Ceased on September 4, 2019
Tier 1 Securities 
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2019 | 2 | 11 | 38,700 | 3,518 |
| 2019 | 1 | 10 | 15,000 | 1,500 |
| 2018 | 3 | 67 | 59,007 | 881 |
| 2018 | 2 | 85 | 57,282 | 674 |
Tier 2 Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2019 | 2 | 2 | 1,300 | 650 |
| 2019 | 1 | 4 | 15,000 | 3,750 |
| 2018 | 3 | 42 | 32,800 | 781 |
| 2018 | 2 | 26 | 24,200 | 931 |
NMS Securities
| Year | Q | Total Trades | Total Shares | Avg Trade Size |
|---|---|---|---|---|
| 2019 | 2 | 13 | 40,000 | 3,077 |
| 2019 | 1 | 14 | 30,000 | 2,143 |
| 2018 | 3 | 109 | 91,807 | 842 |
| 2018 | 2 | 111 | 81,482 | 734 |
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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