# CALAMOS ETF TR S P 500 STRUCTUR

CALAMOS ETF TR S P 500 STRUCTUR is a security (CUSIP 12811T605) tracked across SEC portfolio filings. 32 institutional managers reported $25.0M on Form 13F as of 2026-06-30.

## Summary

- Issuer: CALAMOS ETF TR
- Class: S P 500 STRUCTUR
- CUSIP: 12811T605
- 13F holders: 32
- 13F value: $25.0M
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

_Showing 15 of 32 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [Calamos Advisors LLC](https://search.stillhousedata.com/firm/105758) | NAPERVILLE, IL | $9.6M | 327,705 |
| Amplius Wealth Advisors, LLC | BLUE BELL, PA | $2.2M | 73,632 |
| Advisory Services Network, LLC | Atlanta, GA | $1.5M | 51,623 |
| [Grantvest Financial Group LLC](https://search.stillhousedata.com/firm/310272) | MATAWAN, NJ | $1.2M | 41,820 |
| [Sugar Maple Asset Management, LLC](https://search.stillhousedata.com/firm/282632) | SISTER BAY, WI | $1.1M | 39,000 |
| [COMMONWEALTH EQUITY SERVICES, LLC](https://search.stillhousedata.com/firm/8032) | WALTHAM, MA | $1.1M | 38,800 |
| [BCGM Wealth Management, LLC](https://search.stillhousedata.com/firm/306757) | LAFAYETTE, IN | $1.0M | 35,650 |
| [Cetera Investment Advisers](https://search.stillhousedata.com/firm/105644) | SCHAUMBURG, IL | $996K | 34,531 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $728K | 25,288 |
| [OLD MISSION CAPITAL LLC](https://search.stillhousedata.com/firm/146991) | CHICAGO, IL | $690K | 23,905 |
| [LPL Financial LLC](https://search.stillhousedata.com/firm/6413) | FORT MILL, SC | $600K | 20,506 |
| [Calamos Wealth Management LLC](https://search.stillhousedata.com/firm/143490) | NAPERVILLE, IL | $573K | 19,585 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $534K | 18,515 |
| [HARBOUR INVESTMENTS, INC.](https://search.stillhousedata.com/firm/19258) | MADISON, WI | $481K | 16,652 |
| [Blue Water Asset Management](https://search.stillhousedata.com/firm/175362) | GRAND RAPIDS, MI | $467K | 15,962 |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/12811T605.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.