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
9/17/2009 41,466,048 50,281,032 51,317 118,061,040 2,301 45,221 126,876,016 2,806 -8,814,980
9/16/2009 60,382,320 41,658,856 50,959 128,736,280 2,526 40,531 110,012,816 2,714 18,723,460
9/15/2009 48,054,752 46,143,620 50,097 120,401,664 2,403 47,732 118,490,528 2,482 1,911,130
9/14/2009 51,444,400 41,771,732 44,715 116,904,128 2,614 43,493 107,231,456 2,465 9,672,670
9/11/2009 53,559,560 43,279,980 44,524 116,558,120 2,618 42,705 106,278,544 2,489 10,279,580
9/10/2009 51,755,100 40,677,640 43,280 104,733,104 2,420 37,017 93,655,640 2,530 11,077,460
9/9/2009 46,823,740 43,779,280 42,874 104,075,040 2,427 37,493 101,030,576 2,695 3,044,460
9/8/2009 52,384,408 31,900,248 44,568 101,397,208 2,275 29,146 80,913,048 2,776 20,484,160
9/4/2009 28,949,920 59,188,280 47,335 107,689,664 2,275 49,222 137,928,016 2,802 -30,238,360
9/3/2009 56,360,928 37,962,760 48,942 124,414,912 2,542 39,807 106,016,736 2,663 18,398,170
9/1/2009 57,344,080 46,498,160 48,468 130,543,088 2,693 48,983 119,697,168 2,444 10,845,920
8/31/2009 57,253,536 30,497,976 43,675 132,345,392 3,030 41,726 105,589,832 2,531 26,755,560
8/28/2009 56,929,488 30,845,210 41,489 115,151,040 2,775 36,951 89,066,760 2,410 26,084,280
8/27/2009 47,578,568 35,227,272 41,304 97,554,312 2,362 33,210 85,203,008 2,566 12,351,300
8/25/2009 30,517,660 38,902,472 39,979 100,097,640 2,504 44,740 108,482,448 2,425 -8,384,810
7/17/2009 19,016,530 23,010,020 22,493 44,600,008 1,983 24,725 48,593,500 1,965 -3,993,490
7/16/2009 24,649,240 25,045,550 24,207 54,708,040 2,260 23,742 55,104,352 2,321 -396,310
7/15/2009 25,484,652 14,920,512 24,876 48,789,980 1,961 17,621 38,225,840 2,169 10,564,140
7/14/2009 20,232,450 22,185,670 28,957 53,495,368 1,847 21,562 55,448,592 2,572 -1,953,220
7/13/2009 13,878,660 26,199,060 24,613 43,775,408 1,779 21,739 56,095,808 2,580 -12,320,400