| 1 | Optiver Holding B.V. | $1.01B | 8.9M | Added |
| 2 | IMC-Chicago, LLC | $693.5M | 6.1M | Trimmed |
| 3 | CMT Capital Markets Trading GmbH | $500.5M | 4.4M | Added |
| 4 | Assenagon Asset Management S.A. | $426.4M | 3.8M | Trimmed |
| 5 | SIMPLEX TRADING, LLC | $374.3M | 3.3M | Trimmed |
| 6 | JPMORGAN CHASE & CO | $369.6M | 3.4M | Trimmed |
| 7 | GROUP ONE TRADING LLC | $163.0M | 1.4M | Trimmed |
| 8 | HRT FINANCIAL LP | $45.0M | 396,400 | Added |
| 9 | SG Americas Securities, LLC | $28.4M | 3.0M | Added |
| 10 | Capital Markets Trading UK LLP | $21.1M | 186,400 | Trimmed |
| 11 | RH Tailwind Management, LLC | $20.4M | 180,000 | Trimmed |
| 12 | Maven Securities LTD | $9.3M | 81,900 | Added |
| 13 | EVERETT HARRIS & CO /CA/ | $3.1M | 3.1M | Hold |
| 14 | CenterStar Asset Management, LLC | $2.8M | 24,400 | New |
| 15 | Chancellor Financial Group WB LP | $1.3M | 246 | Trimmed |
| 16 | SUMMIT SECURITIES GROUP LLC | $396,935 | 3,500 | New |
| 17 | Citadel Investment Advisory, Inc. | $281,000 | 3,297 | Trimmed |
| 18 | Estabrook Capital Management | $135,575 | 5,500 | New |
| 19 | Byrne Asset Management LLC | $131,163 | 7,444 | Added |
| 20 | CFG Wealth Management Services, Inc. | $19,825 | 20,000 | Hold |
| 21 | Financial Gravity Asset Management, Inc. | $12,564 | 12,000 | Hold |
| 22 | PNC Financial Services Group, Inc. | $11,881 | 482 | New |
| 23 | OSAIC HOLDINGS, INC. | $11,341 | 100 | Added |
| 24 | Tennessee Valley Asset Management Partners | $10,884 | 4 | Hold |
| 25 | First Command Advisory Services, Inc. | $7,247 | 294 | New |