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

Calamos S&P 500 Structured Alt Protection ETF - October is a ETF series of Calamos ETF Trust (series S000086986). Net assets $26.2M as of 2026-04-30.

## Profile

- Series ID: S000086986
- Registrant: Calamos ETF Trust
- LEI: 529900FD0RPBHLDV4K79
- Net assets: $26.2M
- Total assets: $29.0M
- 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 | — | $27.2M | 10371.18% |
| Goldman Sachs & Co. LLC | — | $539K | 205.64% |
| Goldman Sachs & Co. LLC | — | $-1.6M | -609.58% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $26.2M |
| 2026-01-31 | $25.9M |
| 2025-10-31 | $25.6M |
| 2025-07-31 | $17.8M |
| 2025-04-30 | $15.9M |
| 2025-01-31 | $22.5M |
| 2024-10-31 | $26.6M |

## More

- [Registrant: Calamos ETF Trust](https://search.stillhousedata.com/registrant/1579881)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000086986.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.