# EDGAR Filing Document

**Accession Number:** 0001579881
**File Stem:** 0001410368-25-012712
**Filing Date:** 2025-9
**Character Count:** 20775
**Document Hash:** 029a80477ba6fe743e0597a503299a5c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-012712.hdr.sgml**: 20250929

**ACCESSION NUMBER**: 0001410368-25-012712

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250731

**FILED AS OF DATE**: 20250929

**DATE AS OF CHANGE**: 20250929

**PERIOD START**: 20250731

**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:** 251352748

**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 CEF Income & Arbitrage ETF (Series ID: S000083148)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000246662 | Calamos CEF Income & Arbitrage 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 CEF Income & Arbitrage ETF

- **b. EDGAR series identifier (if any):** S000083148

- **c. LEI of Series:** 529900OKGDHB8Q1U7716

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

- **a. Date of fiscal year-end:** 2025-07-31

- **b. Date as of which information is reported:** 2025-07-31

**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:** $17823513.58

**Total Liabilities:** $10788.45

**Net Assets:** $17812725.13

**Cash Not Reported:** $176541.24

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000246662 | 3.50%                | 3.53%                | 0.81%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-68094.55               | $499883.47                                 |
| Month 2  | $1244.27                 | $443387.51                                 |
| Month 3  | $757.18                  | $24699.90                                  |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| DoubleLine Yield Opportunities Fund                           | DoubleLine Yield Opportunities Fund                           | CUSIP: 25862D105<br>LEI: 5493006BIH94Q4VHHG23 | Long             | EC               | RF                | US        |     22011 | NS      | $338749.29    | 1.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Tax-Managed Global Diversified Equity Income Fund | Eaton Vance Tax-Managed Global Diversified Equity Income Fund | CUSIP: 27829F108<br>LEI: 5493002EIY4NK3I3E865 | Long             | EC               | RF                | US        |     60982 | NS      | $533592.50    | 3.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Core Equity Alpha Fund                                 | Nuveen Core Equity Alpha Fund                                 | CUSIP: 67090X107<br>LEI: RXOICX8BWX0J6XOHJ530 | Long             | EC               | RF                | US        |     11661 | NS      | $179812.62    | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Aberdeen Asia-Pacific Income Fund Inc                         | Aberdeen Asia-Pacific Income Fund Inc                         | CUSIP: 003009867<br>LEI: 549300J666ZH67203572 | Long             | EC               | RF                | US        |     10606 | NS      | $170862.66    | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| John Hancock Tax-Advantaged Dividend Income Fund              | John Hancock Tax-Advantaged Dividend Income Fund              | CUSIP: 41013V100<br>LEI: 5493001RMBJ8FL02CN30 | Long             | EC               | RF                | US        |     24400 | NS      | $592188.00    | 3.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Neuberger Berman Real Estate Securities Income Fund Inc       | Neuberger Berman Real Estate Securities Income Fund Inc       | CUSIP: 64190A103<br>LEI: 549300WU72ZN21PNWQ56 | Long             | EC               | RF                | US        |    147110 | NS      | $473694.20    | 2.66%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Enhanced Equity Dividend Trust                      | BlackRock Enhanced Equity Dividend Trust                      | CUSIP: 09251A104<br>LEI: G737UEA5SJ50G32LUQ88 | Long             | EC               | RF                | US        |     49700 | NS      | $438851.00    | 2.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Thornburg Income Builder Opportunities Trust                  | Thornburg Income Builder Opportunities Trust                  | CUSIP: 885213108<br>LEI: 5493002O2SJJPEDP7413 | Long             | EC               | RF                | US        |     12258 | NS      | $239398.74    | 1.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Bexil Investment Trust                                        | Bexil Investment Trust                                        | CUSIP: 25538A204<br>LEI: 549300GQF37VFS5FKW75 | Long             | EC               | RF                | US        |     54533 | NS      | $745466.11    | 4.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Senior Income Trust                               | Eaton Vance Senior Income Trust                               | CUSIP: 27826S103<br>LEI: F34RFVU0FGX8OM0KE928 | Long             | EC               | RF                | US        |     61808 | NS      | $347360.96    | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Flaherty & Crumrine Preferred and Income Securities Fund      | Flaherty & Crumrine Preferred and Income Securities Fund      | CUSIP: 338478100<br>LEI: 254900A8P8RQUXES1M50 | Long             | EC               | RF                | US        |     22773 | NS      | $372110.82    | 2.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Reaves Utility Income Fund                                    | Reaves Utility Income Fund                                    | CUSIP: 756158101<br>LEI: 549300GS807NR3X3LH36 | Long             | EC               | RF                | US        |     10660 | NS      | $408064.80    | 2.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Senior Floating-Rate Trust                        | Eaton Vance Senior Floating-Rate Trust                        | CUSIP: 27828Q105<br>LEI: VJXUJZ1EC079NQ236240 | Long             | EC               | RF                | US        |     28295 | NS      | $337276.40    | 1.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Kayne Anderson Energy Infrastructure Fund                     | Kayne Anderson Energy Infrastructure Fund                     | CUSIP: 486606106<br>LEI: 549300H9ZCLGQEKXQY57 | Long             | EC               | RF                | US        |     34245 | NS      | $426007.80    | 2.39%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Health Sciences Trust                               | BlackRock Health Sciences Trust                               | CUSIP: 09250W107<br>LEI: 4UL0KI4EPYFKMUU31I34 | Long             | EC               | RF                | US        |      6266 | NS      | $222693.64    | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Western Asset High Income Fund II Inc                         | Western Asset High Income Fund II Inc                         | CUSIP: 95766J102<br>LEI: 549300LH0LPNF7USIA77 | Long             | EC               | RF                | US        |     80280 | NS      | $340387.20    | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty All Star Growth Fund Inc                              | Liberty All Star Growth Fund Inc                              | CUSIP: 529900102<br>LEI: 54930046Y8IF3CB2AL60 | Long             | EC               | RF                | US        |    104103 | NS      | $573607.53    | 3.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Neuberger Berman Energy Infrastructure and Income Fund Inc    | Neuberger Berman Energy Infrastructure and Income Fund Inc    | CUSIP: 64129H104<br>LEI: 549300P5ICT7WWGP8224 | Long             | EC               | RF                | US        |     48805 | NS      | $427531.80    | 2.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Tortoise Energy Infrastructure Corp                           | Tortoise Energy Infrastructure Corp                           | CUSIP: 89147L886<br>LEI: 5493008P735YB22YPB89 | Long             | EC               | RF                | US        |      9847 | NS      | $426768.98    | 2.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Highland Opportunities and Income Fund                        | Highland Opportunities and Income Fund                        | CUSIP: 43010E404<br>LEI: 254900CMUE9FRYL2UR80 | Long             | EC               | RF                | US        |     28904 | NS      | $152613.12    | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| John Hancock Premium Dividend Fund                            | John Hancock Premium Dividend Fund                            | CUSIP: 41013T105<br>LEI: 549300HU07GPOB5DR949 | Long             | EC               | RF                | US        |     41148 | NS      | $548914.32    | 3.08%             |  |  |  | No            |                  1 | On Loan: No      |
| AllianceBernstein Global High Income Fund Inc                 | AllianceBernstein Global High Income Fund Inc                 | CUSIP: 01879R106<br>LEI: AE2ZT9UGMEIJ7T4R5734 | Long             | EC               | RF                | US        |     16772 | NS      | $186504.64    | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Credit Strategies Income Fund                          | Nuveen Credit Strategies Income Fund                          | CUSIP: 67073D102<br>LEI: W4CSTD4RDGQSJ4FOVO30 | Long             | EC               | RF                | US        |    131492 | NS      | $727150.76    | 4.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Global High Income Fund                                | Nuveen Global High Income Fund                                | CUSIP: 67075G103<br>LEI: 549300I4IAH7O6ZZEH53 | Long             | EC               | RF                | US        |     13648 | NS      | $180426.56    | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Blackrock Science & Technology Trust                          | Blackrock Science & Technology Trust                          | CUSIP: 09258G104<br>LEI: 549300LK15IHMMH5IS84 | Long             | EC               | RF                | US        |      9332 | NS      | $364507.92    | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Blackstone Strategic Credit 2027 Term Fund                    | Blackstone Strategic Credit 2027 Term Fund                    | CUSIP: 09257R101<br>LEI: 549300YESIF051NRED20 | Long             | EC               | RF                | US        |     20799 | NS      | $258115.59    | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| GAMCO Global Gold Natural Resources & Income Trust            | GAMCO Global Gold Natural Resources & Income Trust            | CUSIP: 36465A109<br>LEI: SMXWLGD6Z5E8SLAQDA43 | Long             | EC               | RF                | US        |     38658 | NS      | $171641.52    | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Floating Rate Income Fund/Closed-end Fund              | Nuveen Floating Rate Income Fund/Closed-end Fund              | CUSIP: 67072T108<br>LEI: HJXCPP3KYE3BVU373P27 | Long             | EC               | RF                | US        |     41500 | NS      | $353580.00    | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| ClearBridge Energy Midstream Opportunity Fund Inc             | ClearBridge Energy Midstream Opportunity Fund Inc             | CUSIP: 18469P209<br>LEI: 549300U6RAJWN6OONX12 | Long             | EC               | RF                | US        |     12800 | NS      | $612736.00    | 3.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Tax-Advantaged Dividend Income Fund               | Eaton Vance Tax-Advantaged Dividend Income Fund               | CUSIP: 27828G107<br>LEI: 549300KZTQOOF16ML741 | Long             | EC               | RF                | US        |     14025 | NS      | $335898.75    | 1.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Templeton Emerging Markets Fund/United States                 | Templeton Emerging Markets Fund/United States                 | CUSIP: 880191101<br>LEI: CZCIR4LW4R7Y5KBS5R36 | Long             | EC               | RF                | US        |     21484 | NS      | $321615.48    | 1.81%             |  |  |  | No            |                  1 | On Loan: No      |
| SRH Total Return Fund Inc                                     | SRH Total Return Fund Inc                                     | CUSIP: 101507101<br>LEI: 5493000XG0EMNJQ1SM17 | Long             | EC               | RF                | US        |     16348 | NS      | $289359.60    | 1.62%             |  |  |  | No            |                  1 | On Loan: No      |
| abrdn Total Dynamic Dividend Fund                             | abrdn Total Dynamic Dividend Fund                             | CUSIP: 00326L100<br>LEI: 254900D48NKNOGZ95B43 | Long             | EC               | RF                | US        |     58550 | NS      | $522851.50    | 2.94%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Taxable Municipal Bond Trust                        | BlackRock Taxable Municipal Bond Trust                        | CUSIP: 09248X100<br>LEI: SNYX4R2CEK5Q5D25DZ39 | Long             | EC               | RF                | US        |     25968 | NS      | $420421.92    | 2.36%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Enhanced Large Cap Core Fund Inc                    | BlackRock Enhanced Large Cap Core Fund Inc                    | CUSIP: 09256A109<br>LEI: YNYNSGFZPAVB3Q7YA123 | Long             | EC               | RF                | US        |     22919 | NS      | $496654.73    | 2.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Advent Convertible and Income Fund                            | Advent Convertible and Income Fund                            | CUSIP: 00764C109<br>LEI: ZEFY1K43K8JK66NIVK50 | Long             | EC               | RF                | US        |     31502 | NS      | $387474.60    | 2.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Tax Managed Global Buy Write Opportunities Fund   | Eaton Vance Tax Managed Global Buy Write Opportunities Fund   | CUSIP: 27829C105<br>LEI: 549300YMO6N2TLCMXO54 | Long             | EC               | RF                | US        |     56710 | NS      | $491675.70    | 2.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Dow 30sm Dynamic Overwrite Fund                        | Nuveen Dow 30sm Dynamic Overwrite Fund                        | CUSIP: 67075F105<br>LEI: 549300CNS4Q1ZZUGS005 | Long             | EC               | RF                | US        |     17369 | NS      | $248376.70    | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Cohen & Steers Quality Income Realty Fund Inc                 | Cohen & Steers Quality Income Realty Fund Inc                 | CUSIP: 19247L106<br>LEI: BOWRNZIYSSLA6IG2ST17 | Long             | EC               | RF                | US        |     28639 | NS      | $351400.53    | 1.97%             |  |  |  | No            |                  1 | On Loan: No      |
| India Fund Inc/The                                            | India Fund Inc/The                                            | CUSIP: 454089103<br>LEI: 5493008XCB4X3JFQPB87 | Long             | EC               | RF                | US        |     38211 | NS      | $590742.06    | 3.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Mexico Fund Inc/The                                           | Mexico Fund Inc/The                                           | CUSIP: 592835102<br>LEI: N/A                  | Long             | EC               | RF                | US        |     12680 | NS      | $226464.80    | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| XAI Madison Equity Premium Income Fund                        | XAI Madison Equity Premium Income Fund                        | CUSIP: 557437100<br>LEI: 254900DMET709D189F74 | Long             | EC               | RF                | US        |     82298 | NS      | $508601.64    | 2.86%             |  |  |  | No            |                  1 | On Loan: No      |
| NYLI MacKay DefinedTerm Muni Opportunities Fund               | NYLI MacKay DefinedTerm Muni Opportunities Fund               | CUSIP: 56064K100<br>LEI: 549300AOV8XDBTKPOR64 | Long             | EC               | RF                | US        |     31996 | NS      | $466501.68    | 2.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Credit Suisse Asset Management Income Fund Inc                | Credit Suisse Asset Management Income Fund Inc                | CUSIP: 224916106<br>LEI: 549300O5MFEP1XJ40B46 | Long             | EC               | RF                | US        |    119875 | NS      | $357227.50    | 2.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley India Investment Fund Inc                      | Morgan Stanley India Investment Fund Inc                      | CUSIP: 61745C105<br>LEI: 5LQ8NRKQLK2XRS19BS65 | Long             | EC               | RF                | US        |      9646 | NS      | $263528.72    | 1.48%             |  |  |  | No            |                  1 | On Loan: No      |
| abrdn Income Credit Strategies Fund                           | abrdn Income Credit Strategies Fund                           | CUSIP: 003057106<br>LEI: JZ9OXI4GGKZDI84RNQ78 | Long             | EC               | RF                | US        |     30122 | NS      | $179225.90    | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-09-25

**Name of Applicant:** Calamos ETF Trust

**Signature:** Stephen Atkins

**Name of Signer:** Stephen Atkins

**Title:** Treasurer