Quote from southbeach4me:
It all depends on the volume of contracts you're moving per trade.
The first broker I ever started with a few yrs ago( OpenECry) charged me $4.00 RT (ES) as long as I averaged minimum 150-200 RTs per month. I now do 5-7 times that volume but thru another broker I now use(Dorman) and pay $2.90 RT.
Its all about volume discounting............
Quote from tripleE:
why would anyone trade more than 4 contracts of ES per trade at, say, IB?
I don't get it.
why would you not trade stocks at a fixed commission rate at, say, TDAmeritrade, if you trade a large volume?
The more ES contracts you trade, the more commission you pay at IB.
But if you trade a stock at TDAmeritrade, you pay the same commission if you trade 50,000 shares a trade.