14 institutions reported holding $2.3M of ROUNDHILL ETF TRUST (PLTW) in SEC 13F filings for 2026-03-31. Largest institutional holders: CITADEL ADVISORS LLC ($1.4M), JANE STREET GROUP, LLC ($598,496), GROUP ONE TRADING LLC ($286,948), CoreCap Advisors, LLC ($25,233), OSAIC HOLDINGS, INC. ($21,275). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $1.4M | 53,400 | Trimmed |
| 2 | JANE STREET GROUP, LLC | $598,496 | 23,600 | New |
| 3 | GROUP ONE TRADING LLC | $286,948 | 11,315 | Added |
| 4 | CoreCap Advisors, LLC | $25,233 | 995 | Trimmed |
| 5 | OSAIC HOLDINGS, INC. | $21,275 | 837 | Added |
| 6 | Farther Finance Advisors, LLC | $6,579 | 259 | Hold |
| 7 | HARBOUR INVESTMENTS, INC. | $3,469 | 136 | Added |
| 8 | Tower Research Capital LLC (TRC) | $2,358 | 93 | New |
| 9 | GTS SECURITIES LLC | $0 | 0 | Exited |
| 10 | Wellington Grp LLC | $0 | 0 | Exited |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 12 | EXCHANGE TRADED CONCEPTS, LLC | $0 | 0 | Exited |
| 13 | UBS Group AG | $0 | 0 | Exited |
| 14 | Atlantic Union Bankshares Corp | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31