| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 39 | 39 | 0.00% | 0.05% | 0.19% | Q4 2014 | Q2 2024 | 39 |
| SG Americas Securities, LLC | 36 | 2 | 0.00% | 0.01% | 0.06% | Q2 2013 | Q4 2022 | 38 |
| GROUP ONE TRADING, L.P. | 37 | 37 | 0.01% | 0.04% | 0.10% | Q2 2015 | Q2 2024 | 37 |
| JPMORGAN CHASE & CO | 22 | 13 | 0.00% | 0.01% | 0.03% | Q3 2015 | Q2 2024 | 35 |
| Allianz Asset Management GmbH | 22 | 12 | 0.00% | 0.06% | 0.18% | Q1 2015 | Q4 2023 | 34 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 24 | 24 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q2 2024 | 24 |
| Gladius Capital Management LP | 10 | 3 | 0.05% | 0.55% | 2.15% | Q2 2018 | Q2 2024 | 21 |
| IMC-Chicago, LLC | 11 | 10 | 0.01% | 0.03% | 0.07% | Q4 2018 | Q2 2024 | 21 |
| Timber Hill LLC | 16 | 16 | 0.04% | 0.11% | 0.18% | Q2 2013 | Q1 2017 | 16 |
| Maven Securities LTD | 5 | 4 | 0.03% | 0.09% | 0.22% | Q4 2019 | Q3 2023 | 14 |
| Citadel Advisors | 13 | 13 | 0.02% | 0.03% | 0.06% | Q2 2013 | Q2 2016 | 13 |
| SABBY MANAGEMENT, LLC | 6 | 2 | 0.07% | 1.03% | 2.95% | Q2 2013 | Q1 2018 | 13 |
| HRT FINANCIAL LP | 3 | 1 | 0.00% | 0.03% | 0.13% | Q2 2019 | Q2 2024 | 11 |
| Virtu KCG Holdings LLC | 10 | 10 | 0.02% | 0.05% | 0.09% | Q3 2013 | Q4 2015 | 10 |
| CTC LLC | 9 | 9 | 0.01% | 0.03% | 0.04% | Q4 2021 | Q4 2023 | 9 |
| JANE STREET GROUP, LLC | 9 | 9 | 0.00% | 0.02% | 0.04% | Q2 2022 | Q2 2024 | 9 |
| TLP GROUP LLC | 9 | 9 | 0.07% | 0.95% | 3.49% | Q3 2017 | Q3 2019 | 9 |
| COMMERZBANK AKTIENGESELLSCHAFT /FI | 7 | 1 | 0.00% | 0.01% | 0.03% | Q2 2013 | Q2 2019 | 8 |
| HBK INVESTMENTS L P | 3 | 2 | 0.01% | 0.05% | 0.09% | Q1 2019 | Q1 2022 | 7 |
| Marathon Trading Investment Management LLC | 1 | 1 | 0.02% | 0.19% | 0.66% | Q1 2019 | Q2 2024 | 4 |
| OSAIC HOLDINGS, INC. | 4 | 4 | 0.00% | 0.00% | 0.00% | Q1 2020 | Q4 2020 | 4 |
| Compagnie Lombard Odier SCmA | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2019 | Q2 2021 | 3 |
| WELLS FARGO & COMPANY/MN | 3 | 3 | 0.00% | 0.00% | 0.00% | Q2 2021 | Q4 2021 | 3 |
| PFM Health Sciences, LP | 1 | 1 | 0.05% | 2.10% | 4.16% | Q3 2015 | Q2 2016 | 2 |
| LUPO SECURITIES, LLC | 2 | 2 | 0.02% | 0.06% | 0.10% | Q4 2014 | Q1 2015 | 2 |
| Elite Wealth Management, Inc. | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2013 | Q3 2016 | 2 |
| Partner Investment Management, L.P. | 1 | 1 | 0.05% | 2.07% | 4.09% | Q3 2015 | Q2 2016 | 2 |
| Iguana Healthcare Management, LLC | 1 | 1 | 0.97% | 1.12% | 1.27% | Q3 2014 | Q1 2016 | 2 |
| Twin Tree Management, LP | 1 | 1 | 0.03% | 0.05% | 0.07% | Q2 2022 | Q4 2022 | 2 |
| NATIONAL BANK OF CANADA /FI/ | 1 | 1 | 0.05% | 0.06% | 0.06% | Q3 2022 | Q3 2023 | 2 |
| Advisor Group, Inc. | 2 | 2 | 0.00% | 0.00% | 0.00% | Q3 2019 | Q4 2019 | 2 |
| Hudson Bay Capital Management LP | 2 | 2 | 0.54% | 0.78% | 1.02% | Q4 2018 | Q1 2019 | 2 |
| Capital Markets Trading UK LLP | 2 | 2 | 0.03% | 0.05% | 0.07% | Q1 2018 | Q2 2018 | 2 |
| Laurion Capital Management LP | 1 | 1 | 0.25% | 0.25% | 0.25% | Q3 2014 | Q3 2014 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.03% | 0.03% | 0.03% | Q3 2014 | Q3 2014 | 1 |
| TWO SIGMA SECURITIES, LLC | 1 | 1 | 0.03% | 0.03% | 0.03% | Q3 2019 | Q3 2019 | 1 |
| KNIGHT CAPITAL GROUP LLC | 1 | 1 | 0.08% | 0.08% | 0.08% | Q2 2013 | Q2 2013 | 1 |
| GLENMEDE TRUST CO NA | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2020 | Q4 2020 | 1 |
| Worth Venture Partners, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q1 2023 | Q1 2023 | 1 |
| Perigon Wealth Management, LLC | 1 | 1 | 0.02% | 0.02% | 0.02% | Q2 2019 | Q2 2019 | 1 |
| CMT Asset Management Ltd | 1 | 1 | 0.61% | 0.61% | 0.61% | Q1 2017 | Q1 2017 | 1 |
| CIBC WORLD MARKETS CORP | 1 | 1 | 0.02% | 0.02% | 0.02% | Q3 2019 | Q3 2019 | 1 |
| ArchPoint Investors | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2019 | Q3 2019 | 1 |
| BOOTHBAY FUND MANAGEMENT, LLC | 1 | 1 | 0.10% | 0.10% | 0.10% | Q4 2018 | Q4 2018 | 1 |
| BOLTON LP | 1 | 1 | 0.01% | 0.01% | 0.01% | Q4 2013 | Q4 2013 | 1 |
| SOCIETE GENERALE | 1 | 1 | 0.02% | 0.02% | 0.02% | Q2 2016 | Q2 2016 | 1 |
This page lists all the filers that currently own MERCK & CO INC or have owned MERCK & CO INC in the past.