Hi everyone! You hear it all the time on this forum: such and such strategy is absolutely out of the question, unless you're a market maker or trading on the floor. Then, it's perfectly fine because, after all, they don't pay nearly as much in commissions. Or, you might hear how market makers often set up extraordinarily complex spreads whereby all 6 Greeks are neutral in order to profit on the bid-ask spread (whopping sum that it is). I'm becoming increasingly skeptical that market makers and floor traders have it so much better than the rest of us. How much exactly do they have to pay for commissions? I know at IB the commission structure seems pretty good: The highest we have to pay is $0.70 per contract and it goes down to as low as $0.15, depending on the volume traded per month. Can the folks on the floor do any better than that? Thanks in advance for the feedback.