Ok so if the pink is short and blue is long a rough estimate of what may have happened is the following..
Sold 50 @ 905
covered 25 @ 866 48,750
covered 7 @ 865 14,000
covered 5 @ 857 12,000
covered 4 @ 856 9,800
covered 3 @ 855 7,500
covered 3 @ 850 8,250
covered 3 @...