171 institutions reported holding $94.3M of Opendoor Technologies Inc (OPENW) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($37.2M), IMC-Chicago, LLC ($29.5M), SIMPLEX TRADING, LLC ($12.2M), K2 PRINCIPAL FUND, L.P. ($7.5M), Caption Management, LLC ($1.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $37.2M | 8.0M | Trimmed |
| 2 | IMC-Chicago, LLC | $29.5M | 6.3M | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $12.2M | 3.8M | Trimmed |
| 4 | K2 PRINCIPAL FUND, L.P. | $7.5M | 150,012 | Trimmed |
| 5 | Caption Management, LLC | $1.4M | 3.6M | Trimmed |
| 6 | MORGAN STANLEY | $975,199 | 2.7M | Added |
| 7 | Lennar Corp /New/ | $680,052 | 1.9M | Hold |
| 8 | JANE STREET GROUP, LLC | $492,839 | 1.4M | Trimmed |
| 9 | HRT FINANCIAL LP | $483,000 | 231,569 | New |
| 10 | Kultura Capital Management LP | $407,673 | 48,999 | Hold |
| 11 | MILLENNIUM MANAGEMENT LLC | $305,908 | 844,765 | Trimmed |
| 12 | AMERICAN CENTURY COMPANIES INC | $292,947 | 482,614 | Trimmed |
| 13 | ARISTEIA CAPITAL, L.L.C. | $278,964 | 986,100 | Trimmed |
| 14 | Alight Capital Management LP | $272,070 | 450,000 | Added |
| 15 | Hudson Bay Capital Management LP | $182,005 | 361,992 | Trimmed |
| 16 | DeepCurrents Investment Group LLC | $173,898 | 37,158 | Hold |
| 17 | LMR Partners LLP | $154,306 | 296,739 | Added |
| 18 | STATE STREET CORP | $154,020 | 424,530 | Hold |
| 19 | Virtu Financial LLC | $123,000 | 513,792 | Added |
| 20 | Skaana Management L.P. | $115,390 | 469,067 | Trimmed |
| 21 | Ionic Capital Management LLC | $111,655 | 276,849 | Added |
| 22 | GEODE CAPITAL MANAGEMENT, LLC | $108,979 | 300,528 | Hold |
| 23 | Graham Capital Management, L.P. | $97,913 | 265,159 | Hold |
| 24 | KESTRA PRIVATE WEALTH SERVICES, LLC | $76,169 | 236,782 | Added |
| 25 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $72,559 | 199,998 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31