Specifies how to round the result of the Quantity formula
Any formula specifying a rounding interval (step value)
If not specified, the default rounding interval is 1 (whole shares).
QtyRound: 0 means don't do any rounding (include all available decimal places).
QtyRound: 10 means round to the next lower ten-share interval.
QtyRound: 0.1 means round to the next lower tenth-of-a-share interval.
When rounded, Quantity is always rounded down (truncated), e.g. 12.99 will be rounded to 12 if QtyRound: 1 is in use.
Quantity is rounded down by default to avoid the possibility of share rounding pushing a position value slightly over the MaxInvested threshold.
If you want to round up, or round nearest, specify QtyRound: 0 and use the Round function in your Quantity formula while keeping QtyType as Shares (the default).