16 institutions reported holding $6.4M of ETF OPPORTUNITIES TRUST (TSLT) in SEC 13F filings for 2026-03-31. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($3.1M), CITADEL ADVISORS LLC ($1.2M), Sloy Dahl & Holst, LLC ($532,890), RENAISSANCE TECHNOLOGIES LLC ($472,878), UBS Group AG ($423,090). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.1M | 182,500 | Trimmed |
| 2 | CITADEL ADVISORS LLC | $1.2M | 71,900 | Trimmed |
| 3 | Sloy Dahl & Holst, LLC | $532,890 | 31,328 | Hold |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $472,878 | 27,800 | New |
| 5 | UBS Group AG | $423,090 | 24,873 | Added |
| 6 | Optiver Holding B.V. | $329,402 | 19,360 | Added |
| 7 | Belvedere Trading LLC | $261,954 | 15,400 | New |
| 8 | Tower Research Capital LLC (TRC) | $4,031 | 237 | Added |
| 9 | Main Street Group, LTD | $170 | 10 | New |
| 10 | SITTNER & NELSON, LLC | $103 | 6 | Hold |
| 11 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
| 12 | Quadcap Wealth Management, LLC | $0 | 0 | Exited |
| 13 | GROUP ONE TRADING LLC | $0 | 0 | Exited |
| 14 | OLD MISSION CAPITAL LLC | $0 | 0 | Exited |
| 15 | SBI Securities Co., Ltd. | $0 | 0 | Exited |
| 16 | StoneX Group Inc. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31