# Calamos S&P 500 Structured Alt Protection ETF - September

Calamos S&P 500 Structured Alt Protection ETF - September is a ETF series of Calamos ETF Trust (series S000084799). Net assets $32.4M as of 2026-04-30.

## Profile

- Series ID: S000084799
- Registrant: Calamos ETF Trust
- LEI: 529900J3C3QVJWPBSI56
- Net assets: $32.4M
- Total assets: $36.4M
- As of: 2026-04-30
- Type: ETF

## Advisers

- [Calamos Advisors LLC (Advisor)](https://search.stillhousedata.com/firm/105758)

## Top holdings (3 reported)

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| Goldman Sachs & Co. LLC | — | $34.5M | 10640.63% |
| Goldman Sachs & Co. LLC | — | $416K | 128.58% |
| Goldman Sachs & Co. LLC | — | $-2.6M | -798.41% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $32.4M |
| 2026-01-31 | $31.9M |
| 2025-10-31 | $31.6M |
| 2025-07-31 | $26.3M |
| 2025-04-30 | $24.6M |
| 2025-01-31 | $28.7M |
| 2024-10-31 | $27.7M |

## More

- [Registrant: Calamos ETF Trust](https://search.stillhousedata.com/registrant/1579881)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000084799.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.