| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 17 | 1 | 0.00% | 0.00% | 0.00% | Q4 2015 | Q2 2024 | 29 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 24 | 24 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q2 2024 | 24 |
| GROUP ONE TRADING, L.P. | 6 | 1 | 0.00% | 0.01% | 0.04% | Q3 2018 | Q3 2023 | 13 |
| JANE STREET GROUP, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2023 | Q4 2023 | 1 |
This page lists all the filers that currently own PROS HOLDINGS INC or have owned PROS HOLDINGS INC in the past.