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.
Month: Nov 2012
Trades % of Trades Share Volume % of Volume | Block | 15 | 0.00 % | 283,451 | 0.00 % | | Non-Block | 148,206,636 | 100.00 % | 36,150,557,259 | 100.00 % | | Total | 148,206,651 | 100.00 % | 36,150,840,710 | 100.00 % | | Average Daily Share Volume | 1,721,468,605 | | Average Daily Dollar Volume | $52,707,512,099 | | # of Trading Days | 21 | | | Total NASDAQ-Listed Securities | 2,740 | | Total Market Makers | 115 | | Total Market Maker Positions | 45,824 | | Average Market Makers/Security | 16.72 | |