| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 11 | 11 | 0.00% | 0.00% | 0.00% | Q1 2021 | Q3 2023 | 11 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 11 | 11 | 0.00% | 0.00% | 0.00% | Q1 2021 | Q3 2023 | 11 |
| GROUP ONE TRADING, L.P. | 3 | 1 | 0.00% | 0.00% | 0.00% | Q2 2021 | Q2 2023 | 6 |
This page lists all the filers that currently own PROPHASE LABS INC or have owned PROPHASE LABS INC in the past.