| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 12 | 4 | 0.00% | 0.00% | 0.00% | Q2 2016 | Q3 2023 | 26 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| GROUP ONE TRADING, L.P. | 5 | 3 | 0.00% | 0.00% | 0.00% | Q2 2018 | Q3 2023 | 11 |
| JANE STREET GROUP, LLC | 3 | 3 | 0.00% | 0.00% | 0.00% | Q3 2022 | Q1 2023 | 3 |
This page lists all the filers that currently own GRIFFON CORP or have owned GRIFFON CORP in the past.