| 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 | 8 | 1 | 0.00% | 0.00% | 0.00% | Q4 2016 | Q3 2023 | 18 |
| GROUP ONE TRADING, L.P. | 5 | 1 | 0.00% | 0.00% | 0.00% | Q1 2017 | Q4 2022 | 9 |
| Citadel Advisors | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q1 2015 | 3 |
This page lists all the filers that currently own ORION GROUP HOLDINGS INC or have owned ORION GROUP HOLDINGS INC in the past.