# EDGAR Filing Document

**Accession Number:** 0001579881
**File Stem:** 0001410368-26-067643
**Filing Date:** 2026-6
**Character Count:** 23480
**Document Hash:** 918c0789d71dbcea3ee5c5db5ee27a4b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-067643.hdr.sgml**: 20260626

**ACCESSION NUMBER**: 0001410368-26-067643

**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:** 261128563

**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:** 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:** $31798742.15

**Total Liabilities:** $18524.25

**Net Assets:** $31780217.90

**Cash Not Reported:** $208111.12

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000246662 | 1.65%                | -5.26%               | 5.65%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $86065.07                | $262520.91                                 |
| Month 2  | $51031.14                | $-1924360.23                               |
| Month 3  | $4763.96                 | $1456797.91                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Virtus Equity & Convertible Income Fund                        | Virtus Equity & Convertible Income Fund                        | CUSIP: 92841M101<br>LEI: 549300E7CGC36IOELF91 | Long             | EC               | RF                | US        |     49028 | NS      | $1273747.44   | 4.01%             |  |  |  | No            |                  1 | On Loan: No      |
| DoubleLine Income Solutions Fund                               | DoubleLine Income Solutions Fund                               | CUSIP: 258622109<br>LEI: 549300RGXFCKJWYUTL28 | Long             | EC               | RF                | US        |     56448 | NS      | $627137.28    | 1.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Tax-Managed Buy-Write Opportunities Fund           | Eaton Vance Tax-Managed Buy-Write Opportunities Fund           | CUSIP: 27828Y108<br>LEI: 549300K03NZO4ZHC3H11 | Long             | EC               | RF                | US        |     43731 | NS      | $638909.91    | 2.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Tax-Advantaged Global Dividend Opportunities Fund  | Eaton Vance Tax-Advantaged Global Dividend Opportunities Fund  | CUSIP: 27828U106<br>LEI: 549300FJ9E7XXCLZCB95 | Long             | EC               | RF                | US        |     11255 | NS      | $335849.20    | 1.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty All-Star Equity Fund                                   | Liberty All-Star Equity Fund                                   | CUSIP: 530158104<br>LEI: 549300DLV755RNHI1N92 | Long             | EC               | RF                | US        |     59507 | NS      | $348115.95    | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Western Asset High Income Opportunity Fund Inc                 | Western Asset High Income Opportunity Fund Inc                 | CUSIP: 95766K109<br>LEI: 549300S7N70O2ERKYG47 | Long             | EC               | RF                | US        |    167695 | NS      | $618794.55    | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Neuberger Real Estate Securities Income Fund Inc               | Neuberger Real Estate Securities Income Fund Inc               | CUSIP: 64190A103<br>LEI: 549300WU72ZN21PNWQ56 | Long             | EC               | RF                | US        |    363363 | NS      | $1104623.52   | 3.48%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Enhanced Equity Dividend Trust                       | BlackRock Enhanced Equity Dividend Trust                       | CUSIP: 09251A104<br>LEI: G737UEA5SJ50G32LUQ88 | Long             | EC               | RF                | US        |     66266 | NS      | $612960.50    | 1.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Multi-Asset Income Fund                                 | Nuveen Multi-Asset Income Fund                                 | CUSIP: 670750108<br>LEI: 549300VLJPKC3DNIJ668 | Long             | EC               | RF                | US        |     59293 | NS      | $822986.84    | 2.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Bexil Investment Trust                                         | Bexil Investment Trust                                         | CUSIP: 25538A204<br>LEI: 549300GQF37VFS5FKW75 | Long             | EC               | RF                | US        |     64626 | NS      | $1053403.80   | 3.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Real Asset Income and Growth Fund                       | Nuveen Real Asset Income and Growth Fund                       | CUSIP: 67074Y105<br>LEI: RQLXTE3CBG56EZF1BQ60 | Long             | EC               | RF                | US        |     12390 | NS      | $160946.10    | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Cohen & Steers Infrastructure Fund Inc                         | Cohen & Steers Infrastructure Fund Inc                         | CUSIP: 19248A109<br>LEI: T085JMDV2CFIPONRA870 | Long             | EC               | RF                | US        |     17466 | NS      | $472804.62    | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Enhanced Equity Income Fund II                     | Eaton Vance Enhanced Equity Income Fund II                     | CUSIP: 278277108<br>LEI: 549300N6ZBLPLGA31U67 | Long             | EC               | RF                | US        |     42435 | NS      | $954363.15    | 3.00%             |  |  |  | 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        |     39171 | NS      | $638487.30    | 2.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Virtus Artificial Intelligence & Technology Opportunities Fund | Virtus Artificial Intelligence & Technology Opportunities Fund | CUSIP: 92838Y100<br>LEI: 549300ZE8QERJKXOVW89 | Long             | EC               | RF                | US        |     34157 | NS      | $836163.36    | 2.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Flaherty & Crumrine Preferred and Income Fund                  | Flaherty & Crumrine Preferred and Income Fund                  | CUSIP: 338480106<br>LEI: 254900LXRIT34GQY5I69 | Long             | EC               | RF                | US        |     39297 | NS      | $458203.02    | 1.44%             |  |  |  | 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        |     78861 | NS      | $835137.99    | 2.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen S&P 500 Dynamic Overwrite Fund                          | Nuveen S&P 500 Dynamic Overwrite Fund                          | CUSIP: 6706EW100<br>LEI: 549300OISXORNCZINQ77 | Long             | EC               | RF                | US        |     26599 | NS      | $468408.39    | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Kayne Anderson Energy Infrastructure Fund                      | Kayne Anderson Energy Infrastructure Fund                      | CUSIP: 486606106<br>LEI: 549300H9ZCLGQEKXQY57 | Long             | EC               | RF                | US        |     31941 | NS      | $455159.25    | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Health Sciences Trust                                | BlackRock Health Sciences Trust                                | CUSIP: 09250W107<br>LEI: 4UL0KI4EPYFKMUU31I34 | Long             | EC               | RF                | US        |     14967 | NS      | $588502.44    | 1.85%             |  |  |  | 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        |    234149 | NS      | $1215233.31   | 3.82%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Utilities Infrastructure & Power Opportunities Trust | BlackRock Utilities Infrastructure & Power Opportunities Trust | CUSIP: 09248D104<br>LEI: XL2HP568CJRFGPERYJ89 | Long             | EC               | RF                | US        |     17201 | NS      | $474059.56    | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Western Asset Premier Bond Fund                                | Western Asset Premier Bond Fund                                | CUSIP: 957664105<br>LEI: 5493007UP8PFRNTX0546 | Long             | EC               | RF                | US        |     14087 | NS      | $150590.03    | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Neuberger Energy Infrastructure and Income Fund Inc            | Neuberger Energy Infrastructure and Income Fund Inc            | CUSIP: 64129H104<br>LEI: 549300P5ICT7WWGP8224 | Long             | EC               | RF                | US        |     83941 | NS      | $879701.68    | 2.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Highland Opportunities and Income Fund                         | Highland Opportunities and Income Fund                         | CUSIP: 43010E404<br>LEI: 254900CMUE9FRYL2UR80 | Long             | EC               | RF                | US        |     76637 | NS      | $476682.14    | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Short Duration Diversified Income Fund             | Eaton Vance Short Duration Diversified Income Fund             | CUSIP: 27828V104<br>LEI: HAXBNTSIUT2SHF0XLJ46 | Long             | EC               | RF                | US        |     50512 | NS      | $543004.00    | 1.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley Emerging Markets Debt Fund Inc                  | Morgan Stanley Emerging Markets Debt Fund Inc                  | CUSIP: 61744H105<br>LEI: 879N34XPZOOCKFD26737 | Long             | EC               | RF                | US        |     64123 | NS      | $473227.74    | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| John Hancock Premium Dividend Fund                             | John Hancock Premium Dividend Fund                             | CUSIP: 41013T105<br>LEI: 549300HU07GPOB5DR949 | Long             | EC               | RF                | US        |     60125 | NS      | $795453.75    | 2.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Credit Strategies Income Fund                           | Nuveen Credit Strategies Income Fund                           | CUSIP: 67073D102<br>LEI: W4CSTD4RDGQSJ4FOVO30 | Long             | EC               | RF                | US        |    118167 | NS      | $574291.62    | 1.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Global High Income Fund                                 | Nuveen Global High Income Fund                                 | CUSIP: 67075G103<br>LEI: 549300I4IAH7O6ZZEH53 | Long             | EC               | RF                | US        |     28773 | NS      | $366568.02    | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Risk-Managed Diversified Equity Income Fund        | Eaton Vance Risk-Managed Diversified Equity Income Fund        | CUSIP: 27829G106<br>LEI: 549300Y73VZSKBZ38790 | Long             | EC               | RF                | US        |    137172 | NS      | $1168705.44   | 3.68%             |  |  |  | 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        |     35775 | NS      | $403542.00    | 1.27%             |  |  |  | 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        |    139776 | NS      | $738017.28    | 2.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Taxable Municipal Income Fund                           | Nuveen Taxable Municipal Income Fund                           | CUSIP: 67074C103<br>LEI: CGX4I2YMRMYU5022FW76 | Long             | EC               | RF                | US        |     19328 | NS      | $307315.20    | 0.97%             |  |  |  | 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        |     41376 | NS      | $312388.80    | 0.98%             |  |  |  | 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        |     16684 | NS      | $863563.84    | 2.72%             |  |  |  | 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        |      8474 | NS      | $222442.50    | 0.70%             |  |  |  | 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        |     46267 | NS      | $954025.54    | 3.00%             |  |  |  | No            |                  1 | On Loan: No      |
| FS Credit Opportunities Corp                                   | FS Credit Opportunities Corp                                   | CUSIP: 30290Y101<br>LEI: 549300XFGO8P7BHG1O49 | Long             | EC               | RF                | US        |     78375 | NS      | $411468.75    | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| LMP Capital and Income Fund Inc                                | LMP Capital and Income Fund Inc                                | CUSIP: 50208A102<br>LEI: 549300YJH1GYGXCCQ467 | Long             | EC               | RF                | US        |     42390 | NS      | $652704.26    | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Western Asset High Yield Opportunity Fund Inc                  | Western Asset High Yield Opportunity Fund Inc                  | CUSIP: 95768B107<br>LEI: 549300MT3R4UXA0DZF65 | Long             | EC               | RF                | US        |     26959 | NS      | $292235.56    | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Adams Natural Resources Fund Inc                               | Adams Natural Resources Fund Inc                               | CUSIP: 00548F105<br>LEI: 549300LPTQAH0G3NGD42 | Long             | EC               | RF                | US        |     30871 | NS      | $834443.13    | 2.63%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Health Sciences Term Trust                           | BlackRock Health Sciences Term Trust                           | CUSIP: 09260E105<br>LEI: 549300FGMK4EGHSK8N86 | Long             | EC               | RF                | US        |     52787 | NS      | $751159.01    | 2.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Advent Convertible and Income Fund                             | Advent Convertible and Income Fund                             | CUSIP: 00764C109<br>LEI: ZEFY1K43K8JK66NIVK50 | Long             | EC               | RF                | US        |     12718 | NS      | $158975.00    | 0.50%             |  |  |  | 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        |    137255 | NS      | $1292942.10   | 4.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Aberdeen India Fund Inc                                        | Aberdeen India Fund Inc                                        | CUSIP: 454089103<br>LEI: 5493008XCB4X3JFQPB87 | Long             | EC               | RF                | US        |     21154 | NS      | $254694.16    | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Mexico Fund Inc/The                                            | Mexico Fund Inc/The                                            | CUSIP: 592835102<br>LEI: N/A                  | Long             | EC               | RF                | US        |     21806 | NS      | $460978.84    | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Allspring Multi-Sector Income Fund                             | Allspring Multi-Sector Income Fund                             | CUSIP: 94987D101<br>LEI: 549300K6JNPNZMSWMF07 | Long             | EC               | RF                | US        |     67723 | NS      | $621019.91    | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| PIMCO Municipal Income Fund II                                 | PIMCO Municipal Income Fund II                                 | CUSIP: 72200W106<br>LEI: ZVT714KPY3QTZWRT1S41 | Long             | EC               | RF                | US        |     39804 | NS      | $298131.96    | 0.94%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Multi-Sector Income Trust                            | BlackRock Multi-Sector Income Trust                            | CUSIP: 09258A107<br>LEI: 549300BOVTR6GS7HLC41 | Long             | EC               | RF                | US        |     34973 | NS      | $448353.86    | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Tax-Advantaged Global Dividend Income Fund         | Eaton Vance Tax-Advantaged Global Dividend Income Fund         | CUSIP: 27828S101<br>LEI: 549300P9NBK8GZ8QI277 | Long             | EC               | RF                | US        |      7286 | NS      | $165027.90    | 0.52%             |  |  |  | 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        |     16594 | NS      | $364404.24    | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| abrdn Income Credit Strategies Fund                            | abrdn Income Credit Strategies Fund                            | CUSIP: 003057106<br>LEI: JZ9OXI4GGKZDI84RNQ78 | Long             | EC               | RF                | US        |     51812 | NS      | $282375.40    | 0.89%             |  |  |  | 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