Any ideas?

I have not done one before, but some stock gurus believe that you can have 100% in 6 months, so if you were to invest in the stockmarket by picking the right shares.

So it means that if you were to compound it , you will have N4 million in 1 year less your N1 million you will have turn N1 million into N3million.

I also heared that some shares can lose value up to 50% in a year in the Nigerian stock market or you may not even be able to sell.

So you have to weigh the Risk/Reward. You may even loose all your money in some scheme but that is the risk you may have to take if you want such a return.

Good luck