In other words, you really only need to keep enough money in your trading account to cover the margin of the position sizes you normally trade…you don’t need to keep ALL your trading / risk capital in your trading account, any professional trader will tell you this. There is a skill factor involved with trading that varies widely from one trader to the next, given this fact, it makes no sense whatsoever that a new trader with only say 10k to his name should risk 2% of his account on any trade; he has no real trading skill yet and only 10k to his name; with the 2% rule, all he will do is lose money slowly, at best.