would this be a winning day, considering commissions? how much would commissions generally be when trading 400 shares in and 400 shares out? im playing with the demo 'instaquote' (i love it by the way) software this week, but today it says my commissions would be $880 for todays trading!? that sounds a bit steep. i dont think it calculates it correctly. my profit says $275 before commissions tho. would this be a winning day for you with the commissions that you pay? or would it be a losing day after commissions? 20 trades with 400 shares and a few with 200 shares.