ATS closed in 2015
All OTC Securities 
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2015 | 1 | 3,381 | 77,983 | 23 |
| 2014 | 4 | 10,740 | 97,477 | 9 |
| 2014 | 3 | 10,622 | 955,766 | 90 |
| 2014 | 2 | 5,845 | 33,560 | 6 |
Tier 1 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2015 | 1 | 47,817 | 2,498,776 | 52 |
| 2014 | 4 | 145,181 | 6,606,422 | 46 |
| 2014 | 3 | 142,226 | 4,998,130 | 35 |
| 2014 | 2 | 77,070 | 2,874,350 | 37 |
Tier 2 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2015 | 1 | 69,421 | 1,528,834 | 22 |
| 2014 | 4 | 207,535 | 4,059,272 | 20 |
| 2014 | 3 | 201,413 | 3,697,304 | 18 |
| 2014 | 2 | 112,779 | 2,312,237 | 21 |
NMS Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2015 | 1 | 117,238 | 4,027,610 | 34 |
| 2014 | 4 | 352,716 | 10,665,694 | 30 |
| 2014 | 3 | 343,639 | 8,695,434 | 25 |
| 2014 | 2 | 189,849 | 5,186,587 | 27 |
Original Source of Information: FINRA ATS Transparency Data Quarterly Statistics
ATS data has been aggregated on a quarterly basis to display total shares, total trades and average trade size per ATS.
Tier 1 comprises all securities in the S&P 500, the Russell 1000 and select Exchange Traded Products (ETPs). Tier 2 comprises all other NMS securities, except for rights and warrants, which are specifically excluded from coverage. The LULD Plan applies during regular trading hours of 9:30 am ET – 4:00 pm ET, excepting opening, reopening, and closing transactions on the primary listing exchanges.
See Limitup-limit-down for a more detailed explanation of these categories.
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