How about a commission scale that would reduce commission on a sliding scale, sort of like the 1/2 cent per share charge on share amounts over 500 on a trade. What I'm proposing is that IB give a customer that 1/2 cent rate on all subsequent shares for the same symbol on a given day. This would be great for scalpers or index traders who trade the same symbol repeatedly throughout the day. Example, trade 1000 qqq, pay $7.50, next trade and each following trade on that day, trade 1000 qqq, pay $5.00. How 'bout it?
At the expense of those who trade just a little of each stock during the day. The money has to be made up somewhere. It's the same argument as the $25 cap on a single order - subsidising some orders at the expense of others.
I'm sure they well take that into consideration since you have no idea about there cost structure and throwing out a numbers that lower revenues doesn't make much sense, especially when you have some of the lowest prices around. Questions about service or execution platforms work, but I won't touch the pricing issue, they aren't a public company so they don't have to disclose that info (If you do have an account with them or request it they will send a financial disclosure information they send out quarterly with balance sheet info), but you won't find out there cost per trade, and how viable such a proposal is, and I'm sure that they'll take a random posters suggestion though.
And I want the ability to implement a do-over order. Where you can just cancel a trade a day that you don't want. Hence the name Do-over Order. I'm sure you'd increase you customer base by millions.
Don't expect a cap on trade fees in the near term. It was discussed in the past but subsidizing large trades at the expense of the bread and butter doesn't make sense.