not sure if this is even possible....
highlighted are the pairs of offsetting positions (the different colors indicate the offsetting pairs)
how do i know they're offsetting?
1) one has a"C" in column E, the other is BLANK
2) one is "B", the other is "S" in column D ("bought/sold" indicator)
3) they'll have OPPOSITE SIGNS (one positive, the other negative) in column A ("bought/sold AMT")
4) they'll have the same TAG code in column H
the other challenge is that these offesets won't always be next to each other; one could be in row 2 and the other could be in row 100.