Can't put all your eggs in one basket.
Indeed, proper/careful portfolio egg distribution is vital to making steady profits... good advice.
This is what makes the index's so attractive, besides just dividends on ICN.
... Someone asked early on...
"What would stop peeps from just copying the moves the index makes instead of buying in?"
Nothing, and I hope they do.
Why?
That would mean they bought in after our index did, driving our portfolios up all the faster.

To throw them off even further, they have no way of knowing if the index is shorting on margin or going long or at what time. The formulae/algo for that is kept secret. They will likely get butt-hurt trying to mimic the index fund. Performance fund is different however, because it's an ico fund.
The Performance Fund is the best option for longer-term holders IMO because the blockchain revolution has barely begun; therefore, there is likely to be thousands of successful ico's within the next couple years alone. The market is "Wide open", with endless gaps and niches to fill.
If Fontas or someone from Whaleclub doesn't create a fund on the Iconomi platform within a month of it's launch, I would like to personally create such an index.