Quote from trading_time:
I was quoted this in on march 5th
"Our minimum is $5,000. We can offer you a rate of $4.80 a round turn for the electronic contracts and $16.00 a round turn for the open outcry markets."
Kinda high, I think they will work with you like any other broker though if you do volume.
Quote from JMowery1987:
You might want to check out Alaron Trading and some of it's IBs. I have heard some people telling me of extremely low rates they are getting. When I started, I had a very high rate, but others are getting much lower. They send checks out very quickly, and never had an issue and offer multiple platforms.
I went through Greenstreet, but there are others that I have heard of.
I believe almost all the platforms have demo's.