P/L / Qty (Column)

The unrealized profit or loss divided by the number of shares or contracts held.

  For futures, positions are not closed intraday (they are netted intraday) and, therefore, p/l is not realized intraday. The average price (and unrealized p/l) represents accrued p/l from the overall net position, not just the most recently opened portion of the day's netted position.