what is the best returning index fund from june 1 2013 to june 15 2013

RTM had the highest return between June 1, 2013 and June 15, 2013 by a major index or ETF, returning 394%.

ASSET DATE % RETURN
RTM
6/1/2013 - 6/15/2013
393.97%
DUST
6/1/2013 - 6/15/2013
15.64%
EDZ
6/1/2013 - 6/15/2013
15.1%
BZQ
6/1/2013 - 6/15/2013
14.32%
FXP
6/1/2013 - 6/15/2013
13.09%
YCL
6/1/2013 - 6/15/2013
12.78%
KOLD
6/1/2013 - 6/15/2013
12.59%
UCO
6/1/2013 - 6/15/2013
11.02%
EEV
6/1/2013 - 6/15/2013
10.11%
YANG
6/1/2013 - 6/15/2013
9.53%
VIXY
6/1/2013 - 6/15/2013
8.43%
YXI
6/1/2013 - 6/15/2013
6.76%
USL
6/1/2013 - 6/15/2013
6.4%
FXY
6/1/2013 - 6/15/2013
6.15%
VIXM
6/1/2013 - 6/15/2013
5.9%
USO
6/1/2013 - 6/15/2013
5.5%
XTL
6/1/2013 - 6/15/2013
5.13%
EUM
6/1/2013 - 6/15/2013
5.03%
BNO
6/1/2013 - 6/15/2013
4.65%
EPOL
6/1/2013 - 6/15/2013
4.5%
UCC
6/1/2013 - 6/15/2013
4.47%
DBO
6/1/2013 - 6/15/2013
4.37%
FXF
6/1/2013 - 6/15/2013
4.37%
ULE
6/1/2013 - 6/15/2013
4.23%
SMN
6/1/2013 - 6/15/2013
4.18%