Earlier quoted context omitted.
You could use it to track the performance and to rebalance your own portfolio. Here's some background on rebalancing: http://www.bogleheads.org/wiki/Rebalancing Btw, I highly recommend Bogleheads.com if you want to learn more about personal portfolio management.
I've been rebalancing religiously every quarter, sector-balanced low-fee mutual funds etc. Lifetime APY so far, 2.5% . S&P500 APY over same time period about 8.3% . Grumble.
I've seen some ridiculous returns on offshore funds. Have a look at some of the Southern African funds (though it does include non-SouthAfrican funds as well):