what is the best returning index fund from january 2016 to june 2016

JNUG had the highest return between January 1, 2016 and June 30, 2016 by a major index or ETF, returning 494.3%.

ASSET DATE % RETURN
JNUG
1/1/2016 - 6/30/2016
494.33%
NUGT
1/1/2016 - 6/30/2016
376.28%
CN
1/1/2016 - 6/30/2016
183.33%
SILJ
1/1/2016 - 6/30/2016
178.04%
GOEX
1/1/2016 - 6/30/2016
139.3%
BRZU
1/1/2016 - 6/30/2016
138.84%
SLVP
1/1/2016 - 6/30/2016
132.83%
SIL
1/1/2016 - 6/30/2016
129.21%
GDXJ
1/1/2016 - 6/30/2016
116.46%
RING
1/1/2016 - 6/30/2016
111.43%
SGDJ
1/1/2016 - 6/30/2016
101.41%
SGDM
1/1/2016 - 6/30/2016
99.69%
UBR
1/1/2016 - 6/30/2016
98.37%
GDX
1/1/2016 - 6/30/2016
96.25%
GBTC
1/1/2016 - 6/30/2016
89.76%
AGQ
1/1/2016 - 6/30/2016
68.56%
XME
1/1/2016 - 6/30/2016
65.75%
EPU
1/1/2016 - 6/30/2016
56.43%
EWZS
1/1/2016 - 6/30/2016
53.67%
FBZ
1/1/2016 - 6/30/2016
52.8%
UPW
1/1/2016 - 6/30/2016
52.38%
EWZ
1/1/2016 - 6/30/2016
49.6%
TMF
1/1/2016 - 6/30/2016
47.52%
BRF
1/1/2016 - 6/30/2016
46.77%
UGL
1/1/2016 - 6/30/2016
46.44%