Apologies. What I am referring is some of the issues of the past. It has been a number of years but IIRC it was a NASDAQ data feed that cost a good chunk extra

Apologies. What I am referring is some of the issues of the past. It has been a number of years but IIRC it was a NASDAQ data feed that cost a good chunk extra but gave you a time advantage. Thats what I am referring to, or the fact that at that same time certain exchanges were catering order types for their big clients and leaving those unpublished (also illegal).