| # | % | |||||
|---|---|---|---|---|---|---|
| 1 | PEAK6 Group LLC | 590,236 | 7,697,000 | 52.18% | Call | |
| 2 | Timber Hill LLC | 283,864 | 3,702,000 | 25.09% | Call | |
| 3 | GROUP ONE TRADING LLC | 236,100 | 3,079,000 | 20.87% | Call | |
| 4 | Virtu KCG Holdings LLC | 21,000 | 274,000 | 1.86% | Call |
From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.
