formerly known as Knight Match
All OTC Securities 
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2014 | 2 | 577 | 161,295 | 280 |
Tier 1 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2020 | 4 | 4,269,536 | 607,978,189 | 142 |
| 2020 | 3 | 4,226,245 | 712,087,661 | 168 |
| 2020 | 2 | 4,072,978 | 865,191,932 | 212 |
| 2020 | 1 | 4,642,023 | 1,039,630,963 | 224 |
| 2019 | 4 | 3,268,461 | 647,711,490 | 198 |
| 2019 | 3 | 3,952,401 | 730,275,407 | 185 |
| 2019 | 2 | 3,637,065 | 630,700,006 | 173 |
| 2019 | 1 | 2,318,512 | 441,560,358 | 190 |
| 2018 | 4 | 3,179,889 | 613,731,467 | 193 |
| 2018 | 3 | 2,529,299 | 459,017,355 | 181 |
| 2018 | 2 | 4,141,630 | 718,075,121 | 173 |
| 2018 | 1 | 3,678,140 | 655,105,982 | 178 |
| 2017 | 4 | 4,482,574 | 788,812,611 | 176 |
| 2017 | 3 | 5,038,602 | 888,098,687 | 176 |
| 2017 | 2 | 6,634,106 | 1,193,054,359 | 180 |
| 2017 | 1 | 7,482,302 | 1,366,480,159 | 183 |
| 2016 | 4 | 9,300,196 | 1,727,511,589 | 186 |
| 2016 | 3 | 7,757,501 | 1,454,276,156 | 187 |
| 2016 | 2 | 8,699,607 | 1,406,784,572 | 162 |
| 2016 | 1 | 10,658,342 | 1,765,576,712 | 166 |
| 2015 | 4 | 8,738,078 | 1,478,437,299 | 169 |
| 2015 | 3 | 9,648,570 | 1,634,065,758 | 169 |
| 2015 | 2 | 8,760,545 | 1,451,078,393 | 166 |
| 2015 | 1 | 8,835,567 | 1,459,723,768 | 165 |
| 2014 | 4 | 10,232,106 | 1,711,764,064 | 167 |
| 2014 | 3 | 11,248,206 | 1,739,969,038 | 155 |
| 2014 | 2 | 6,018,013 | 851,841,912 | 142 |
Tier 2 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2020 | 4 | 4,425,446 | 892,778,458 | 202 |
| 2020 | 3 | 3,936,029 | 934,113,446 | 237 |
| 2020 | 2 | 3,656,629 | 1,016,168,208 | 278 |
| 2020 | 1 | 3,266,370 | 827,043,473 | 253 |
| 2019 | 4 | 2,514,967 | 566,685,804 | 225 |
| 2019 | 3 | 2,604,741 | 607,193,975 | 233 |
| 2019 | 2 | 2,401,574 | 525,530,070 | 219 |
| 2019 | 1 | 1,604,117 | 364,570,857 | 227 |
| 2018 | 4 | 2,179,878 | 475,933,919 | 218 |
| 2018 | 3 | 1,863,860 | 389,552,743 | 209 |
| 2018 | 2 | 2,980,583 | 552,171,611 | 185 |
| 2018 | 1 | 2,661,444 | 490,931,342 | 184 |
| 2017 | 4 | 3,240,219 | 591,490,962 | 183 |
| 2017 | 3 | 3,738,460 | 671,069,687 | 180 |
| 2017 | 2 | 4,688,961 | 841,355,307 | 179 |
| 2017 | 1 | 5,084,423 | 938,009,852 | 184 |
| 2016 | 4 | 5,642,963 | 1,044,968,080 | 185 |
| 2016 | 3 | 4,710,294 | 905,682,283 | 192 |
| 2016 | 2 | 4,249,369 | 783,119,560 | 184 |
| 2016 | 1 | 4,778,059 | 891,713,691 | 187 |
| 2015 | 4 | 4,486,573 | 854,680,422 | 190 |
| 2015 | 3 | 5,438,727 | 1,017,574,952 | 187 |
| 2015 | 2 | 5,477,782 | 978,271,700 | 179 |
| 2015 | 1 | 5,046,771 | 932,385,726 | 185 |
| 2014 | 4 | 5,922,218 | 1,080,412,165 | 182 |
| 2014 | 3 | 7,201,561 | 1,100,592,137 | 153 |
| 2014 | 2 | 4,086,988 | 615,528,680 | 151 |
NMS Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2020 | 4 | 8,694,982 | 1,500,756,647 | 173 |
| 2020 | 3 | 8,162,274 | 1,646,201,107 | 202 |
| 2020 | 2 | 7,729,607 | 1,881,360,140 | 243 |
| 2020 | 1 | 7,908,393 | 1,866,674,436 | 236 |
| 2019 | 4 | 5,783,428 | 1,214,397,294 | 210 |
| 2019 | 3 | 6,557,142 | 1,337,469,382 | 204 |
| 2019 | 2 | 6,038,639 | 1,156,230,076 | 191 |
| 2019 | 1 | 3,922,629 | 806,131,215 | 206 |
| 2018 | 4 | 5,359,767 | 1,089,665,386 | 203 |
| 2018 | 3 | 4,393,159 | 848,570,098 | 193 |
| 2018 | 2 | 7,122,213 | 1,270,246,732 | 178 |
| 2018 | 1 | 6,339,584 | 1,146,037,324 | 181 |
| 2017 | 4 | 7,722,793 | 1,380,303,573 | 179 |
| 2017 | 3 | 8,777,062 | 1,559,168,374 | 178 |
| 2017 | 2 | 11,323,067 | 2,034,409,666 | 180 |
| 2017 | 1 | 12,566,725 | 2,304,490,011 | 183 |
| 2016 | 4 | 14,943,159 | 2,772,479,669 | 186 |
| 2016 | 3 | 12,467,795 | 2,359,958,439 | 189 |
| 2016 | 2 | 12,948,976 | 2,189,904,132 | 169 |
| 2016 | 1 | 15,436,401 | 2,657,290,403 | 172 |
| 2015 | 4 | 13,224,651 | 2,333,117,721 | 176 |
| 2015 | 3 | 15,087,297 | 2,651,640,710 | 176 |
| 2015 | 2 | 14,238,327 | 2,429,350,093 | 171 |
| 2015 | 1 | 13,882,338 | 2,392,109,494 | 172 |
| 2014 | 4 | 16,154,324 | 2,792,176,229 | 173 |
| 2014 | 3 | 18,449,767 | 2,840,561,175 | 154 |
| 2014 | 2 | 10,105,001 | 1,467,370,592 | 145 |
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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