Ceased on November 7, 2016
All OTC Securities 
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2015 | 4 | 32 | 5,259,323 | 164,354 |
| 2015 | 3 | 31 | 178,590 | 5,761 |
| 2015 | 2 | 11 | 26,700 | 2,427 |
Tier 1 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2016 | 4 | 1,726 | 29,389,952 | 17,028 |
| 2016 | 3 | 3,079 | 50,352,947 | 16,354 |
| 2016 | 2 | 2,273 | 41,119,979 | 18,091 |
| 2016 | 1 | 3,135 | 60,340,170 | 19,247 |
| 2015 | 4 | 3,914 | 144,681,687 | 36,965 |
| 2015 | 3 | 4,434 | 169,102,761 | 38,138 |
| 2015 | 2 | 11,192 | 188,999,108 | 16,887 |
| 2015 | 1 | 2,749 | 192,195,176 | 69,915 |
| 2014 | 4 | 2,565 | 185,437,794 | 72,295 |
| 2014 | 3 | 3,418 | 187,606,494 | 54,888 |
| 2014 | 2 | 2,678 | 93,328,368 | 34,850 |
Tier 2 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2016 | 4 | 581 | 8,886,237 | 15,295 |
| 2016 | 3 | 1,102 | 18,111,078 | 16,435 |
| 2016 | 2 | 955 | 14,497,298 | 15,180 |
| 2016 | 1 | 1,070 | 19,109,351 | 17,859 |
| 2015 | 4 | 1,700 | 39,636,749 | 23,316 |
| 2015 | 3 | 2,077 | 52,204,445 | 25,135 |
| 2015 | 2 | 7,264 | 48,024,676 | 6,611 |
| 2015 | 1 | 1,002 | 46,166,056 | 46,074 |
| 2014 | 4 | 812 | 40,574,270 | 49,968 |
| 2014 | 3 | 924 | 30,175,713 | 32,658 |
| 2014 | 2 | 1,245 | 20,962,006 | 16,837 |
NMS Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2016 | 4 | 2,307 | 38,276,189 | 16,591 |
| 2016 | 3 | 4,181 | 68,464,025 | 16,375 |
| 2016 | 2 | 3,228 | 55,617,277 | 17,230 |
| 2016 | 1 | 4,205 | 79,449,521 | 18,894 |
| 2015 | 4 | 5,614 | 184,318,436 | 32,832 |
| 2015 | 3 | 6,511 | 221,307,206 | 33,990 |
| 2015 | 2 | 18,456 | 237,023,784 | 12,843 |
| 2015 | 1 | 3,751 | 238,361,232 | 63,546 |
| 2014 | 4 | 3,377 | 226,012,064 | 66,927 |
| 2014 | 3 | 4,342 | 217,782,207 | 50,157 |
| 2014 | 2 | 3,923 | 114,290,374 | 29,133 |
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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