# Calamos Russell 2000 Structured Alt Protection ETF - April — new fund registration

Calamos ETF Trust registered 4 new fund series on Form 485APOS, filed 2024-04-12. Featured series: Calamos Russell 2000 Structured Alt Protection ETF - April.

## Registration

- Registrant / trust: Calamos ETF Trust
- CIK: 0001579881
- Form: 485APOS
- Filed: 2024-04-12
- State of incorporation: DE
- Accession: 0001104659-24-046728
- Reported net assets: $10.3M

## Series & classes (4)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Calamos Russell 2000 Structured Alt Protection ETF - April](https://search.stillhousedata.com/fund/S000085629) | Calamos Capital Protected Russell 2000 ETF - April | — | Yes |
| [Calamos Russell 2000 Structured Alt Protection ETF - January](https://search.stillhousedata.com/fund/S000085630) | Calamos Capital Protected Russell 2000 ETF - January | — | Yes |
| [Calamos Russell 2000 Structured Alt Protection ETF - July](https://search.stillhousedata.com/fund/S000085631) | Calamos Capital Protected Russell 2000 ETF - July | — | Yes |
| [Calamos Russell 2000 Structured Alt Protection ETF - October](https://search.stillhousedata.com/fund/S000085632) | Calamos Capital Protected Russell 2000 ETF - October | — | Yes |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.69%
- Management fee: 0.69%
- Net expense ratio: 0.69%
- Other expenses: 0.00%

## Investment objective

Calamos Russell 2000 ? Structured Alt Protection ETF ? April (the "Fund") seeks to provide investment results that, before taking fees and expenses into account, match the positive price return of the iShares ? Russell2000 ? ETF ("Underlying ETF") up to a cap of 9.42% (the "Cap"), while protecting against 100% of negative price return of the Underlying ETF (before fees and expenses), for the period from April 1, 2025 through March 31, 2026.

## Advisers

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

## Other filings by this registrant (15)

- [485APOS — 2026-07-31 (1 new series)](https://search.stillhousedata.com/launch/0001104659-26-089292)
- [485APOS — 2026-07-31 (1 new series)](https://search.stillhousedata.com/launch/0001104659-26-089180)
- [485APOS — 2026-04-07 (1 new series)](https://search.stillhousedata.com/launch/0001104659-26-040498)
- [485APOS — 2026-04-07 (1 new series)](https://search.stillhousedata.com/launch/0001104659-26-040487)
- [485APOS — 2026-01-28 (1 new series)](https://search.stillhousedata.com/launch/0001104659-26-007366)
- [485APOS — 2026-01-28 (1 new series)](https://search.stillhousedata.com/launch/0001104659-26-007375)
- [485APOS — 2025-09-29](https://search.stillhousedata.com/launch/0001104659-25-094377)
- [485APOS — 2025-09-29](https://search.stillhousedata.com/launch/0001104659-25-094378)
- [485APOS — 2025-09-29](https://search.stillhousedata.com/launch/0001104659-25-094374)
- [485APOS — 2025-09-29](https://search.stillhousedata.com/launch/0001104659-25-094376)
- [485APOS — 2025-08-22 (1 new series)](https://search.stillhousedata.com/launch/0001104659-25-081943)
- [485APOS — 2025-08-20](https://search.stillhousedata.com/launch/0001104659-25-080971)

## More

- [Registrant profile: Calamos ETF Trust](https://search.stillhousedata.com/registrant/1579881)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001104659-24-046728.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.