| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| SIMPLEX TRADING, LLC | 3 | 1 | 0.00% | 0.00% | 0.00% | Q3 2015 | Q3 2018 | 8 |
| GROUP ONE TRADING, L.P. | 3 | 1 | 0.00% | 0.00% | 0.00% | Q1 2014 | Q1 2020 | 7 |
| Citadel Advisors | 5 | 5 | 0.00% | 0.00% | 0.00% | Q1 2014 | Q1 2015 | 5 |
| Elite Wealth Management, Inc. | 2 | 2 | 0.00% | 0.00% | 0.01% | Q2 2014 | Q3 2014 | 2 |
This page lists all the filers that currently own MARCHEX INC or have owned MARCHEX INC in the past.