All OTC Securities 
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2020 | 4 | 946,250 | 44,649,626,058 | 47,186 |
| 2020 | 3 | 625,137 | 28,387,217,629 | 45,410 |
| 2020 | 2 | 535,954 | 17,060,908,523 | 31,833 |
| 2020 | 1 | 393,730 | 7,251,019,508 | 18,416 |
| 2019 | 4 | 209,170 | 6,941,148,460 | 33,184 |
| 2019 | 3 | 224,398 | 4,254,032,104 | 18,958 |
| 2019 | 2 | 189,265 | 3,259,104,553 | 17,220 |
| 2019 | 1 | 167,633 | 17,926,804,585 | 106,941 |
| 2018 | 4 | 183,731 | 10,485,685,893 | 57,071 |
| 2018 | 3 | 163,978 | 4,542,642,187 | 27,703 |
| 2018 | 2 | 138,581 | 1,216,470,903 | 8,778 |
| 2018 | 1 | 22,961 | 165,272,418 | 7,198 |
| 2017 | 4 | 22 | 101,900 | 4,632 |
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.
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