# EDGAR Filing Document

**Accession Number:** 0001579881
**File Stem:** 0001410368-26-034379
**Filing Date:** 2026-3
**Character Count:** 5181
**Document Hash:** 299d99f35a9cc8c1c952001ba26752d6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-034379.hdr.sgml**: 20260331

**ACCESSION NUMBER**: 0001410368-26-034379

**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:** 26820690

**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 Bitcoin 90 Series Structured Alt Protection ETF - July (Series ID: S000090066)

| Class ID   | Class Name                                                     | Ticker Symbol   |
|:---|:---|:---|
| C000256943 | Calamos Bitcoin 90 Series Structured Alt Protection ETF - July |  |

## 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 Bitcoin 90 Series Structured Alt Protection ETF - July

- **b. EDGAR series identifier (if any):** S000090066

- **c. LEI of Series:** 529900GY5CNX3HHUOU60

**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:** $10415026.87

**Total Liabilities:** $1287974.95

**Net Assets:** $9127051.92

**Cash Not Reported:** $23308.96

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000256943 | -5.96%               | -1.23%               | -1.68%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $193.00                  | $1206.80                                   |
| Month 2  | $81.38                   | $3126.45                                   |
| Month 3  | $11.12                   | $-8539.29                                  |

**Designated Index Information**

- **Index Name:** iShare Bitcoin Trust ETF (IBIT)

- **Index Identifier:** iShare Bitcoin Trust ETF (IBIT)

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| United States Treasury | U.S. Treasury Bills   | CUSIP: 912797RF6<br>LEI: 254900HROIFWPRGM1V77 | Long             | STIV             | UST               | US        |   8826900 | PA      | $8691131.60   | 95.22%            | 2026-07-09      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| BofA Securities, Inc.  | 4MBTX 260707 C 231.75 | CUSIP: 000000000<br>LEI: 549300HN4UKV1E2R3U73 | N/A              | DE               |  | US        |       388 | NC      | $515302.06    | 5.65%             |  |  |  | No            |                  2 | On Loan: No      |
| BofA Securities, Inc.  | 4MBTX 260707 C 321.10 | CUSIP: 000000000<br>LEI: 549300HN4UKV1E2R3U73 | N/A              | DE               |  | US        |      -388 | NC      | $-97210.45    | -1.07%            |  |  |  | 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