12 institutions reported holding $5.6M of ETF OPPORTUNITIES TRUST (SPAX) in SEC 13F filings for 2026-06-30. Largest institutional holders: Jump Financial, LLC ($1.2M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($848,141), Optiver Holding B.V. ($838,867), JANE STREET GROUP, LLC ($746,935), CITADEL ADVISORS LLC ($646,517). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Jump Financial, LLC | $1.2M | 77,170 | New |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $848,141 | 54,967 | New |
| 3 | Optiver Holding B.V. | $838,867 | 54,366 | New |
| 4 | JANE STREET GROUP, LLC | $746,935 | 48,408 | New |
| 5 | CITADEL ADVISORS LLC | $646,517 | 41,900 | New |
| 6 | SIMPLEX TRADING, LLC | $486,245 | 21,024 | New |
| 7 | SBI Securities Co., Ltd. | $331,020 | 21,453 | New |
| 8 | Scientech Research LLC | $249,765 | 16,187 | New |
| 9 | HRT FINANCIAL LP | $166,000 | 10,822 | New |
| 10 | GROUP ONE TRADING LLC | $52,671 | 4,000 | New |
| 11 | NBC SECURITIES, INC. | $3,086 | 200 | New |
| 12 | UBS Group AG | $1,481 | 96 | New |
Source: SEC Form 13F filings · as of 2026-06-30