I see that all of the pro firms are registered at different exchanges. What are the advantages of being registered at the Philly compared to the Pacific? Does Chicago offer an advantage over the Pacific? Haven't found this topic covered here. Stock_Lover
I asked the same question, it did not get much replies. http://www.elitetrader.com/vb/showthread.php?s=&threadid=7667&perpage=6&pagenumber=1