# CALAMOS ETF TR (CBOA)

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

- Reporting holders: 4
- Reported value: $2.8M
- 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 |
|---|---|---|---|---|
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $1.6M | 67,443 | 0.0% | 5 |
| [OLD MISSION CAPITAL LLC](https://holderbook.com/funds/1455915-old-mission-capital-llc/) | $635.5K | 26,563 | 0.0% | 4 |
| [Calamos Advisors LLC](https://holderbook.com/funds/1316507-calamos-advisors-llc/) | $579.8K | 24,240 | 0.0% | 3 |
| [Ankerstar Wealth, LLC](https://holderbook.com/funds/2053917-ankerstar-wealth-llc/) | $3.4K | 144 | 0.0% | 3 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 4 | $2.8M |
| Q1 2026 | 5 | $3.1M |
| Q4 2025 | 8 | $3.6M |
| Q3 2025 | 6 | $3.5M |
| Q2 2025 | 7 | $4.6M |