| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 33 | 33 | 0.00% | 0.00% | 0.01% | Q3 2015 | Q3 2023 | 33 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| Citadel Advisors | 13 | 13 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q2 2016 | 13 |
| GROUP ONE TRADING, L.P. | 6 | 2 | 0.00% | 0.00% | 0.00% | Q2 2021 | Q3 2023 | 8 |
| JANE STREET GROUP, LLC | 6 | 6 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q3 2023 | 6 |
| Timber Hill LLC | 4 | 4 | 0.00% | 0.00% | 0.01% | Q2 2013 | Q1 2014 | 4 |
| HBK INVESTMENTS L P | 2 | 2 | 0.00% | 0.01% | 0.02% | Q2 2020 | Q2 2021 | 4 |
| Marathon Trading Investment Management LLC | 3 | 3 | 0.04% | 0.05% | 0.07% | Q3 2020 | Q1 2021 | 3 |
| Twin Tree Management, LP | 2 | 1 | 0.00% | 0.01% | 0.02% | Q3 2022 | Q2 2023 | 3 |
| Garda Capital Partners LP | 2 | 2 | 0.16% | 0.21% | 0.26% | Q2 2023 | Q3 2023 | 2 |
| Allianz Asset Management GmbH | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2020 | Q3 2021 | 2 |
| Maven Securities LTD | 1 | 1 | 0.01% | 0.01% | 0.02% | Q3 2020 | Q3 2022 | 2 |
| JPMORGAN CHASE & CO | 1 | 1 | 0.00% | 0.00% | 0.00% | Q1 2023 | Q1 2023 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
| BOOTHBAY FUND MANAGEMENT, LLC | 1 | 1 | 0.08% | 0.08% | 0.08% | Q1 2021 | Q1 2021 | 1 |
This page lists all the filers that currently own ANSYS INC or have owned ANSYS INC in the past.