4 institutions reported holding $441,887 of GRANITESHARES ETF TR YIELDBOOST (IOYY) in SEC 13F filings for 2026-06-30. Largest institutional holders: JANE STREET GROUP, LLC ($338,911), StoneX Group Inc. ($102,976), Tower Research Capital LLC (TRC) ($0), UBS Group AG ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLC | $338,911 | 41,180 | Trimmed |
| 2 | StoneX Group Inc. | $102,976 | 11,740 | New |
| 3 | Tower Research Capital LLC (TRC) | $0 | 0 | Exited |
| 4 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30