I'm currently trading at one of the larger sell side firms with the firm's capital, and also on the side in personal accounts through a discount online brokerage. If I were to trade with a prop firm that requires you to bring your own capital, what kinds of commissions should I expect? How much can these rates fluctuate based on how often or how little you trade? I imagine the commish schedules are on a cents per share basis? Are the bottom line commissions anywhere near what you'd expect from a Scottrade or an E Trade or is that just a ridiculous pipe dream and they are much much higher? Thanks in advance for any help.