| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 19 | 19 | 0.00% | 0.02% | 0.08% | Q3 2014 | Q1 2019 | 19 |
| SIMPLEX TRADING, LLC | 18 | 18 | 0.00% | 0.00% | 0.01% | Q1 2015 | Q2 2019 | 18 |
| Timber Hill LLC | 11 | 11 | 0.00% | 0.01% | 0.03% | Q3 2014 | Q1 2017 | 11 |
| Citadel Advisors | 8 | 8 | 0.00% | 0.00% | 0.01% | Q3 2014 | Q2 2016 | 8 |
| SG Americas Securities, LLC | 5 | 2 | 0.00% | 0.01% | 0.04% | Q3 2014 | Q1 2019 | 7 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 7 | 7 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q1 2020 | 7 |
| JPMORGAN CHASE & CO | 4 | 2 | 0.00% | 0.00% | 0.00% | Q3 2015 | Q4 2018 | 6 |
| WATER ISLAND CAPITAL LLC | 3 | 3 | 0.00% | 0.00% | 0.02% | Q3 2014 | Q1 2015 | 4 |
| ADVENT CAPITAL MANAGEMENT /DE/ | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2016 | Q4 2016 | 2 |
| Virtu KCG Holdings LLC | 2 | 2 | 0.00% | 0.01% | 0.01% | Q3 2014 | Q4 2014 | 2 |
| Marathon Trading Investment Management LLC | 2 | 2 | 0.01% | 0.03% | 0.04% | Q2 2015 | Q3 2015 | 2 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 1 | 1 | 0.02% | 0.02% | 0.02% | Q2 2015 | Q4 2015 | 2 |
| IMC-Chicago, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2018 | Q4 2018 | 1 |
| Hudson Bay Capital Management LP | 1 | 1 | 0.14% | 0.14% | 0.14% | Q2 2015 | Q2 2015 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.01% | 0.01% | 0.01% | Q3 2014 | Q3 2014 | 1 |
| Worth Venture Partners, LLC | 1 | 1 | 0.03% | 0.03% | 0.03% | Q4 2018 | Q4 2018 | 1 |
| Apollo Management Holdings, L.P. | 1 | 1 | 0.08% | 0.08% | 0.08% | Q2 2017 | Q2 2017 | 1 |
This page lists all the filers that currently own WEATHERFORD INTL PLC or have owned WEATHERFORD INTL PLC in the past.