The difference between them and you, is this what you want to know? Like, could I just go surf in the morning, nap during the day and simply do my delta hedging at the close and profit from it? The answer is most likely not. Why? Transaction fees (institutional rate vs retail). This is the only difference between them and you, period. I call this comish arbitrage. Guys in banks think they are genius doing this or arbing some futs versus the cash. Their profit on average is smaller than the comish we pay as retail so there is no way we can do it and there is no way they can do it at home.Quote from mizhael:
any thoughts?
for example, crude oil traders are selling vol on crude oil...