| # | % | |||||
|---|---|---|---|---|---|---|
| 1 | PEAK6 Group LLC | 84,900 | 16,047,000 | 94.86% | Call | |
| 2 | GROUP ONE TRADING LLC | 4,600 | 869,000 | 5.14% | 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.
