| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 13 | 1 | 0.00% | 0.00% | 0.02% | Q4 2013 | Q2 2023 | 23 |
| SIMPLEX TRADING, LLC | 14 | 8 | 0.00% | 0.00% | 0.01% | Q4 2017 | Q3 2023 | 22 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| 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.