16 institutions reported holding $20.5M of TIDAL TRUST II (IONX) in SEC 13F filings for 2026-06-30. Largest institutional holders: CITADEL ADVISORS LLC ($4.7M), Belvedere Trading LLC ($4.6M), JANE STREET GROUP, LLC ($2.3M), StoneX Group Inc. ($2.1M), RENAISSANCE TECHNOLOGIES LLC ($1.9M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $4.7M | 93,089 | Added |
| 2 | Belvedere Trading LLC | $4.6M | 258,800 | Added |
| 3 | JANE STREET GROUP, LLC | $2.3M | 44,855 | Added |
| 4 | StoneX Group Inc. | $2.1M | 25,573 | Added |
| 5 | RENAISSANCE TECHNOLOGIES LLC | $1.9M | 37,100 | Added |
| 6 | UBS Group AG | $1.6M | 31,716 | Hold |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.5M | 29,397 | New |
| 8 | GROUP ONE TRADING LLC | $546,993 | 10,757 | Trimmed |
| 9 | HRT FINANCIAL LP | $415,000 | 8,177 | Trimmed |
| 10 | GOLDMAN SACHS GROUP INC | $326,406 | 6,419 | New |
| 11 | MYDA Advisors LLC | $254,250 | 5,000 | New |
| 12 | UMB BANK N A/MO | $101,700 | 2,000 | New |
| 13 | Optiver Holding B.V. | $69,868 | 1,374 | New |
| 14 | Tower Research Capital LLC (TRC) | $6,509 | 128 | Trimmed |
| 15 | Jump Financial, LLC | $0 | 0 | Exited |
| 16 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30