Suppose
If the trades are like this.
1. buy @ 1728. - one lot
2. sell @ 1721 - two lots. ( carrying 1 short and a loss of 7 points)
Assume if the price of such share doesnt fall further then?...
Already we had loss of 7 points and further 1 lot we have short ...
What we have to do in this case... We have to square off on loss
..