Date Unmatched Bid Vol Unmatched Ask Volume Buy Orders Buy Volume (Shares) Avg buy volume per order Sell Orders Sell Volume (Shares) Avg sell volume per order Net buy - sell volume
9/18/2009 29,008,800 12,770,500 27,976 66,931,600 2,392 25,434 50,693,300 1,993 16,238,300
9/17/2009 20,797,100 19,750,000 23,837 61,636,900 2,586 31,511 60,589,800 1,923 1,047,100
9/16/2009 20,438,200 19,076,700 26,179 62,228,800 2,377 33,142 60,867,300 1,837 1,361,500
9/15/2009 27,424,100 14,276,500 24,407 69,001,800 2,827 31,778 55,854,200 1,758 13,147,600
9/14/2009 23,480,500 11,301,500 24,002 64,613,400 2,692 28,785 52,434,400 1,822 12,179,000
9/11/2009 24,421,700 13,607,600 22,472 56,233,300 2,502 25,910 45,419,200 1,753 10,814,100
9/10/2009 22,742,800 13,755,900 22,334 50,764,200 2,273 22,630 41,777,300 1,846 8,986,900
9/9/2009 20,571,770 15,425,070 21,324 47,633,900 2,234 23,585 42,487,200 1,801 5,146,700
9/8/2009 18,891,200 9,596,900 22,235 44,203,900 1,988 17,889 34,909,600 1,951 9,294,300
9/7/2009 14,030,100 11,386,500 22,011 41,999,100 1,908 22,053 39,355,500 1,785 2,643,600
9/4/2009 11,240,200 17,211,800 26,792 50,995,900 1,903 27,972 56,967,500 2,037 -5,971,600
9/1/2009 15,095,900 18,495,300 23,893 54,732,700 2,291 33,084 58,132,100 1,757 -3,399,400
8/31/2009 23,057,200 9,627,200 24,440 60,868,100 2,491 26,329 47,438,100 1,802 13,430,000
8/28/2009 25,651,200 8,388,600 27,095 64,086,500 2,365 25,215 46,823,900 1,857 17,262,600
8/27/2009 18,090,400 12,300,000 23,719 45,415,900 1,915 21,237 39,625,500 1,866 5,790,400
8/25/2009 12,239,100 17,826,200 21,489 41,820,200 1,946 28,024 47,407,300 1,692 -5,587,100
7/17/2009 5,866,100 10,567,700 9,536 17,219,200 1,806 14,487 21,920,800 1,513 -4,701,600
7/16/2009 8,602,100 7,794,100 9,863 21,314,900 2,161 13,249 20,506,900 1,548 808,000
7/15/2009 8,348,600 6,857,800 10,454 19,774,300 1,892 11,151 18,283,500 1,640 1,490,800
7/14/2009 6,117,000 8,280,000 12,639 19,433,200 1,538 12,408 21,596,200 1,741 -2,163,000