Quite often ET posts discuss losses per trade. But this is not really what kills accounts; it is the summation of a number of these over time before the next 'big win'. This is akin to cash flow issues in most businesses which lead to bankruptcy. My question is simply "How much have you lost as a % of your account in the past and how much have you planned to accept as a loss in the future in the course of your trading". All businesses have ups and downs - how robust are you to the inevitable downs? This is as much a question about money management and your gearing as anything else.