7 institutions reported holding $670,787 of ETF OPPORTUNITIES TRUST (TTDU) in SEC 13F filings for 2026-06-30. Largest institutional holders: Optiver Holding B.V. ($398,682), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($108,125), CITADEL ADVISORS LLC ($78,256), StoneX Group Inc. ($43,943), TWO SIGMA SECURITIES, LLC ($41,781). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Optiver Holding B.V. | $398,682 | 148,762 | Added |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $108,125 | 40,345 | Trimmed |
| 3 | CITADEL ADVISORS LLC | $78,256 | 29,200 | Added |
| 4 | StoneX Group Inc. | $43,943 | 12,046 | New |
| 5 | TWO SIGMA SECURITIES, LLC | $41,781 | 15,590 | New |
| 6 | Tower Research Capital LLC (TRC) | $0 | 0 | Exited |
| 7 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30