| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| SIMPLEX TRADING, LLC | 6 | 1 | 0.00% | 0.00% | 0.00% | Q1 2019 | Q3 2023 | 12 |
| GROUP ONE TRADING, L.P. | 2 | 1 | 0.00% | 0.00% | 0.00% | Q2 2017 | Q3 2023 | 5 |
| 272 Capital LP | 2 | 2 | 0.01% | 0.01% | 0.02% | Q3 2022 | Q4 2022 | 2 |
| JANE STREET GROUP, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2023 | Q3 2023 | 1 |
This page lists all the filers that currently own NAPCO SEC TECHNOLOGIES INC or have owned NAPCO SEC TECHNOLOGIES INC in the past.