO)	2014-2016	185.41%
Edwards Lifesciences (EW)	2014-2016	185.32%
Skyworks Solutions (SWKS)	2014-2016	172.54%
Southwest Airlines (LUV)	2014-2016	170.62%
Ulta Beauty (ULTA)	2014-2016	164.98%
Paycom Soft (PAYC)	2014-2016	154.13%
Monolithic Power Systems (MPWR)	2014-2016	146.26%
Domino's Pizza Inc Common Stock (DPZ)	2014-2016	136.76%
Netflix (NFLX)	2014-2016	136.25%
Martin Marietta Materials (MLM)	2014-2016	129.83%
CDW (CDW)	2014-2016	128.68%
MarketAxess (MKTX)	2014-2016	127.33%
Frank's International (FI)	2014-2016	125.26%
UnitedHealth (UNH)	2014-2016	124.54%
Constellation Brands Inc Class A (STZ)	2014-2016	122.73%
IDEXX Laboratories (IDXX)	2014-2016	121.31%
Palo Alto Networks (PANW)	2014-2016	120.51%
NXP Semiconductors (NXPI)	2014-2016	119.26%
O’Reilly Automotive (ORLY)	2014-2016	116.8%