| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 26 | 26 | 0.00% | 0.01% | 0.05% | Q2 2017 | Q3 2023 | 26 |
| SIMPLEX TRADING, LLC | 26 | 26 | 0.00% | 0.00% | 0.01% | Q2 2017 | Q3 2023 | 26 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| Optiver Holding B.V. | 11 | 11 | 0.00% | 0.01% | 0.02% | Q1 2021 | Q3 2023 | 11 |
| JANE STREET GROUP, LLC | 6 | 6 | 0.00% | 0.00% | 0.01% | Q2 2022 | Q3 2023 | 6 |
| WELLS FARGO & COMPANY/MN | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2021 | Q4 2021 | 1 |
This page lists all the filers that currently own NATIONAL GRID PLC or have owned NATIONAL GRID PLC in the past.