Put the absolute minimum in your account. Go to your bank and ask them to make a bank guarantee in favor of your broker of FCM for the amount needed to cover the necesarry additional margin. Specify that the bank can only pay for the amounts that YOU lose in YOUR account. If the broker or FCM goes broke your losses will be limited. Losses from other traders causing companies to close down will not be paid by you. At least not if they exceed the absolute minimum in your account that you will lose anyway. You should do enough volume of course, because trading a few contracts a day will not impress your broker. Or a few traders should organize a global demand to put pressure on brokers or FCM's by offering big volumes. Let the competition play!!!