Targa Resources (TRGP) had the highest return in April 2016 by a US stock in the S&P 500 (GSPC), returning 43.5%.

ASSET	MONTH	% RETURN
Targa Resources (TRGP)	April 2016	43.47%
Freeport-McMoran Copper & Gold (FCX)	April 2016	41.13%
Newmont Goldcorp (NEM)	April 2016	34.5%
Devon Energy (DVN)	April 2016	31.41%
Advanced Micro Devices (AMD)	April 2016	27.24%
ONEOK (OKE)	April 2016	26.41%
Williams Companies (WMB)	April 2016	23.5%
ConocoPhillips (COP)	April 2016	21.33%
Edwards Lifesciences (EW)	April 2016	20.67%
Regions Financial (RF)	April 2016	20.25%
Halliburton (HAL)	April 2016	17.79%
Boston Scientific (BSX)	April 2016	17.09%
ServiceNow (NOW)	April 2016	16.93%
EOG Resources (EOG)	April 2016	16.87%
NRG Energy (NRG)	April 2016	16.57%
Hess (HES)	April 2016	15.97%
Tyler Technologies (TYL)	April 2016	15.45%
APA (APA)	April 2016	15.15%
Caesars Entertainment (CZR)	April 2016	14.9%
Occidental Petroleum (OXY)	April 2016	14.01%
Steel Dynamics (STLD)	April 2016	13.97%
Diamondback Energy (FANG)	April 2016	13.92%
Bristol-Myers Squibb (BMY)	April 2016	13.38%
Baker Hughes (BKR)	April 2016	12.6%
KeyCorp (KEY)	April 2016	12.14%