I do not recommend to invest your Bitcoins or a part of it in some hyip sites,where is promised to double your Bitcoins in a couple of hours or in a short period of time.You can do some trading if you have experience,but I think it is better to store your Bitcoins in your wallet,that is the best investment.You will make some good profit on your Bitcoins in the future,when Bitcoins value will be doubled,because as we can see Bitcoins price gets higher and higher year by year.
Investing in some HYIP or MLM scheme is a total loss of all your invested money because none of them are bound to stay forever and will soon run away with your money within some months. Its better to trade bitcoins and earn from trading. You can always store bitcoins and sell them when prices rise and buy when prices fall. Investing in gold and real estate and land are also great options. Last but not least a cool mining rig where electricity is cheap is a money bank.