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
3/8/2012 50,526,480 80,280,960 35,233 133,933,760 3,801 38,242 163,688,240 4,280 -29,754,480
3/7/2012 88,297,952 59,015,528 44,862 186,243,696 4,151 37,034 156,961,280 4,238 29,282,420
3/6/2012 87,898,640 95,042,800 56,811 231,128,384 4,068 54,247 238,272,544 4,392 -7,144,160
3/5/2012 129,035,536 4,615,770 47,028 194,580,064 4,138 18,638 70,160,304 3,764 124,419,768
3/2/2012 77,773,488 44,024,680 36,832 152,753,088 4,147 29,871 119,004,272 3,984 33,748,808
3/1/2012 67,352,040 38,900,928 32,072 126,334,256 3,939 26,179 97,883,152 3,739 28,451,110
2/29/2012 71,290,528 35,394,288 35,908 140,398,480 3,910 26,899 104,502,240 3,885 35,896,240
2/28/2012 47,762,720 54,773,060 33,312 132,212,224 3,969 35,496 139,222,560 3,922 -7,010,340
2/27/2012 75,114,880 24,826,740 36,290 136,543,680 3,763 25,167 86,255,536 3,427 50,288,140
2/24/2012 59,917,448 36,038,752 32,308 128,581,360 3,980 29,313 104,702,656 3,572 23,878,700
2/23/2012 74,642,488 23,496,880 32,067 134,858,496 4,206 26,072 83,712,888 3,211 51,145,608
2/22/2012 60,105,152 23,208,940 26,929 107,146,440 3,979 23,712 70,250,232 2,963 36,896,208
2/21/2012 40,983,140 50,336,640 26,562 97,637,728 3,676 31,075 106,991,232 3,443 -9,353,500
2/20/2012 45,438,288 15,046,140 22,719 87,723,360 3,861 19,451 57,331,208 2,947 30,392,150
2/17/2012 40,992,112 20,352,930 19,944 70,812,472 3,551 17,604 50,173,288 2,850 20,639,180
2/16/2012 31,038,610 26,668,270 18,459 62,288,472 3,374 17,325 57,918,128 3,343 4,370,340
2/15/2012 28,947,780 35,062,968 18,535 58,039,728 3,131 19,147 64,154,920 3,351 -6,115,190
2/14/2012 36,844,420 24,403,340 20,595 64,951,992 3,154 15,937 52,510,912 3,295 12,441,080
2/13/2012 19,613,560 31,311,520 16,515 47,717,040 2,889 18,227 59,415,000 3,260 -11,697,960
2/10/2012 21,396,510 46,213,360 20,056 67,293,120 3,355 25,892 92,109,968 3,557 -24,816,850