| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 33 | 33 | 0.00% | 0.01% | 0.04% | Q3 2014 | Q3 2022 | 33 |
| SIMPLEX TRADING, LLC | 29 | 1 | 0.00% | 0.01% | 0.02% | Q4 2014 | Q3 2022 | 30 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 17 | 17 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2022 | 17 |
| Citadel Advisors | 8 | 8 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q2 2016 | 8 |
| SG Americas Securities, LLC | 2 | 1 | 0.00% | 0.00% | 0.01% | Q3 2021 | Q2 2022 | 3 |
| JANE STREET GROUP, LLC | 2 | 2 | 0.00% | 0.01% | 0.01% | Q2 2022 | Q3 2022 | 2 |
| JPMORGAN CHASE & CO | 2 | 2 | 0.00% | 0.00% | 0.00% | Q1 2022 | Q2 2022 | 2 |
| HBK INVESTMENTS L P | 1 | 1 | 0.06% | 0.06% | 0.06% | Q4 2021 | Q4 2021 | 1 |
| Maven Securities LTD | 1 | 1 | 0.23% | 0.23% | 0.23% | Q3 2022 | Q3 2022 | 1 |
| Calamos Advisors LLC | 1 | 1 | 0.05% | 0.05% | 0.05% | Q3 2019 | Q3 2019 | 1 |
| PICTON MAHONEY ASSET MANAGEMENT | 1 | 1 | 0.42% | 0.42% | 0.42% | Q3 2022 | Q3 2022 | 1 |
| TWO SIGMA SECURITIES, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2019 | Q3 2019 | 1 |
| Pentwater Capital Management LP | 1 | 1 | 0.58% | 0.58% | 0.58% | Q2 2022 | Q2 2022 | 1 |
| Ancora Advisors LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q2 2022 | 1 |
| Verde Servicos Internacionais S.A. | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2022 | Q2 2022 | 1 |
| ADVENT CAPITAL MANAGEMENT /DE/ | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2018 | Q2 2018 | 1 |
This page lists all the filers that currently own ZENDESK INC or have owned ZENDESK INC in the past.