15 institutions reported holding $8.9M of TIDAL TRUST II (SMST) in SEC 13F filings for 2026-03-31. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($3.9M), CITADEL ADVISORS LLC ($1.4M), Optiver Holding B.V. ($1.4M), JANE STREET GROUP, LLC ($1.1M), HRT FINANCIAL LP ($559,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.9M | 59,930 | Added |
| 2 | CITADEL ADVISORS LLC | $1.4M | 21,900 | Trimmed |
| 3 | Optiver Holding B.V. | $1.4M | 21,858 | Added |
| 4 | JANE STREET GROUP, LLC | $1.1M | 17,098 | Trimmed |
| 5 | HRT FINANCIAL LP | $559,000 | 8,525 | New |
| 6 | FLOW TRADERS U.S. LLC | $356,000 | 5,434 | Trimmed |
| 7 | GROUP ONE TRADING LLC | $9,378 | 143 | New |
| 8 | Tower Research Capital LLC (TRC) | $5,837 | 89 | Trimmed |
| 9 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
| 10 | GTS SECURITIES LLC | $0 | 0 | Exited |
| 11 | Headlands Technologies LLC | $0 | 0 | Exited |
| 12 | Belvedere Trading LLC | $0 | 0 | Exited |
| 13 | Bank of New York Mellon Corp | $0 | 0 | Exited |
| 14 | UBS Group AG | $0 | 0 | Exited |
| 15 | Jump Financial, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31