When you get price improvement (on stocks)...

[Option Trader]

Quote from speculatus:

Yes.



Don't forget that TDA may have an ability to cross orders internally (and then print it on a regional exchange).

Not sure that you can look at the tape from a market center (other that NYSE) and see prints (other that cross/late prints) inside of BBO.

With some research, here is TD Ameritrade Institutional's price improvement information (which is excellent).
http://www.tdainstitutional.com/bro...yexecution.html

I get the feeling that one should be happy about price improvement to market centers, and have mixed feelings if you get it from a NYSE specialist.