| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING LLC | 13 | 1 | 0.00% | 0.00% | 0.02% | Q4 2013 | Q1 2024 | 25 |
| SIMPLEX TRADING, LLC | 14 | 2 | 0.00% | 0.00% | 0.01% | Q4 2017 | Q2 2024 | 24 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 24 | 24 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q2 2024 | 24 |
| JANE STREET GROUP, LLC | 3 | 3 | 0.00% | 0.00% | 0.00% | Q4 2023 | Q2 2024 | 3 |
| JPMORGAN CHASE & CO | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2019 | Q3 2019 | 1 |
This page lists all the filers that currently own QUINSTREET INC or have owned QUINSTREET INC in the past.