Quote from DAV:
Implementing rollback for a positive-offset requires significantly more computing resources, as you need to monitor the deep book to see if the order needs to be rolled back.
How on Earth can this be true? NASDAQ/Island offers orders pegged to the same side, the opposite side, and the midpoint of the market, each of which can be modified by a positive or a negative offset. And
THEY ALL ROLLBACK to the buyer's/seller's advantage. And
ALL the monitoring and processing that is required to offer and execute these orders is done by NASDAQ and
not by IB! Thus, it's NASDAQ's computer resources that are being used for all these orders, not IBs!
IB requires routing to NASDAQ/Island for your bastardized versions of their opposite side and midpoint orders, which you call Pegged-to-Market and Pegged-to-Midpoint. Then when the order is placed, rather than letting NASDAQ handle the order according to its own protocolâwhich
always ROLLS BACK the order to the trader's advantageâIB leaves the trader sitting there with a bid above or an ask below the natural NBBO. How IB expends more computer resources in preventing NASDAQ from handling these orders according to NASDAQ's own protocols than IB would expend letting NASDAQ handle them according to those protocols is beyond me and I'm hoping you'll be good enough to enlighten us all.
What IB's scheme does doâirrespective of the computer resources
allegedly involvedâis guarantee that the trader's order executes at an unfavorable price, assuming the market has moved to the trader's advantage. So, one thing we know for sure about these orders in these situations is that IB racks in commissions hand over fist while its customers get screwed buying above and selling below the natural NBBO. I believe this is called "
self-dealing" and is frowned upon by IB's regulators, but
please do correct me if I'm wrong.
That said, once again, please do enlighten us as to how IB would expend MORE resources were it to offer these orders in their native form (plus NASDAQ's pegged to the same side, which you call a Relative Order, and which you synthesize and also don't allow to rollback),
with NASDAQ doing all the work as it continually moves bids and offers to the trader's advantage, than it expends now perverting NASDAQ'S natural protocols and screwing it's customers in the process.
Look forward to your answer...