| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 10 | 10 | 0.00% | 0.01% | 0.04% | Q3 2013 | Q4 2015 | 10 |
| Citadel Advisors | 3 | 2 | 0.00% | 0.00% | 0.00% | Q2 2013 | Q4 2015 | 5 |
| SIMPLEX TRADING, LLC | 5 | 5 | 0.00% | 0.00% | 0.01% | Q1 2015 | Q1 2016 | 5 |
| Timber Hill LLC | 2 | 2 | 0.00% | 0.00% | 0.01% | Q2 2013 | Q3 2013 | 2 |
| LUPO SECURITIES, LLC | 1 | 1 | 0.25% | 0.25% | 0.25% | Q3 2015 | Q3 2015 | 1 |
| HARVEST MANAGEMENT LLC | 1 | 1 | 0.22% | 0.22% | 0.22% | Q3 2015 | Q3 2015 | 1 |
This page lists all the filers that currently own PEPCO HOLDINGS INC or have owned PEPCO HOLDINGS INC in the past.