For those of you who hold a core and trade an over-core position, how do you keep the shares separate for tax benefits? I'm switching my core from scottrade to TDA because I need them to be in the same account as my over-core so I can have a pattern day trader status (if not I wont have enough account value). My plan is to hold my core for at least 1 year so I can get a lower tax rate and trade my over core along the way to try and pick up more shares