Thankls for your info,
I did all that that you are saying, that is what the answer was, "$18.08", I have look at others like etrade, tdameritrade, tradestation,interactive brokers,... and they are aprox. $6 round trun, that make me think that I am missing some thing, I am totally new in this, for me the plataform that go futures have it is the best, easy to use and very simple, that is the onley razon for me to want to go with them, I also think that can not be such a big differences in betwen companys, so I think that this other companys are going to add to those $6 some other fees that at the end it is going to be a lots highter, is that posible?
My English it is not that good and some times I do not understand what they mean.
Thank you againg for your advices.