IRONBEAM AMP DISCOUNTBROKERS Now this is important: every broker is different in how they handle equity commissions, futures commissions, E-Mini commissions....and more importantly the MARGIN REQUIREMENTS. I had to quit IBKR despite their excellent E-Mini commission rates. Why did I quit ? Their margin requirements were just ridiculous....you needed a $50k account just to trade a few E-Mini contracts. Now how stupid is that ? Great commission rate but you can't take advantage of it......LOL !