Do the math....and you'll find the contradictions in the presentation.
Secure Data
Market Ops Monthly Market Summary
The Monthly Market Summary provide a summarization of activity for a given month. The values are an aggregation of the month's trading statistics specifically: Share Volume, Number of Trades, and the number of positions in NASDAQ securities. The statistics are available for the NASDAQ Market as a whole. Monthly Market Activity data for a given month becomes available approximately on the tenth business day of the following month.
nasdaqtrader.com
Month:
Trades % of Trades Share Volume % of Volume
Block 179,484 0.11 % 5,826,452,886 13.81 %
Non-Block 167,678,731 99.89 % 36,357,136,479 86.19 %
Total 167,858,215 100.00 % 42,183,589,365 100.00 %
Average Daily Share Volume 2,008,742,351
Average Daily Dollar Volume $51,925,412,075
# of Trading Days 21
Total NASDAQ-Listed Securities 2,941
Total Market Makers 136
Total Market Maker Positions 45,361
Average Market Makers/Security 15.42
Market Ops Daily Market Summary
Daily market summary represents volume from all trading venues on which NASDAQ® Issues are traded.
For Dec 13, 2010 Share Volume Dollar Volume
Total Volume: 1,877,120,475 $50,635,294,522
Block Volume: 235,155,480
Number of Issues: 2,900
Number of MPs: 786
Total Trades: 7,588,001
Block Trades: 6,994
For Dec 10, 2010 Share Volume Dollar Volume
Total Volume: 1,772,182,738 $44,621,429,729
Block Volume: 211,037,905
Number of Issues: 2,899
Number of MPs: 786
Total Trades: 7,461,919
Block Trades: 7,175
For Dec 09, 2010 Share Volume Dollar Volume
Total Volume: 1,963,741,958 $46,822,598,500
Block Volume: 313,447,678
Number of Issues: 2,897
Number of MPs: 786
Total Trades: 7,447,696
Block Trades: 10,118
For Dec 08, 2010 Share Volume Dollar Volume
Total Volume: 1,802,675,156 $44,135,308,742
Block Volume: 222,498,565
Number of Issues: 2,897
Number of MPs: 786
Total Trades: 7,362,539
Block Trades: 7,764
For Dec 07, 2010 Share Volume Dollar Volume
Total Volume: 1,957,522,524 $52,217,181,868
Block Volume: 207,269,641
Number of Issues: 2,897
Number of MPs: 786
Total Trades: 8,422,015
Block Trades: 7,212 |
