99.9% of all bitcoin investment opportunities end up generating losses for investors and/or are simply scams, ponzi's etc. So even if you are honest, if you are going to spread your investments in a market like this, its like telling your army to disperse in the middle of a minefield. It only guarantees you will step on countless mines.
Besides, there is a good reason why bitcoins should not be invested, I explained them here:
https://bitcointalk.org/index.php?topic=843651.msg9935248#msg9935248Bitcoins themselves
are the investment, you should either sell them if you dont believe they will appreciate, or you should 'let them sleep'. Just like you do with gold and other commodities.