# EDGAR Filing Document

**Accession Number:** 0001579881
**File Stem:** 0001410368-26-067690
**Filing Date:** 2026-6
**Character Count:** 5207
**Document Hash:** 8a298f4bb59f531bb3cb3e9962c219dd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-067690.hdr.sgml**: 20260626

**ACCESSION NUMBER**: 0001410368-26-067690

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260430

**FILED AS OF DATE**: 20260626

**DATE AS OF CHANGE**: 20260626

**PERIOD START**: 20260731

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Calamos ETF Trust
- **CENTRAL INDEX KEY:** 0001579881

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-22887
- **FILM NUMBER:** 261128619

**BUSINESS ADDRESS:**
- **STREET 1:** 2020 CALAMOS COURT
- **CITY:** NAPERVILLE
- **STATE:** IL
- **ZIP:** 60563
- **BUSINESS PHONE:** 630-245-8394

**MAIL ADDRESS:**
- **STREET 1:** 2020 CALAMOS COURT
- **CITY:** NAPERVILLE
- **STATE:** IL
- **ZIP:** 60563

## Series and Classes Contracts Data

### Calamos Laddered Bitcoin Structured Alt Protection ETF (Series ID: S000095621)

| Class ID   | Class Name                                             | Ticker Symbol   |
|:---|:---|:---|
| C000264349 | Calamos Laddered Bitcoin Structured Alt Protection ETF |  |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** Calamos ETF Trust

- **b. Investment Company Act file number:** 811-22887

- **c. CIK number of Registrant:** 0001579881

- **d. LEI of Registrant:** 549300B2KP9WEFDULJ54

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 2020 CALAMOS COURT

  - **City:** NAPERVILLE

  - **State:** IL

  - **Foreign country:** US

  - **Zip / Postal Code:** 60563

  - **Telephone number:** 630-245-7200

**Item A.2. Information about the Series.**

- **a. Name of Series:** Calamos Laddered Bitcoin Structured Alt Protection ETF

- **b. EDGAR series identifier (if any):** S000095621

- **c. LEI of Series:** 529900F77E1ZLRZILU15

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2026-07-31

- **b. Date as of which information is reported:** 2026-04-30

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $2354452.56

**Total Liabilities:** $193.00

**Net Assets:** $2354259.56

**Cash Not Reported:** $4175.13

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000264349 | -1.93%               | 0.09%                | 0.60%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $-35914.30                                 |
| Month 2  | $0.00                    | $1571.29                                   |
| Month 3  | $0.00                    | $14568.71                                  |

### Schedule of Portfolio Investments

| Name                                                    | Title                                                   | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Calamos Bitcoin Structured Alt Protection ETF - July    | Calamos Bitcoin Structured Alt Protection ETF - July    | CUSIP: 12811T647<br>LEI: 529900IS11ZHWV6Y2032 | Long             | EC               | RF                | US        |     24460 | NS      | $596459.55    | 25.34%            |  |  |  | No            |                  1 | On Loan: No      |
| Calamos Bitcoin Structured Alt Protection ETF - January | Calamos Bitcoin Structured Alt Protection ETF - January | CUSIP: 12811T688<br>LEI: 5299001QS25T7PR5DC42 | Long             | EC               | RF                | US        |     23805 | NS      | $571429.50    | 24.27%            |  |  |  | No            |                  1 | On Loan: No      |
| Calamos Bitcoin Structured Alt Protection ETF - October | Calamos Bitcoin Structured Alt Protection ETF - October | CUSIP: 12811T613<br>LEI: 529900XQTGBBHJT8BJ09 | Long             | EC               | RF                | US        |     24997 | NS      | $610176.77    | 25.92%            |  |  |  | No            |                  1 | On Loan: No      |
| Calamos Bitcoin Structured Alt Protection ETF - April   | Calamos Bitcoin Structured Alt Protection ETF - April   | CUSIP: 12811T670<br>LEI: 5299004T0HM3EILLAF89 | Long             | EC               | RF                | US        |     23349 | NS      | $572211.61    | 24.31%            |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-06-11

**Name of Applicant:** Calamos ETF Trust

**Signature:** Stephen Atkins

**Name of Signer:** Stephen Atkins

**Title:** Treasurer