Quote from nitro:
With every BD I have ever been with, this is typical. I have researched this extensively, meeting with many firms in Chicago. Same answer, there is a ratio of messages to execution they want. The reasons are that they have to run very expensive pipes to the exchange to handle the enormous amount of data. In addition, the number of messages explodes at the exchanges, causing them to have to run a continuous battle of being able to handle more and more messaging. I have even been with firms that ran private lines to an exchange to give it's traders a technological edge or at least to play on a level playing field, and it was horrid. Even money is not enough, you have to know what you are doing too.
It always angered me also when I was told the same thing no matter where I went. The only solution is to run your own private lines into an exchange or colocate at one of these places that aggregates this business, a very expensive option not just because of the pipe and fees, but because it usually also entails custom software. Expenses start to pile up. And then, the BD or clearing firm has to allow you to have direct (naked) access, something that they won't do unless you have a big account.
Trading, and in particular trading on the technological edge, is meant for those that are very well capitalized. In addition, many of these BDs are in the same business you are attempting to take advantage of. They don't want you doing it on their pipes. For 99% of the people on ET, do yourself a favor and stop trying this sort of trading. You are banging your head against a brick wall.