Hi all. When i try to buy more than 500 lot for one particular stock, there is a warning said exceeded the limit. Which means if i want to buy 700 lot, have to buy in 2 times. one 500 lot, one 200 lot. May i ask is it the same for all online trading platform? coz if i buy separately, then i have to pay 2 times broker fee. cannot buy in one time 700 lot?