OPEX — Investment Managers Ser Tr I Institutional Holders · Q2 2026
Who owns Investment Managers Ser Tr I (OPEX)? 5 institutions reported holding $248,740 in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Susquehanna International Group, LLP ($224,179), Group One Trading LLC ($19,437), Simplex Trading, LLC ($5,124).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $224,179 | 12,687 | New |
| 2 | GROUP ONE TRADING LLC | $19,437 | 1,100 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $5,124 | 290 | New |
| 4 | CITADEL ADVISORS LLC | $0 | 0 | Exited |
| 5 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30