The market open is the beginning of trading on an exchange each day. Market opens vary between exchanges and time differences can be a big factor.
We offer out-of-hours trading to allow Australiantraders to trade US stocks both pre and post-market.
Open orders are orders that have not yet been filled (or executed). The length of time that an order can remain open for, and stipulations involved in filling it, vary between different types of orders. Day orders, for instance, can remain open for a single trading day. Good-‘til-cancelled orders can remain open indefinitely.
An open position is a current position that has not yet been closed.