| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 36 | 36 | 0.00% | 0.00% | 0.01% | Q4 2014 | Q3 2023 | 36 |
| GROUP ONE TRADING, L.P. | 16 | 1 | 0.00% | 0.00% | 0.02% | Q2 2013 | Q3 2023 | 33 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| Timber Hill LLC | 11 | 1 | 0.00% | 0.01% | 0.02% | Q2 2013 | Q1 2017 | 14 |
| Citadel Advisors | 13 | 13 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q2 2016 | 13 |
| JANE STREET GROUP, LLC | 6 | 6 | 0.00% | 0.00% | 0.01% | Q2 2022 | Q3 2023 | 6 |
| JPMORGAN CHASE & CO | 2 | 1 | 0.00% | 0.00% | 0.00% | Q4 2017 | Q2 2021 | 4 |
| Twin Tree Management, LP | 2 | 2 | 0.01% | 0.01% | 0.01% | Q2 2022 | Q3 2022 | 2 |
| Pentwater Capital Management LP | 2 | 2 | 0.02% | 0.32% | 0.62% | Q2 2021 | Q3 2021 | 2 |
| Athanor Capital, LP | 2 | 2 | 0.05% | 0.05% | 0.05% | Q4 2020 | Q1 2021 | 2 |
| Hudson Bay Capital Management LP | 1 | 1 | 0.01% | 0.01% | 0.01% | Q1 2017 | Q1 2017 | 1 |
| WATER ISLAND CAPITAL LLC | 1 | 1 | 0.02% | 0.02% | 0.02% | Q2 2021 | Q2 2021 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
| TWO SIGMA SECURITIES, LLC | 1 | 1 | 0.02% | 0.02% | 0.02% | Q3 2019 | Q3 2019 | 1 |
| Segantii Capital Management Ltd | 1 | 1 | 0.61% | 0.61% | 0.61% | Q2 2021 | Q2 2021 | 1 |
This page lists all the filers that currently own CANADIAN NATL RY CO or have owned CANADIAN NATL RY CO in the past.