11 institutions reported holding $844,241 of ETF OPPORTUNITIES TRUST (GMEU) in SEC 13F filings for 2026-03-31. Largest institutional holders: Belvedere Trading LLC ($254,832), Jump Financial, LLC ($211,188), CITADEL ADVISORS LLC ($210,933), Optiver Holding B.V. ($77,515), Triumph Capital Management ($45,295). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Belvedere Trading LLC | $254,832 | 25,008 | Added |
| 2 | Jump Financial, LLC | $211,188 | 20,725 | New |
| 3 | CITADEL ADVISORS LLC | $210,933 | 20,700 | Trimmed |
| 4 | Optiver Holding B.V. | $77,515 | 7,607 | Trimmed |
| 5 | Triumph Capital Management | $45,295 | 4,445 | Trimmed |
| 6 | UBS Group AG | $40,301 | 3,955 | Added |
| 7 | SIMPLEX TRADING, LLC | $2,313 | 227 | Added |
| 8 | SBI Securities Co., Ltd. | $1,039 | 102 | Hold |
| 9 | GROUP ONE TRADING LLC | $825 | 81 | Trimmed |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 11 | JANE STREET GROUP, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31