| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SIMPLEX TRADING, LLC | 4 | 4 | 0.00% | 0.00% | 0.00% | Q3 2015 | Q2 2016 | 4 |
| Citadel Advisors | 2 | 1 | 0.00% | 0.00% | 0.00% | Q3 2015 | Q2 2016 | 3 |
| GROUP ONE TRADING, L.P. | 3 | 3 | 0.00% | 0.02% | 0.03% | Q4 2015 | Q2 2016 | 3 |
This page lists all the filers that currently own COLUMBIA PIPELINE GROUP INC or have owned COLUMBIA PIPELINE GROUP INC in the past.