# EDGAR Filing Document

**Accession Number:** 0001579881
**File Stem:** 0001410368-26-034398
**Filing Date:** 2026-3
**Character Count:** 4695
**Document Hash:** cb0339189963b2a2a147c3fe9e463ee9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-034398.hdr.sgml**: 20260331

**ACCESSION NUMBER**: 0001410368-26-034398

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260131

**FILED AS OF DATE**: 20260331

**DATE AS OF CHANGE**: 20260331

**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:** 26820713

**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 Russell 2000 Structured Alt Protection ETF - January (Series ID: S000085630)

| Class ID   | Class Name                                                   | Ticker Symbol   |
|:---|:---|:---|
| C000250959 | Calamos Russell 2000 Structured Alt Protection ETF - January |  |

## 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 Russell 2000 Structured Alt Protection ETF - January

- **b. EDGAR series identifier (if any):** S000085630

- **c. LEI of Series:** 5299003GK0IP48HRWL32

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

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

- **b. Date as of which information is reported:** 2026-01-31

**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:** $60486491.00

**Total Liabilities:** $7909480.30

**Net Assets:** $52577010.70

**Cash Not Reported:** $383008.77

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000250959 | 1.06%                | 1.50%                | 1.22%                |

**Monthly Gains & Losses**

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

**Designated Index Information**

- **Index Name:** iShares Russell 2000 ETF BM

- **Index Identifier:** iShares Russell 2000 ETF BM

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Goldman Sachs & Co. LLC | 4IWM 261231 C 1.70   | CUSIP: 000000000<br>LEI: FOR8UP27PHTHYVLBNG30 | N/A              | DE               |  | US        |      2109 | NC      | $53979832.86  | 102.67%           |  |  |  | No            |                  2 | On Loan: No      |
| Goldman Sachs & Co. LLC | 4IWM 261231 C 264.65 | CUSIP: 000000000<br>LEI: FOR8UP27PHTHYVLBNG30 | N/A              | DE               |  | US        |     -2109 | NC      | $-4730429.21  | -9.00%            |  |  |  | No            |                  2 | On Loan: No      |
| Goldman Sachs & Co. LLC | 4IWM 261231 P 246.16 | CUSIP: 000000000<br>LEI: FOR8UP27PHTHYVLBNG30 | N/A              | DE               |  | US        |      2109 | NC      | $2976154.79   | 5.66%             |  |  |  | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2026-02-20

**Name of Applicant:** Calamos ETF Trust

**Signature:** Stephen Atkins

**Name of Signer:** Stephen Atkins

**Title:** Treasurer