18 institutions reported holding $7.5M of CALAMOS ETF TR (CBOJ) in SEC 13F filings for 2026-06-30. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($3.5M), HARBOUR INVESTMENTS, INC. ($846,588), EVEXIA WEALTH LLC ($781,700), Calamos Advisors LLC ($581,709), Markin Asset Management, LP ($353,478). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.5M | 146,681 | Added |
| 2 | HARBOUR INVESTMENTS, INC. | $846,588 | 35,978 | Added |
| 3 | EVEXIA WEALTH LLC | $781,700 | 33,011 | Added |
| 4 | Calamos Advisors LLC | $581,709 | 24,722 | Added |
| 5 | Markin Asset Management, LP | $353,478 | 15,022 | Trimmed |
| 6 | PFG Advisors | $350,607 | 14,900 | Added |
| 7 | ATX Financial Planning, LLC | $343,235 | 14,587 | Trimmed |
| 8 | JANE STREET GROUP, LLC | $310,111 | 13,179 | New |
| 9 | Sigma Planning Corp | $201,705 | 8,572 | Hold |
| 10 | Ankerstar Wealth, LLC | $190,505 | 8,096 | Trimmed |
| 11 | CENTAURUS FINANCIAL, INC. | $103,000 | 4,392 | Hold |
| 12 | Capital Investment Advisory Services, LLC | $25,120 | 1,068 | New |
| 13 | UBS Group AG | $5,412 | 230 | New |
| 14 | Farther Finance Advisors, LLC | $3,882 | 165 | Hold |
| 15 | DHJJ Financial Advisors, Ltd. | $189 | 8 | Hold |
| 16 | OLD MISSION CAPITAL LLC | $0 | 0 | Exited |
| 17 | Moors & Cabot, Inc. | $0 | 0 | Exited |
| 18 | GOLDMAN SACHS GROUP INC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30