| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 2 | 2 | 0.00% | 0.00% | 0.00% | Q3 2013 | Q4 2013 | 2 |
| SIMPLEX TRADING, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2015 | Q2 2015 | 1 |
This page lists all the filers that currently own ZEP INC or have owned ZEP INC in the past.