17 institutions reported holding $74.1M of ETF OPPORTUNITIES TRUST (SNDU) in SEC 13F filings for 2026-06-30. Largest institutional holders: CITADEL ADVISORS LLC ($32.7M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($15.1M), JANE STREET GROUP, LLC ($8.3M), Belvedere Trading LLC ($5.8M), SBI Securities Co., Ltd. ($4.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $32.7M | 481,423 | New |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $15.1M | 222,128 | New |
| 3 | JANE STREET GROUP, LLC | $8.3M | 122,267 | New |
| 4 | Belvedere Trading LLC | $5.8M | 84,900 | New |
| 5 | SBI Securities Co., Ltd. | $4.1M | 59,995 | New |
| 6 | HERITAGE OAK WEALTH ADVISORS LLC | $1.4M | 20,000 | New |
| 7 | Atlatl Advisers LLC | $1.4M | 20,000 | New |
| 8 | Optiver Holding B.V. | $1.3M | 19,246 | New |
| 9 | StoneX Group Inc. | $1.2M | 17,220 | New |
| 10 | INDEPENDENT FINANCIAL GROUP, LLC | $1.1M | 15,575 | New |
| 11 | UBS Group AG | $864,045 | 12,729 | New |
| 12 | HRT FINANCIAL LP | $516,000 | 7,604 | New |
| 13 | TWO SIGMA SECURITIES, LLC | $264,121 | 3,891 | New |
| 14 | SIMPLEX TRADING, LLC | $259,776 | 3,827 | New |
| 15 | GROUP ONE TRADING LLC | $11,472 | 169 | New |
| 16 | Tower Research Capital LLC (TRC) | $9,164 | 135 | New |
| 17 | SIGNATUREFD, LLC | $339 | 5 | New |
Source: SEC Form 13F filings · as of 2026-06-30