Increases or decreases an existing position by the specified factor as of the close.
•Increasing a position size will result in the addition position units since the contract/share additions will have a different entry date than any of the existing units.
•Decreasing a position size will remove contracts/shares starting with the last unit on, and working back through the remaining units until enough quantity has been removed.
broker.AdjustPositionOnClose( 1.4 )
would increase a position by 40%, while
broker.AdjustPositionOnClose( .8 )
would decrease the position by 20%.
This function is used by a Risk Manager Block to lighten a position to meet certain risk restrictions. It can be used in other script where instruments have context.