| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 28 | 4 | 0.00% | 0.00% | 0.02% | Q4 2014 | Q1 2023 | 32 |
| GROUP ONE TRADING, L.P. | 14 | 13 | 0.00% | 0.03% | 0.07% | Q2 2013 | Q1 2020 | 27 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| Citadel Advisors | 13 | 13 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q2 2016 | 13 |
| PEAK6 Group LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
This page lists all the filers that currently own OSI SYSTEMS INC or have owned OSI SYSTEMS INC in the past.