CPXR — Tidal Trust III Institutional Holders · Q2 2026
Who owns Tidal Trust III (CPXR)? 7 institutions reported holding $2.19M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Susquehanna International Group, LLP ($616,176), Citadel Advisors LLC ($599,193), Flow Traders U.S. LLC ($439,000).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $616,176 | 21,189 | Trimmed |
| 2 | CITADEL ADVISORS LLC | $599,193 | 20,605 | Trimmed |
| 3 | FLOW TRADERS U.S. LLC | $439,000 | 15,082 | Trimmed |
| 4 | Belvedere Trading LLC | $308,422 | 10,606 | New |
| 5 | SIMPLEX TRADING, LLC | $228,045 | 7,842 | Added |
| 6 | Bank of New York Mellon Corp | $0 | 0 | Exited |
| 7 | HRT FINANCIAL LP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30