Quote from trading spaces:
I got an email saying i was being charged a cancellation fee. I will stick with es.
Quote from wilburbear:
A cancellation fee.
Because bandwidth costs money.
I've seen back month options flicker all day long - with no trades(!), one exchange improving the price of another, and backing off. Repeat to infinity.
Then public customers send a solitary ping, manually with a mouse click, and are charged a fee.
Quote from FSU:
Cancellation fees come from the exchange to the broker after a certain number of cancels occur. This is done more to try and stop public customer "market making" than for bandwidth reasons. IB is the only firm I know of that charge the customer this fee.
Quote from ben111:
I did some trades with the SPXPM options and recognized that for the same strategy as with SPX options for the SPXPMs is much more margin required (portfolio margin).
Whats the reason for that?
thanks