12 institutions reported holding $3.3M of THEMES ETF TR (ECHX) in SEC 13F filings for 2026-06-30. Largest institutional holders: Virtu Financial LLC ($1.1M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($1.1M), CITADEL ADVISORS LLC ($317,578), JANE STREET GROUP, LLC ($210,878), FLOW TRADERS U.S. LLC ($167,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Virtu Financial LLC | $1.1M | 104,849 | New |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.1M | 103,006 | Added |
| 3 | CITADEL ADVISORS LLC | $317,578 | 29,216 | New |
| 4 | JANE STREET GROUP, LLC | $210,878 | 19,400 | New |
| 5 | FLOW TRADERS U.S. LLC | $167,000 | 15,397 | New |
| 6 | Belvedere Trading LLC | $165,224 | 15,200 | New |
| 7 | SBI Securities Co., Ltd. | $74,546 | 6,858 | New |
| 8 | SIMPLEX TRADING, LLC | $28,403 | 2,613 | Added |
| 9 | Parallel Advisors, LLC | $25,001 | 2,300 | New |
| 10 | Optiver Holding B.V. | $13,327 | 1,226 | Trimmed |
| 11 | HOLLENCREST CAPITAL MANAGEMENT | $0 | 0 | Exited |
| 12 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30