# CALAMOS ETF TR (CBOY)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/CBOY/

- Reporting holders: 9
- Reported value: $4.0M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](https://holderbook.com/funds/1446194-susquehanna-international-group-llp/) | $1.2M | 50,111 | 0.0% | 4 |
| [Cambridge Investment Research Advisors, Inc.](https://holderbook.com/funds/1419186-cambridge-investment-research-advisors-inc/) | $624.0K | 25,446 | 0.0% | 4 |
| [Calamos Advisors LLC](https://holderbook.com/funds/1316507-calamos-advisors-llc/) | $584.7K | 23,874 | 0.0% | 3 |
| [ATX Financial Planning, LLC](https://holderbook.com/funds/2111013-atx-financial-planning-llc/) | $424.6K | 17,336 | 0.3% | 3 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $403.9K | 16,493 | 0.0% | 4 |
| [Markin Asset Management, LP](https://holderbook.com/funds/2110806-markin-asset-management-lp/) | $358.8K | 14,651 | 0.3% | 3 |
| [Advus Financial Partners, LLC](https://holderbook.com/funds/2150676-advus-financial-partners-llc/) | $224.2K | 9,155 | 0.1% | 1 |
| [HARBOUR INVESTMENTS, INC.](https://holderbook.com/funds/810121-harbour-investments-inc/) | $162.7K | 6,644 | 0.0% | 4 |
| [Ankerstar Wealth, LLC](https://holderbook.com/funds/2053917-ankerstar-wealth-llc/) | $6.1K | 249 | 0.0% | 3 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 9 | $4.0M |
| Q1 2026 | 9 | $3.5M |
| Q4 2025 | 9 | $4.5M |
| Q3 2025 | 7 | $2.6M |