UX — Roundhill ETF Trust Institutional Holders · Q2 2026
Who owns Roundhill ETF Trust (UX)? 5 institutions reported holding $3.55M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Citadel Advisors LLC ($2.5M), Jane Street Group, LLC ($948,766), Simplex Trading, LLC ($95,539).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $2.5M | 91,004 | Added |
| 2 | JANE STREET GROUP, LLC | $948,766 | 34,509 | Added |
| 3 | SIMPLEX TRADING, LLC | $95,539 | 3,475 | Trimmed |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 5 | Main Street Group, LTD | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30