10 institutions reported holding $28.3M of ROUNDHILL ETF TRUST (AMDW) in SEC 13F filings for 2026-06-30. Largest institutional holders: EXCHANGE TRADED CONCEPTS, LLC ($9.8M), CITADEL ADVISORS LLC ($9.6M), Belvedere Trading LLC ($7.1M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($911,370), HRT FINANCIAL LP ($635,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | EXCHANGE TRADED CONCEPTS, LLC | $9.8M | 85,667 | New |
| 2 | CITADEL ADVISORS LLC | $9.6M | 83,300 | New |
| 3 | Belvedere Trading LLC | $7.1M | 61,600 | New |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $911,370 | 7,936 | New |
| 5 | HRT FINANCIAL LP | $635,000 | 5,534 | New |
| 6 | GROUP ONE TRADING LLC | $222,330 | 1,936 | New |
| 7 | UBS Group AG | $15,389 | 134 | Added |
| 8 | TD Waterhouse Canada Inc. | $5,742 | 50 | Hold |
| 9 | OLD MISSION CAPITAL LLC | $0 | 0 | Exited |
| 10 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30