This is a question that I have been ask quite a lot by many of my friends, I believe the simplest answer to this question is, we should research properly about broker because that’s my biggest fear with higher investment, but if we are satisfied with the company we are working with then we should start with at least 100 to 150 USD, it is very fair amount and for me it is even better through OctaFX broker with their 50% bonus addition!