Quote from Avid_Consumer:
not really sure to be honest. on a day as thin as today, i might be able to associate one guys ER2 40 lot entry with his 8 5 lot exits, etc. who knows. on thin symbols, it might tell a heck of a lot. or not. no idea
i would imagine big MMs like timber and other wholesale players probably put it to use. from what i know, it doesnt give you the ability to map individual players, but it does give you the ability to model the behavior of everyone clearing thru firm xyz. all that 990N stuff was what first got me wondering how the info might be useful
maybe the members are getting good edge off it?