| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| Timber Hill LLC | 13 | 13 | 0.01% | 0.09% | 0.31% | Q1 2014 | Q1 2017 | 13 |
| Citadel Advisors | 10 | 10 | 0.00% | 0.00% | 0.01% | Q1 2014 | Q2 2016 | 10 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 8 | 8 | 0.00% | 0.00% | 0.00% | Q3 2022 | Q2 2024 | 8 |
| Virtu KCG Holdings LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q3 2014 | 1 |
This page lists all the filers that currently own PROSHARES ULTRASHORT QQQ or have owned PROSHARES ULTRASHORT QQQ in the past.