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Order Position vs Trade Position
A single margin order can create multiple trade positions depending on how many trades are used to fill the order.
The order position consolidates all the trade positions under a single position so it's easier to see the net result of the margin order.
Order positions can be seen under Trade > Positions page in your account. All order positions begin with "O".
Trade positions can be seen by clicking on the order position's ID and then navigating to the trade positions tab.