| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| GROUP ONE TRADING, L.P. | 14 | 14 | 0.00% | 0.01% | 0.08% | Q2 2014 | Q3 2017 | 14 |
| SIMPLEX TRADING, LLC | 8 | 8 | 0.00% | 0.00% | 0.00% | Q1 2015 | Q4 2016 | 8 |
| Citadel Advisors | 4 | 3 | 0.00% | 0.00% | 0.00% | Q3 2014 | Q2 2016 | 7 |
| SABBY MANAGEMENT, LLC | 5 | 1 | 0.02% | 0.04% | 0.10% | Q3 2014 | Q4 2016 | 6 |
| Ghost Tree Capital, LLC | 1 | 1 | 0.42% | 0.42% | 0.42% | Q3 2014 | Q3 2014 | 1 |
| SPHERA FUNDS MANAGEMENT LTD. | 1 | 1 | 0.11% | 0.11% | 0.11% | Q3 2014 | Q3 2014 | 1 |
This page lists all the filers that currently own ALCOBRA LTD or have owned ALCOBRA LTD in the past.