# EDGAR Filing Document

**Accession Number:** 0001579881
**File Stem:** 0001410368-26-034395
**Filing Date:** 2026-3
**Character Count:** 21987
**Document Hash:** fc644b0c23891389134f5db25477547c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-034395.hdr.sgml**: 20260331

**ACCESSION NUMBER**: 0001410368-26-034395

**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:** 26820711

**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:** 2026-01-31

**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:** $28925423.94

**Total Liabilities:** $17214.46

**Net Assets:** $28908209.48

**Cash Not Reported:** $377474.27

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000246662 | 0.98%                | 0.52%                | 3.13%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $132512.99               | $-29152.33                                 |
| Month 2  | $66280.45                | $-221214.42                                |
| Month 3  | $112339.64               | $567683.53                                 |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| abrdn Income Credit Strategies Fund                            | abrdn Income Credit Strategies Fund                            | CUSIP: 003057106<br>LEI: JZ9OXI4GGKZDI84RNQ78 | Long             | EC               | RF                | US        |     46992 | NS      | $263155.20    | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| abrdn Total Dynamic Dividend Fund                              | abrdn Total Dynamic Dividend Fund                              | CUSIP: 00326L100<br>LEI: 254900D48NKNOGZ95B43 | Long             | EC               | RF                | US        |     91338 | NS      | $909726.48    | 3.15%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Health Sciences Trust                                | BlackRock Health Sciences Trust                                | CUSIP: 09250W107<br>LEI: 4UL0KI4EPYFKMUU31I34 | Long             | EC               | RF                | US        |     13575 | NS      | $568385.25    | 1.97%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Enhanced Equity Dividend Trust                       | BlackRock Enhanced Equity Dividend Trust                       | CUSIP: 09251A104<br>LEI: G737UEA5SJ50G32LUQ88 | Long             | EC               | RF                | US        |     60102 | NS      | $577580.22    | 2.00%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock MuniYield Quality Fund Inc                           | BlackRock MuniYield Quality Fund Inc                           | CUSIP: 09254F100<br>LEI: TFKEE3VA3GBE5LOK5U77 | Long             | EC               | RF                | US        |     23992 | NS      | $281426.16    | 0.97%             |  |  |  | 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        |     32447 | NS      | $382225.66    | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Multi-Sector Income Trust                            | BlackRock Multi-Sector Income Trust                            | CUSIP: 09258A107<br>LEI: 549300BOVTR6GS7HLC41 | Long             | EC               | RF                | US        |     31721 | NS      | $419986.04    | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| BlackRock Health Sciences Term Trust                           | BlackRock Health Sciences Term Trust                           | CUSIP: 09260E105<br>LEI: 549300FGMK4EGHSK8N86 | Long             | EC               | RF                | US        |     37009 | NS      | $562906.89    | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| SRH Total Return Fund Inc                                      | SRH Total Return Fund Inc                                      | CUSIP: 101507101<br>LEI: 5493000XG0EMNJQ1SM17 | Long             | EC               | RF                | US        |     15676 | NS      | $277778.72    | 0.96%             |  |  |  | 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        |     15132 | NS      | $735415.20    | 2.54%             |  |  |  | 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        |     44683 | NS      | $546026.26    | 1.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Cohen & Steers Infrastructure Fund Inc                         | Cohen & Steers Infrastructure Fund Inc                         | CUSIP: 19248A109<br>LEI: T085JMDV2CFIPONRA870 | Long             | EC               | RF                | US        |     22917 | NS      | $592404.45    | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Bexil Investment Trust                                         | Bexil Investment Trust                                         | CUSIP: 25538A204<br>LEI: 549300GQF37VFS5FKW75 | Long             | EC               | RF                | US        |     79218 | NS      | $1281295.70   | 4.43%             |  |  |  | No            |                  1 | On Loan: No      |
| DoubleLine Income Solutions Fund                               | DoubleLine Income Solutions Fund                               | CUSIP: 258622109<br>LEI: 549300RGXFCKJWYUTL28 | Long             | EC               | RF                | US        |     51196 | NS      | $587730.08    | 2.03%             |  |  |  | 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        |     38487 | NS      | $862493.67    | 2.98%             |  |  |  | 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        |     21879 | NS      | $568416.42    | 1.97%             |  |  |  | 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        |     71525 | NS      | $802510.50    | 2.78%             |  |  |  | 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        |     10207 | NS      | $309476.24    | 1.07%             |  |  |  | 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        |     31348 | NS      | $344828.00    | 1.19%             |  |  |  | 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        |     39663 | NS      | $581062.95    | 2.01%             |  |  |  | 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        |    124487 | NS      | $1168932.93   | 4.04%             |  |  |  | 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        |    124412 | NS      | $1107266.80   | 3.83%             |  |  |  | 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        |     35527 | NS      | $593300.90    | 2.05%             |  |  |  | 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        |     35641 | NS      | $422345.85    | 1.46%             |  |  |  | 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        |    107129 | NS      | $565641.12    | 1.96%             |  |  |  | No            |                  1 | On Loan: No      |
| John Hancock Premium Dividend Fund                             | John Hancock Premium Dividend Fund                             | CUSIP: 41013T105<br>LEI: 549300HU07GPOB5DR949 | Long             | EC               | RF                | US        |     33444 | NS      | $434437.56    | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Highland Opportunities and Income Fund                         | Highland Opportunities and Income Fund                         | CUSIP: 43010E404<br>LEI: 254900CMUE9FRYL2UR80 | Long             | EC               | RF                | US        |     45088 | NS      | $284505.28    | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| India Fund Inc/The                                             | India Fund Inc/The                                             | CUSIP: 454089103<br>LEI: 5493008XCB4X3JFQPB87 | Long             | EC               | RF                | US        |     19186 | NS      | $260162.16    | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Kayne Anderson Energy Infrastructure Fund                      | Kayne Anderson Energy Infrastructure Fund                      | CUSIP: 486606106<br>LEI: 549300H9ZCLGQEKXQY57 | Long             | EC               | RF                | US        |     28969 | NS      | $382101.11    | 1.32%             |  |  |  | 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        |     38446 | NS      | $599373.14    | 2.07%             |  |  |  | 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        |    212369 | NS      | $1114937.25   | 3.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty All-Star Equity Fund                                   | Liberty All-Star Equity Fund                                   | CUSIP: 530158104<br>LEI: 549300DLV755RNHI1N92 | Long             | EC               | RF                | US        |     53971 | NS      | $327064.26    | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Mexico Fund Inc/The                                            | Mexico Fund Inc/The                                            | CUSIP: 592835102<br>LEI: N/A                  | Long             | EC               | RF                | US        |     19778 | NS      | $423842.54    | 1.47%             |  |  |  | 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        |     58159 | NS      | $446079.53    | 1.54%             |  |  |  | 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        |     15050 | NS      | $352170.00    | 1.22%             |  |  |  | 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        |     76133 | NS      | $714888.87    | 2.47%             |  |  |  | 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        |    280638 | NS      | $836301.24    | 2.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Credit Strategies Income Fund                           | Nuveen Credit Strategies Income Fund                           | CUSIP: 67073D102<br>LEI: W4CSTD4RDGQSJ4FOVO30 | Long             | EC               | RF                | US        |    107175 | NS      | $553023.00    | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Multi-Asset Income Fund                                 | Nuveen Multi-Asset Income Fund                                 | CUSIP: 670750108<br>LEI: 549300VLJPKC3DNIJ668 | Long             | EC               | RF                | US        |     53777 | NS      | $728140.58    | 2.52%             |  |  |  | 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        |     27099 | NS      | $417595.59    | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Global High Income Fund                                 | Nuveen Global High Income Fund                                 | CUSIP: 67075G103<br>LEI: 549300I4IAH7O6ZZEH53 | Long             | EC               | RF                | US        |     26097 | NS      | $337434.21    | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuveen Core Equity Alpha Fund                                  | Nuveen Core Equity Alpha Fund                                  | CUSIP: 67090X107<br>LEI: RXOICX8BWX0J6XOHJ530 | Long             | EC               | RF                | US        |     18185 | NS      | $290596.30    | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| PIMCO Municipal Income Fund II                                 | PIMCO Municipal Income Fund II                                 | CUSIP: 72200W106<br>LEI: ZVT714KPY3QTZWRT1S41 | Long             | EC               | RF                | US        |     77013 | NS      | $593000.10    | 2.05%             |  |  |  | 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        |     41963 | NS      | $828769.25    | 2.87%             |  |  |  | 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        |     30981 | NS      | $701409.84    | 2.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Virtus Equity & Convertible Income Fund                        | Virtus Equity & Convertible Income Fund                        | CUSIP: 92841M101<br>LEI: 549300E7CGC36IOELF91 | Long             | EC               | RF                | US        |     44468 | NS      | $1131710.60   | 3.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Allspring Multi-Sector Income Fund                             | Allspring Multi-Sector Income Fund                             | CUSIP: 94987D101<br>LEI: 549300K6JNPNZMSWMF07 | Long             | EC               | RF                | US        |     61423 | NS      | $579833.12    | 2.01%             |  |  |  | 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        |    152095 | NS      | $573398.15    | 1.98%             |  |  |  | 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        |     24451 | NS      | $272384.14    | 0.94%             |  |  |  | No            |                  1 | 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