12 institutions reported holding $1.47B of ROUNDHILL ETF TRUST CALL (KNGS) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($472.8M), GROUP ONE TRADING LLC ($404.1M), SIMPLEX TRADING, LLC ($261.1M), JPMORGAN CHASE & CO ($220.4M), Capital Markets Trading UK LLP ($46.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $472.8M | 6.4M | New |
| 2 | GROUP ONE TRADING LLC | $404.1M | 5.5M | Added |
| 3 | SIMPLEX TRADING, LLC | $261.1M | 3.6M | Added |
| 4 | JPMORGAN CHASE & CO | $220.4M | 3.1M | New |
| 5 | Capital Markets Trading UK LLP | $46.0M | 622,500 | New |
| 6 | HRT FINANCIAL LP | $43.8M | 593,200 | New |
| 7 | DV Trading LLC | $15.7M | 212,700 | New |
| 8 | CMT Capital Markets Trading GmbH | $5.5M | 75,000 | New |
| 9 | Marathon Trading Investment Management LLC | $1.4M | 19,400 | New |
| 10 | SG Americas Securities, LLC | $1.2M | 32,000 | New |
| 11 | Momentum Wealth Planning, LLC | $291,427 | 499 | New |
| 12 | RMG Wealth Management LLC | $3,288 | 60 | New |
Source: SEC Form 13F filings · as of 2026-06-30