As Stanley Kroll puts it, "One of the reasons underlying this excessive preoccupation with the fear of losing is that the speculator often overtrades, both in terms of the size of the position as well as the turnover activity of the account. lt is essential that the trader control and overcome these urge to overtrade or over position. My general rule is to utilize a maxirnurn of one-third (for futures and currencies) or one-half (for securities) of the The moral of the story, don't overtrade and trade for the sake,and when some broker asks you to trade 1,000 contracts per month to get discount, run... Eurex is the biggest derivatives exchange in the world and their model is to have clearing charges that are uniform across all market participants, not the discriminatory practices some exchanges practice. So Eures is the benchmark to be modelled on.