Subject: Re: GTR1 leveraged index issue
The gtr1 15 year CAGR is close to the ETF proxy (SSO):

gindex  15yCAGR  ETFProxy  diff
  S5T    13.86     13.78   0.08
 S5TE    12.70     12.29   0.41
S5TL2    22.83     22.29   0.54