| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 41 | 41 | 0.00% | 0.07% | 0.23% | Q3 2013 | Q3 2023 | 41 |
| SIMPLEX TRADING, LLC | 36 | 36 | 0.00% | 0.01% | 0.03% | Q4 2014 | Q3 2023 | 36 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| IMC-Chicago, LLC | 11 | 8 | 0.00% | 0.00% | 0.03% | Q4 2018 | Q3 2023 | 19 |
| Timber Hill LLC | 15 | 15 | 0.00% | 0.01% | 0.03% | Q3 2013 | Q1 2017 | 15 |
| Citadel Advisors | 12 | 12 | 0.00% | 0.01% | 0.03% | Q3 2013 | Q2 2016 | 12 |
| Marathon Trading Investment Management LLC | 10 | 1 | 0.01% | 0.15% | 0.46% | Q3 2013 | Q2 2021 | 11 |
| Virtu KCG Holdings LLC | 10 | 10 | 0.00% | 0.01% | 0.02% | Q3 2013 | Q4 2015 | 10 |
| CTC LLC | 7 | 7 | 0.00% | 0.00% | 0.01% | Q2 2021 | Q4 2022 | 7 |
| SG Americas Securities, LLC | 6 | 1 | 0.00% | 0.01% | 0.01% | Q3 2013 | Q3 2020 | 7 |
| Chou Associates Management | 6 | 6 | 0.72% | 1.67% | 2.14% | Q4 2020 | Q1 2022 | 6 |
| JANE STREET GROUP, LLC | 6 | 6 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q3 2023 | 6 |
| CI INVESTMENTS INC. | 4 | 4 | 0.00% | 0.02% | 0.04% | Q1 2018 | Q4 2018 | 4 |
| CMT Asset Management Ltd | 4 | 4 | 0.01% | 0.04% | 0.05% | Q2 2015 | Q1 2016 | 4 |
| Fore Capital, LLC | 3 | 3 | 0.18% | 0.24% | 0.32% | Q1 2020 | Q3 2020 | 3 |
| PARK CIRCLE Co | 3 | 3 | 0.31% | 0.70% | 0.96% | Q2 2017 | Q4 2017 | 3 |
| JPMORGAN CHASE & CO | 2 | 1 | 0.00% | 0.00% | 0.01% | Q3 2015 | Q2 2017 | 3 |
| NorthRock Partners, LLC | 3 | 3 | 0.00% | 0.00% | 0.00% | Q4 2020 | Q2 2021 | 3 |
| LOEWS CORP | 3 | 3 | 0.06% | 0.12% | 0.15% | Q4 2013 | Q2 2014 | 3 |
| BOLTON LP | 2 | 2 | 0.00% | 0.00% | 0.00% | Q3 2013 | Q4 2013 | 2 |
| Pentwater Capital Management LP | 2 | 2 | 0.01% | 0.01% | 0.01% | Q3 2013 | Q4 2013 | 2 |
| ONTARIO TEACHERS PENSION PLAN BOARD | 2 | 2 | 0.20% | 0.24% | 0.28% | Q2 2016 | Q3 2016 | 2 |
| BARINGTON CAPITAL GROUP, L.P. | 2 | 2 | 0.48% | 1.13% | 1.78% | Q4 2020 | Q1 2021 | 2 |
| Hudson Bay Capital Management LP | 2 | 2 | 0.15% | 0.18% | 0.21% | Q3 2013 | Q4 2013 | 2 |
| SAC Capital Advisors LP | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2013 | Q3 2013 | 1 |
| EMS Capital LP | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2013 | Q3 2013 | 1 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1 | 1 | 0.00% | 0.00% | 0.00% | Q1 2017 | Q1 2017 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2014 | Q3 2014 | 1 |
| HRT FINANCIAL LP | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2023 | Q2 2023 | 1 |
| WELLS FARGO & COMPANY/MN | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2021 | Q2 2021 | 1 |
| GLG INC. | 1 | 1 | 0.08% | 0.08% | 0.08% | Q3 2013 | Q3 2013 | 1 |
| Advisor Group, Inc. | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2018 | Q2 2018 | 1 |
This page lists all the filers that currently own BLACKBERRY LTD or have owned BLACKBERRY LTD in the past.