Quote from def:
By default if an order is NX eligible at the NYSE it will use that route.
How would you be able to tell if it was NX'ed or not using IB?Quote from alanm:
In practice, though, it seems that I rarely get an NX execution, even when the stock should be eligible (normal market, quote size > 1x, order < 1099). I'm quite surprised when it does happen. Is there something about a limit of one NX every so many seconds that is applied per firm (not per account) that might explain this, or is there some other reason I might not be getting NX execs?