But aapl is mainly traded in DP. Ok, let´s see if im doing it right:
the price is 558.02 200 X 558.17 100
Let´s say I wanna buy, so I send a SMART (mid,take,cheap,vps,edge not shure what the last ones do :D) buy order at the range I wanna get the fill, let´s say 558.09?. Right...