| # | % | |||||
|---|---|---|---|---|---|---|
| 1 | Van Berkom & Associates Inc. | 1,811,529 | 35,669,000 | 87.80% | ||
| 2 | Timber Hill LLC | 112,600 | 2,217,000 | 5.46% | Call | |
| 3 | GROUP ONE TRADING LLC | 88,300 | 1,739,000 | 4.28% | Call | |
| 4 | CITADEL ADVISORS LLC | 48,900 | 963,000 | 2.37% | Call | |
| 5 | SIMPLEX TRADING, LLC | 250 | 36,000 | 0.09% | 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.