Tried to decide where to put this question; in broker? trading? Just decided to try here. I have an IB account (used to have two open) and want to trade a system that uses intermediate and short term emini (ES) trades at the same time. So I could be long ES for the intermediate yet hedge in the short term with a short ES but don't want the short to cancel out the long. My plan was to use one account for the intermediate trades and the 2nd for the short term but with the fee structures now I would like to somehow do this in just the one account. I guess I could do some sort of math to decide how to use SPY as an intermediate equivalent but I'm sure it won't be as precise as using the same instrument (ES) for both time frames. Any ideas from anyone doing similar trading? Thanks.