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?