what is the best returning index fund in may 2013

TTT had the highest return in May 2013 by a major index or ETF, returning 23.6%.

ASSET MONTH % RETURN
TTT
May 2013
23.61%
TMV
May 2013
23.07%
TAN
May 2013
21.5%
KOLD
May 2013
19.48%
DRV
May 2013
18.68%
QCLN
May 2013
17.72%
SOXL
May 2013
17.58%
SDP
May 2013
16.62%
BZQ
May 2013
15.63%
TBT
May 2013
15.38%
FAS
May 2013
15.3%
EDZ
May 2013
14.48%
PBW
May 2013
13.75%
SMOG
May 2013
13.29%
EWV
May 2013
13.01%
URTY
May 2013
12.79%
TNA
May 2013
12.66%
SRS
May 2013
12.65%
PBD
May 2013
11.85%
SAA
May 2013
11.66%
UXI
May 2013
11.41%
IAI
May 2013
11%
CQQQ
May 2013
10.93%
TQQQ
May 2013
10.71%
ERX
May 2013
10.67%