My main activity is with ThinkandSwim but their commissions for micro futures are too much. I have spent 1000 USD on commission just in a few weeks, kicking the tires and playing/learning the software. I mainly trade spreads but with micros, I am willing to take a bet/hedge my long positions if need be. Thus I am looking at a smaller IRA account at IB. Do I need to put up 25K or less is adequate in an IRA? TDAmeritrade only lets me trade futures with 25K. I am mostly in options and long market plus a lot of cash at TDAmeritrade.