Calamos Convertible Opportunities & Income Fund
Sponsor: Calamos · Inception Jun 27, 2002 · Pays monthly
Market priceShare price
$11.37
+0.35% (+$0.04)
NAVAsset value per share
$10.84
as of Oct 14, 2026 · Nasdaq NAV symbol
Premium / discountPrice vs. assets
4.89% premium *
Indicative: latest price vs latest reported NAV
Distribution rate (price)Payout rate
10.03%
regular, annualised · on NAV 10.52%
Expense ratioAnnual cost
3.24%
fee table, Sep 4, 2026
LeverageBorrowing
39.4%
of total managed assets
Quote status: Market closed — last regular-session price · last trade Oct 15, 2026, 4:00 PM EDT (exchange time, ET) · retrieved Oct 15, 2026, 10:43 PM EDTRegular-session prices; extended-hours quotes are not displayed.
Full portfolio as filed on SEC Form N-PORT for the month ending Jul 31, 2026, filed Sep 29, 2026. 601 positions; weights are percent of net assets as reported. Weights sum to 100.0% — leverage, cash, derivatives and short positions mean totals need not equal 100%. This is a historical report, not a live portfolio.
Top 10 holdings
| # | Security | Type | Country | Weight | Value (USD) |
|---|---|---|---|---|---|
| 1 | WESTERN DIGITAL CORP | Debt | United States | 2.24% | $30.5M |
| 2 | ALPHABET INC | Preferred | United States | 2.03% | $27.6M |
| 3 | DIGITAL REALTY TRUST LP | Debt | United States | 1.86% | $25.3M |
| 4 | CENTERPOINT ENERGY INC | Debt | United States | 1.80% | $24.5M |
| 5 | CLOUDFLARE INC | Debt | United States | 1.68% | $22.8M |
| 6 | BOEING CO/THE | Preferred | United States | 1.64% | $22.3M |
| 7 | ALPHABET INC | Preferred | United States | 1.64% | $22.3M |
| 8 | IREN LTD | Debt | Australia | 1.58% | $21.6M |
| 9 | Bank of America Corp | Preferred | United States | 1.58% | $21.5M |
| 10 | MICROCHIP TECHNOLOGY INC | Debt | United States | 1.49% | $20.3M |
Asset class
| Asset class | % net assets | Value |
|---|---|---|
| Debt | 80.15% | $1.1B |
| Loans | 4.51% | $61.4M |
| Equity (preferred) | 15.10% | $206M |
| Equity (common) | 0.19% | $2.5M |
| ABS (other) | 0.06% | $757K |
| Derivative (equity) | 0.00% | $9 |
Country (top 12)
| Country (top 12) | % net assets | Value |
|---|---|---|
| United States | 91.33% | $1.2B |
| Canada | 1.65% | $22.4M |
| Australia | 1.58% | $21.6M |
| Israel | 1.47% | $20.1M |
| Bermuda | 1.42% | $19.3M |
| United Kingdom | 0.70% | $9.6M |
| Cayman Islands | 0.51% | $7M |
| Japan | 0.42% | $5.7M |
| XX | 0.31% | $4.2M |
| Ireland | 0.28% | $3.9M |
| Luxembourg | 0.17% | $2.3M |
| Jersey | 0.15% | $2.1M |
Region
| Region | % net assets | Value |
|---|---|---|
| United States | 91.33% | $1.2B |
| Offshore domiciles | 1.93% | $26.3M |
| Canada | 1.65% | $22.4M |
| Australia & New Zealand | 1.58% | $21.6M |
| Middle East | 1.47% | $20.1M |
| Developed Europe | 1.31% | $17.8M |
| Japan | 0.42% | $5.7M |
| Other | 0.31% | $4.2M |
Issuer type
| Issuer type | % net assets | Value |
|---|---|---|
| Corporate | 96.64% | $1.3B |
| Other | 3.32% | $45.2M |
| U.S. government agency | 0.04% | $592K |
Fair-value level
| Fair-value level | % net assets | Value |
|---|---|---|
| Level 2 | 84.72% | $1.2B |
| Level 1 | 15.28% | $208M |
Level 3 = valued with unobservable inputs (typically private or illiquid).
Long / short
| Long / short | % net assets | Value |
|---|---|---|
| Long | 100.00% | $1.4B |
| N/A | 0.00% | $9 |
All allocation percentages use net assets as the denominator (N-PORT convention). A position's share of invested assets may differ from its share of the whole fund including cash and leverage.
All 601 positions
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| Security | Identifier | Type | Issuer | Country | Balance | Units | Value (USD) | Weight | FV level |
|---|---|---|---|---|---|---|---|---|---|
| WESTERN DIGITAL CORP | 958102AT2 | Debt | CORP | United States | 2,115,000 | principal | $30.5M | 2.24% | 2 |
| ALPHABET INC | 02079K404 | Preferred | CORP | United States | 549,990 | shares | $27.6M | 2.03% | 1 |
| DIGITAL REALTY TRUST LP | 25389JAX4 | Debt | OTHER | United States | 23,250,000 | principal | $25.3M | 1.86% | 2 |
| CENTERPOINT ENERGY INC | 15189TBQ9 | Debt | CORP | United States | 23,500,000 | principal | $24.5M | 1.80% | 2 |
| CLOUDFLARE INC | 18915MAF4 | Debt | CORP | United States | 16,500,000 | principal | $22.8M | 1.68% | 2 |
| BOEING CO/THE | 097023204 | Preferred | CORP | United States | 333,755 | shares | $22.3M | 1.64% | 1 |
| ALPHABET INC | 02079K602 | Preferred | CORP | United States | 443,629 | shares | $22.3M | 1.64% | 1 |
| IREN LTD | 46270CAL3 | Debt | CORP | Australia | 28,460,000 | principal | $21.6M | 1.58% | 2 |
| Bank of America Corp | 060505682 | Preferred | CORP | United States | 16,695 | shares | $21.5M | 1.58% | 1 |
| MICROCHIP TECHNOLOGY INC | 595017BM5 | Debt | CORP | United States | 19,000,000 | principal | $20.3M | 1.49% | 2 |
| CYBERARK SOFTWARE LTD | 23248VAD7 | Debt | CORP | Israel | 12,250,000 | principal | $20.1M | 1.47% | 2 |
| LIVE NATION ENTERTAINMEN | 538034BC2 | Debt | CORP | United States | 16,500,000 | principal | $19.1M | 1.40% | 2 |
| CIPHER DIGITAL INC | 17253JAB2 | Debt | CORP | United States | 11,500,000 | principal | $19M | 1.40% | 2 |
| DATADOG INC | 23804LAD5 | Debt | CORP | United States | 13,000,000 | principal | $18.9M | 1.39% | 2 |
| SNOWFLAKE INC | 833445AD1 | Debt | CORP | United States | 9,250,000 | principal | $18.3M | 1.35% | 2 |
| PPL CORPORATION | 69351T866 | Preferred | CORP | United States | 385,170 | shares | $18.1M | 1.33% | 1 |
| MKS INC | 55306NAB0 | Debt | CORP | United States | 8,750,000 | principal | $18M | 1.32% | 2 |
| AKAMAI TECHNOLOGIES INC | 00971TAQ4 | Debt | CORP | United States | 12,500,000 | principal | $17.9M | 1.31% | 2 |
| BWX TECHNOLOGIES INC | 05605HAD2 | Debt | CORP | United States | 18,500,000 | principal | $17.9M | 1.31% | 2 |
| UBER TECHNOLOGIES INC | 90353TAM2 | Debt | CORP | United States | 14,500,000 | principal | $17.1M | 1.25% | 2 |
| ON SEMICONDUCTOR CORP | 682189AU9 | Debt | CORP | United States | 15,000,000 | principal | $17M | 1.25% | 2 |
| LUMENTUM HOLDINGS INC | 55024UAJ8 | Debt | CORP | United States | 4,335,000 | principal | $16.9M | 1.24% | 2 |
| ULTRA CLEAN HOLDINGS INC | 90385VAA5 | Debt | CORP | United States | 12,500,000 | principal | $16.3M | 1.20% | 2 |
| CMS ENERGY CORP | 125896BX7 | Debt | CORP | United States | 13,750,000 | principal | $14.9M | 1.09% | 2 |
| SOUTHERN CO | 842587842 | Preferred | CORP | United States | 285,000 | shares | $14.2M | 1.04% | 1 |
| HP ENTERPRISE CO | 42824C208 | Preferred | CORP | United States | 112,985 | shares | $14.1M | 1.03% | 1 |
| BLOOM ENERGY CORP | 093712AN7 | Debt | CORP | United States | 10,000,000 | principal | $14.1M | 1.03% | 2 |
| TERAWULF INC | 88080TAC8 | Debt | CORP | United States | 8,500,000 | principal | $14M | 1.03% | 2 |
| DOORDASH INC | 25809KAB1 | Debt | CORP | United States | 13,250,000 | principal | $13.4M | 0.98% | 2 |
| BRIDGEBIO PHARMA INC | 10806XAK8 | Debt | CORP | United States | 12,250,000 | principal | $12.7M | 0.93% | 2 |
| LYFT INC | 55087PAE4 | Debt | CORP | United States | 12,500,000 | principal | $12.6M | 0.93% | 2 |
| LIGAND PHARMACEUTICALS I | 53220KAJ7 | Debt | CORP | United States | 11,500,000 | principal | $12.3M | 0.90% | 2 |
| ETSY INC | 29786AAQ9 | Debt | CORP | United States | 10,000,000 | principal | $12.2M | 0.90% | 2 |
| ORACLE CORP | 68389X204 | Preferred | CORP | United States | 268,325 | shares | $11.2M | 0.83% | 1 |
| ROBINHOOD MARKETS INC | 770700AA0 | Debt | CORP | United States | 11,500,000 | principal | $11M | 0.81% | 2 |
| REALTY INCOME CORP | 756109CY8 | Debt | OTHER | United States | 10,500,000 | principal | $10.9M | 0.80% | 2 |
| GUARDANT HEALTH INC | 40131MAE9 | Debt | CORP | United States | 7,000,000 | principal | $10.8M | 0.79% | 2 |
| HALOZYME THERAPEUTICS IN | 40637HAJ8 | Debt | CORP | United States | 9,250,000 | principal | $10.5M | 0.77% | 2 |
| SWIFT HOLDINGS CORP | 499049AA2 | Debt | CORP | United States | 9,500,000 | principal | $10.4M | 0.76% | 2 |
| ONTO INNOVATION INC | 683344AA3 | Debt | CORP | United States | 9,500,000 | principal | $10.3M | 0.76% | 2 |
| DUKE ENERGY CORP | 26441CCL7 | Debt | CORP | United States | 10,250,000 | principal | $10.1M | 0.74% | 2 |
| AKAMAI TECHNOLOGIES INC | 00971TAR2 | Debt | CORP | United States | 10,500,000 | principal | $9.8M | 0.72% | 2 |
| RIVIAN AUTO INC | 76954AAD5 | Debt | CORP | United States | 9,000,000 | principal | $9.3M | 0.69% | 2 |
| GALAXY DIGITAL HOLDIN LP | 36317GAC0 | Debt | CORP | United States | 12,000,000 | principal | $9M | 0.66% | 2 |
| NEXTERA ENERGY INC | 65339F119 | Preferred | CORP | United States | 184,410 | shares | $9M | 0.66% | 1 |
| CENTRUS ENERGY CORP | 15643UAF1 | Debt | CORP | United States | 8,500,000 | principal | $8.9M | 0.66% | 2 |
| AST SPACEMOBILE INC | 00217DAJ9 | Debt | CORP | United States | 8,250,000 | principal | $8.4M | 0.62% | 2 |
| IONIS PHARMACEUTICALS IN | 462222AG5 | Debt | CORP | United States | 9,250,000 | principal | $8.2M | 0.60% | 2 |
| MACOM TECH SOLUTIONS | 55405YAD2 | Debt | CORP | United States | 5,000,000 | principal | $8.1M | 0.60% | 2 |
| BARCLAYS BANK PLC | 06744EDH7 | Debt | CORP | United Kingdom | 7,500,000 | principal | $8.1M | 0.60% | 2 |
| STINGRAY COMPUTE | 86083AAA4 | Debt | CORP | United States | 7,960,000 | principal | $7.8M | 0.57% | 2 |
| APLD COMPUTECO 3 LLC | 03790NAA5 | Debt | CORP | United States | 7,962,000 | principal | $7.8M | 0.57% | 2 |
| SUPER MICRO COMPUTER INC | 86800U500 | Preferred | CORP | United States | 150,475 | shares | $7.6M | 0.56% | 1 |
| MIRION TECHNOLOGIES INC | 60471AAA9 | Debt | CORP | United States | 7,500,000 | principal | $7.3M | 0.54% | 2 |
| COREWEAVE INC | 21873SAH1 | Debt | CORP | United States | 8,000,000 | principal | $7.1M | 0.52% | 2 |
| COREWEAVE INC | 21873SAD0 | Debt | CORP | United States | 7,250,000 | principal | $6.8M | 0.50% | 2 |
| FLUOR CORP | 343412AJ1 | Debt | CORP | United States | 5,250,000 | principal | $6.8M | 0.50% | 2 |
| AMKOR TECHNOLOGY INC | 031652BM1 | Debt | CORP | United States | 7,250,000 | principal | $6.8M | 0.50% | 2 |
| JAZZ INVESTMENTS I LTD | 472145AH4 | Debt | CORP | Bermuda | 3,750,000 | principal | $6.6M | 0.49% | 2 |
| ALBEMARLE CORP | 012653200 | Preferred | CORP | United States | 132,880 | shares | $6.6M | 0.49% | 1 |
| NCL CORPORATION LTD | 62886HBT7 | Debt | CORP | Bermuda | 6,250,000 | principal | $6.5M | 0.48% | 2 |
| LIBERTY MEDIA CORP | 531229AQ5 | Debt | CORP | United States | 5,000,000 | principal | $6.3M | 0.46% | 2 |
| LIBERTY ENERGY INC | 53115LAA2 | Debt | CORP | United States | 7,000,000 | principal | $6.1M | 0.45% | 2 |
| TRAVERE THERAPEUTICS INC | 89422GAB3 | Debt | CORP | United States | 5,250,000 | principal | $6.1M | 0.45% | 2 |
| IMAX CORP | 45245EAK5 | Debt | CORP | Canada | 4,750,000 | principal | $6.1M | 0.45% | 2 |
| SEMTECH CORP | 816850AJ0 | Debt | CORP | United States | 4,000,000 | principal | $5.9M | 0.43% | 2 |
| ADVANTEST CORPORATIONrestricted | XS3304376851 | Debt | CORP | Japan | 700,000,000 | principal | $5.7M | 0.42% | 2 |
| INDIVIOR PHARMACEUTICALS | 45579UAA7 | Debt | CORP | United States | 4,750,000 | principal | $5.7M | 0.42% | 2 |
| MIRUM PHARMACEUTICALS | 604749AC5 | Debt | CORP | United States | 5,500,000 | principal | $5.6M | 0.41% | 2 |
| SEAGATE HDD CAYMAN | 81180WBL4 | Debt | CORP | Cayman Islands | 530,000 | principal | $5.5M | 0.40% | 2 |
| WISDOMTREE INC | 97717PAJ3 | Debt | CORP | United States | 4,250,000 | principal | $5.4M | 0.40% | 2 |
| REVOLUTION MEDICINES INC | 76155XAA8 | Debt | CORP | United States | 4,257,000 | principal | $5.3M | 0.39% | 2 |
| SIRIUS XM HOLDINGS | 531229AP7 | Debt | CORP | United States | 4,500,000 | principal | $5.1M | 0.38% | 2 |
| ADAPTIVE BIOTECHNOLOGIES | 00650FAA7 | Debt | CORP | United States | 4,250,000 | principal | $5.1M | 0.38% | 2 |
| ARES MANAGEMENT CORP | 03990B309 | Preferred | CORP | United States | 123,245 | shares | $5.1M | 0.37% | 1 |
| KKR & CO INC | 48251W500 | Preferred | CORP | United States | 116,510 | shares | $5.1M | 0.37% | 1 |
| VSE CORP | 918284209 | Preferred | CORP | United States | 95,000 | shares | $4.8M | 0.35% | 1 |
| JBT MAREL CORP | 477839AD6 | Debt | CORP | United States | 4,750,000 | principal | $4.8M | 0.35% | 2 |
| PENGUIN SOLUTIONS INC | 706915AA3 | Debt | CORP | United States | 5,250,000 | principal | $4.7M | 0.34% | 2 |
| NEXTERA ENERGY INC | 65339F663 | Preferred | CORP | United States | 85,285 | shares | $4.5M | 0.33% | 1 |
| NEXTERA ENERGY INC | 65339F655 | Preferred | CORP | United States | 95,000 | shares | $4.5M | 0.33% | 1 |
| SOLARIS ENERGY INFRASTRU | 83419XAB4 | Debt | CORP | United States | 3,750,000 | principal | $4.5M | 0.33% | 2 |
| REPLIGEN CORP | 759916AD1 | Debt | CORP | United States | 4,250,000 | principal | $4.4M | 0.33% | 2 |
| PROPETRO HOLDING CORP | 74347MAA6 | Debt | CORP | United States | 5,250,000 | principal | $4.4M | 0.32% | 2 |
| RIVIAN AUTO INC | 76954AAB9 | Debt | CORP | United States | 3,240,000 | principal | $3.6M | 0.27% | 2 |
| MP MATERIALS CORP | 553368AC5 | Debt | CORP | United States | 1,750,000 | principal | $3.6M | 0.26% | 2 |
| LANTHEUS HOLDINGS INC | 516544AB9 | Debt | CORP | United States | 2,721,000 | principal | $3.6M | 0.26% | 2 |
| MERIT MEDICAL SYSTEMS IN | 589889AB0 | Debt | CORP | United States | 3,000,000 | principal | $3.5M | 0.26% | 2 |
| ARROWHEAD RESEARCH CORP | 04280AAC4 | Debt | CORP | United States | 2,750,000 | principal | $3.4M | 0.25% | 2 |
| QXO INC | 82846H504 | Preferred | CORP | United States | 82,135 | shares | $3.3M | 0.24% | 1 |
| CYTOKINETICS INC | 23282WAD2 | Debt | CORP | United States | 2,250,000 | principal | $3.1M | 0.23% | 2 |
| BRUKER CORP | 116794207 | Preferred | CORP | United States | 6,715 | shares | $3.1M | 0.23% | 1 |
| CLEANSPARK INC | 18452BAD2 | Debt | CORP | United States | 3,000,000 | principal | $3M | 0.22% | 2 |
| ENERGY FUELS INC | 292671AC8 | Debt | CORP | Canada | 3,250,000 | principal | $3M | 0.22% | 2 |
| ECHOSTAR CORP | 278768AC0 | Debt | CORP | United States | 2,393,615 | principal | $2.6M | 0.19% | 2 |
| COGENT BIOSCIENCES INC | 19240QAA0 | Debt | CORP | United States | 1,760,000 | principal | $2.2M | 0.16% | 2 |
| LIBERTY ENERGY INC | 53115LAC8 | Debt | CORP | United States | 2,568,000 | principal | $2.1M | 0.16% | 2 |
| Bausch Health Companies Inc | XAC6903HAB06 | Loan | CORP | Canada | 2,080,050 | principal | $2M | 0.15% | 2 |
| Altice France SA | — | Loan | CORP | United States | 1,970,929 | principal | $2M | 0.15% | 2 |
| TransDigm Inc | 89364MCA0 | Loan | CORP | United States | 1,859,611 | principal | $1.9M | 0.14% | 2 |
| TRUENOORD CAPITAL DAC | 89785GAA6 | Debt | CORP | Ireland | 1,700,000 | principal | $1.8M | 0.13% | 2 |
| AMNEAL PHARMACEUTICALS LLC | 03167DAS3 | Loan | CORP | United States | 1,745,314 | principal | $1.8M | 0.13% | 2 |
| ORGANON & CO/ORGANON FOR | 68622TAB7 | Debt | CORP | United States | 1,760,000 | principal | $1.7M | 0.13% | 2 |
| VENTURE GLOBAL LNG INC | 92332YAF8 | Debt | CORP | United States | 1,725,000 | principal | $1.7M | 0.13% | 2 |
| BROADSTREET PARTNERS GRP | 11135RAA3 | Debt | CORP | United States | 1,676,000 | principal | $1.6M | 0.12% | 2 |
| CHS/COMMUNITY HEALTH SYS | 12543DBL3 | Debt | CORP | United States | 1,917,000 | principal | $1.6M | 0.12% | 2 |
| KEN GARFF AUTOMOTIVE LLC | 48850PAA2 | Debt | CORP | United States | 1,575,000 | principal | $1.6M | 0.11% | 2 |
| LUCID GROUP INC | 549498AC7 | Debt | CORP | United States | 3,500,000 | principal | $1.6M | 0.11% | 2 |
| DISH DBS CORP | 25470XBB0 | Debt | CORP | United States | 1,601,000 | principal | $1.5M | 0.11% | 2 |
| CASCADES INC/USA INC | 14739LAD4 | Debt | CORP | XX | 1,485,000 | principal | $1.5M | 0.11% | 2 |
| LIONS GATE CAPITAL HOL 1 | 535939AA0 | Debt | CORP | United States | 1,550,000 | principal | $1.5M | 0.11% | 2 |
| CYPRIUM CORP/CYPRIUM HOL | 23292NAB4 | Debt | CORP | XX | 1,500,000 | principal | $1.5M | 0.11% | 2 |
| ALLIANT HOLD / CO-ISSUER | 01883LAH6 | Debt | CORP | United States | 1,470,000 | principal | $1.5M | 0.11% | 2 |
| Connect Finco Sarl | XAL2000DAH79 | Loan | CORP | Luxembourg | 1,470,663 | principal | $1.5M | 0.11% | 2 |
| ADAMS HOMES INC | 00623PAB7 | Debt | CORP | United States | 1,430,000 | principal | $1.5M | 0.11% | 2 |
| ACADIA HEALTHCARE CO INC | 00404AAQ2 | Debt | CORP | United States | 1,425,000 | principal | $1.5M | 0.11% | 2 |
| TERAWULF INC | 88080TAE4 | Debt | CORP | United States | 1,211,000 | principal | $1.5M | 0.11% | 2 |
| SUNOCO LP | 86765KAL3 | Debt | CORP | United States | 1,425,000 | principal | $1.4M | 0.11% | 2 |
| MEDLINE BORROWER LP | 62482BAB8 | Debt | CORP | United States | 1,443,000 | principal | $1.4M | 0.11% | 2 |
| INFINITY NATURAL RESOURC | 45690BAA3 | Debt | CORP | United States | 1,425,000 | principal | $1.4M | 0.10% | 2 |
| FORD MOTOR CREDIT CO LLC | 345397B36 | Debt | CORP | United States | 1,525,000 | principal | $1.4M | 0.10% | 2 |
| BALDWIN INSUR GRP/FIN | 05825XAA7 | Debt | CORP | United States | 1,410,000 | principal | $1.4M | 0.10% | 2 |
| TRANSOCEAN INTERNTNL LTD | 893814AA1 | Debt | CORP | Bermuda | 1,357,000 | principal | $1.4M | 0.10% | 2 |
| WBI OPERATING LLC | 92944BAB7 | Debt | CORP | United States | 1,415,000 | principal | $1.4M | 0.10% | 2 |
| RR DONNELLEY & SONS CO | 257867BJ9 | Debt | CORP | United States | 1,350,000 | principal | $1.4M | 0.10% | 2 |
| VOYAGER SPACE HOLDINGS I | 92892BAA1 | Debt | CORP | United States | 1,250,000 | principal | $1.4M | 0.10% | 2 |
| VIAVI SOLUTIONS INC | 925550AF2 | Debt | CORP | United States | 1,435,000 | principal | $1.4M | 0.10% | 2 |
| SUMMIT MIDSTREAM HOLDING | 86614JAA3 | Debt | CORP | United States | 1,306,000 | principal | $1.4M | 0.10% | 2 |
| NABORS INDUSTRIES INC | 62957HAR6 | Debt | CORP | United States | 1,285,000 | principal | $1.3M | 0.10% | 2 |
| Star Parent Inc | 87169DAB1 | Loan | CORP | United States | 1,298,235 | principal | $1.3M | 0.10% | 2 |
| FORD MOTOR CREDIT CO LLC | 345397D42 | Debt | CORP | United States | 1,245,000 | principal | $1.3M | 0.10% | 2 |
| Versant Media Group Inc | 92528PAB0 | Loan | CORP | United States | 1,290,000 | principal | $1.3M | 0.10% | 2 |
| TTM TECHNOLOGIES INC | 87305RAK5 | Debt | CORP | United States | 1,350,000 | principal | $1.3M | 0.10% | 2 |
| EMRLD Borrower LP | 26872NAD1 | Loan | CORP | United States | 1,286,951 | principal | $1.3M | 0.09% | 2 |
| DELUXE CORP | 248019AU5 | Debt | CORP | United States | 1,265,000 | principal | $1.3M | 0.09% | 2 |
| GOODYEAR TIRE & RUBBER | 382550BK6 | Debt | CORP | United States | 1,435,000 | principal | $1.3M | 0.09% | 2 |
| RFNA LP | 74984AAA0 | Debt | CORP | United States | 1,250,000 | principal | $1.3M | 0.09% | 2 |
| STONEX GROUP INC | 861896AA6 | Debt | CORP | United States | 1,190,000 | principal | $1.2M | 0.09% | 2 |
| VENTURE GLOBAL LNG INC | 92332YAB7 | Debt | CORP | United States | 1,195,000 | principal | $1.2M | 0.09% | 2 |
| PROVIDENT FDG/PFG FIN | 74387UAK7 | Debt | CORP | United States | 1,190,000 | principal | $1.2M | 0.09% | 2 |
| BREAD FINANCIAL HLDGS | 018581AQ1 | Debt | CORP | United States | 1,183,000 | principal | $1.2M | 0.09% | 2 |
| MCGRAW-HILL EDUCATION | 57767XAB6 | Debt | CORP | United States | 1,230,000 | principal | $1.2M | 0.09% | 2 |
| CAPSTONE COPPER CORP | 14071LAA6 | Debt | CORP | Canada | 1,190,000 | principal | $1.2M | 0.09% | 2 |
| Boxer Parent Company Inc | 05988HAQ0 | Loan | CORP | United States | 1,300,615 | principal | $1.2M | 0.09% | 2 |
| MIDWEST GMNG BOR/MWG FIN | 59833DAB6 | Debt | CORP | United States | 1,219,000 | principal | $1.2M | 0.09% | 2 |
| FMC CORP | 302491AZ8 | Debt | CORP | United States | 1,572,000 | principal | $1.2M | 0.09% | 2 |
| DENTSPLY SIRONA INC | 24906PAB5 | Debt | CORP | United States | 1,185,000 | principal | $1.2M | 0.09% | 2 |
| OLIN CORP | 680665AN6 | Debt | CORP | United States | 1,190,000 | principal | $1.2M | 0.09% | 2 |
| WOLFSPEED INC | 977852AS1 | Debt | CORP | United States | 1,358,149 | principal | $1.2M | 0.09% | 2 |
| KAISER ALUMINUM CORP | 483007AM2 | Debt | CORP | United States | 1,185,000 | principal | $1.2M | 0.09% | 2 |
| Energy Transfer LP | 29273V100 | Equity | CORP | United States | 56,650 | shares | $1.2M | 0.08% | 1 |
| CLEARWATER PAPER CORP | 18538RAJ2 | Debt | CORP | United States | 1,290,000 | principal | $1.1M | 0.08% | 2 |
| API GROUP DE INC | 00185PAA9 | Debt | CORP | United States | 1,160,000 | principal | $1.1M | 0.08% | 2 |
| UKG INC | 90279XAA0 | Debt | CORP | United States | 1,131,000 | principal | $1.1M | 0.08% | 2 |
| LADDER CAP FIN LLLP/CORP | 505742AR7 | Debt | OTHER | United States | 1,069,000 | principal | $1.1M | 0.08% | 2 |
| AAR ESCROW ISSUER LLC | 00253PAA6 | Debt | CORP | United States | 1,068,000 | principal | $1.1M | 0.08% | 2 |
| COREWEAVE FINANCING DDTL V LLC | 21882DAB6 | Loan | CORP | United States | 1,090,000 | principal | $1.1M | 0.08% | 2 |
| SILGAN HOLDINGS INC | 827048AW9 | Debt | CORP | United States | 1,105,000 | principal | $1.1M | 0.08% | 2 |
| DirecTV Financing LLC | 25460HAF9 | Loan | CORP | United States | 1,083,059 | principal | $1.1M | 0.08% | 2 |
| SIRIUS XM RADIO LLC | 82967NBM9 | Debt | CORP | United States | 1,189,000 | principal | $1.1M | 0.08% | 2 |
| BRIGHTSTAR LOT/BRIGHSTAR | 108922AA3 | Debt | CORP | United Kingdom | 1,110,000 | principal | $1.1M | 0.08% | 2 |
| TRANSDIGM INC | 893647BS5 | Debt | CORP | United States | 1,035,000 | principal | $1.1M | 0.08% | 2 |
| Bausch & Lomb Corporation | XAC0787FAL67 | Loan | CORP | Canada | 1,052,872 | principal | $1.1M | 0.08% | 2 |
| ENERGIZER HOLDINGS INC | 29272WAD1 | Debt | CORP | United States | 1,096,000 | principal | $1.1M | 0.08% | 2 |
| DAVITA INC | 23918KAT5 | Debt | CORP | United States | 1,139,000 | principal | $1.1M | 0.08% | 2 |
| EDGEWELL PERSONAL CARE | 28035QAB8 | Debt | CORP | United States | 1,092,000 | principal | $1.1M | 0.08% | 2 |
| TENET HEALTHCARE CORP | 88033GAV2 | Debt | CORP | United States | 990,000 | principal | $1.1M | 0.08% | 2 |
| UNITED WHOLESALE MTGE LL | 913229AA8 | Debt | CORP | United States | 1,123,000 | principal | $1.1M | 0.08% | 2 |
| ACCO BRANDS CORP | 00081TAK4 | Debt | CORP | United States | 1,100,000 | principal | $1M | 0.08% | 2 |
| KBR INC | 48242WAC0 | Debt | CORP | United States | 1,050,000 | principal | $1M | 0.08% | 2 |
| ECHOSTAR CORP | 278768AA4 | Debt | CORP | United States | 1,012,724 | principal | $1M | 0.08% | 2 |
| CENTRAL GARDEN & PET CO | 153527AP1 | Debt | CORP | United States | 1,099,000 | principal | $1M | 0.08% | 2 |
| DAVITA INC | 23918KAS7 | Debt | CORP | United States | 1,061,000 | principal | $1M | 0.08% | 2 |
| FORD MOTOR COMPANY | 345370DB3 | Debt | CORP | United States | 1,000,000 | principal | $1M | 0.07% | 2 |
| SOUTH BOW CAN INFRA HOLD | 836720AG7 | Debt | CORP | Canada | 960,000 | principal | $998K | 0.07% | 2 |
| VOC ESCROW LTD | 91832VAA2 | Debt | CORP | Bermuda | 1,000,000 | principal | $997K | 0.07% | 2 |
| JW ALUMINUM CONT CAST CO | 46648XAB4 | Debt | CORP | United States | 950,000 | principal | $993K | 0.07% | 2 |
| Enterprise Products Partners LP | 293792107 | Equity | CORP | United States | 26,095 | shares | $993K | 0.07% | 1 |
| iHeartCommunications Inc | 45174UAJ7 | Loan | CORP | United States | 1,062,503 | principal | $988K | 0.07% | 2 |
| KNIFE RIVER CORP | 498894AA2 | Debt | CORP | United States | 955,000 | principal | $986K | 0.07% | 2 |
| STL HOLDING CO LLC | 861036AB7 | Debt | CORP | United States | 950,000 | principal | $985K | 0.07% | 2 |
| PAR PETROLEUM LLC | 70178JAB3 | Debt | CORP | United States | 950,000 | principal | $984K | 0.07% | 2 |
| HOWARD MIDSTREAM ENERGY | 442722AC8 | Debt | CORP | United States | 950,000 | principal | $984K | 0.07% | 2 |
| VENTURE GLOBAL PLAQUE | 922966AC0 | Debt | CORP | United States | 950,000 | principal | $981K | 0.07% | 2 |
| STONEPEAK NILE PARENT | 861932AA9 | Debt | CORP | United States | 950,000 | principal | $980K | 0.07% | 2 |
| AZORRA FINANCE | 05480AAB1 | Debt | CORP | Cayman Islands | 950,000 | principal | $979K | 0.07% | 2 |
| LINDBLAD EXPEDITIONS LLC | 53523LAB6 | Debt | CORP | United States | 950,000 | principal | $978K | 0.07% | 2 |
| COEUR MINING INC | 192120AA1 | Debt | CORP | United States | 950,000 | principal | $973K | 0.07% | 2 |
| OCEANEERING INTL INC | 675232AE2 | Debt | CORP | United States | 950,000 | principal | $972K | 0.07% | 2 |
| XHR LP | 98372MAE5 | Debt | OTHER | United States | 950,000 | principal | $970K | 0.07% | 2 |
| MAGNOLIA OIL GAS/MAG FIN | 559665AB0 | Debt | CORP | United States | 950,000 | principal | $968K | 0.07% | 2 |
| CENTURY ALUMINUM COMPANY | 156431AS7 | Debt | CORP | United States | 950,000 | principal | $968K | 0.07% | 2 |
| KEHE DIST/FIN / NEXTWAVE | 487930AA7 | Debt | CORP | United States | 950,000 | principal | $966K | 0.07% | 2 |
| SM ENERGY CO | 78454LAY6 | Debt | CORP | United States | 950,000 | principal | $966K | 0.07% | 2 |
| WORTHINGTON STEEL INC | — | Loan | CORP | United States | 960,000 | principal | $965K | 0.07% | 2 |
| ALLEGIANT TRAVEL CO | 01748XAE2 | Debt | CORP | United States | 950,000 | principal | $964K | 0.07% | 2 |
| WEATHERFORD INTERNATIONA | 947075AW7 | Debt | CORP | Bermuda | 950,000 | principal | $962K | 0.07% | 2 |
| QUIKRETE HOLDINGS INC | 74843PAA8 | Debt | CORP | United States | 950,000 | principal | $962K | 0.07% | 2 |
| ZEBRA TECHNOLOGIES CORP | 989207AD7 | Debt | CORP | United States | 950,000 | principal | $962K | 0.07% | 2 |
| SIX FLAGS/CAN WON/MILLEN | 83003AAA8 | Debt | CORP | United States | 950,000 | principal | $961K | 0.07% | 2 |
| PLAINS ALL AMERICAN PIPE | 726503AE5 | Debt | CORP | United States | 960,000 | principal | $961K | 0.07% | 2 |
| MATADOR RESOURCES CO | 576485AG1 | Debt | CORP | United States | 960,000 | principal | $960K | 0.07% | 2 |
| LIFE TIME INC | 53190FAE5 | Debt | CORP | United States | 950,000 | principal | $959K | 0.07% | 2 |
| AVIENT CORP | 05368VAB2 | Debt | CORP | United States | 950,000 | principal | $958K | 0.07% | 2 |
| Jupiter Borrower Inc | 48207CAB9 | Loan | CORP | United States | 950,000 | principal | $957K | 0.07% | 2 |
| ASCENT RESOURCES/ARU FIN | 04364VAX1 | Debt | CORP | United States | 950,000 | principal | $957K | 0.07% | 2 |
| TALLGRASS NRG PRTNR/FIN | 87470LAM3 | Debt | CORP | United States | 950,000 | principal | $957K | 0.07% | 2 |
| RIVERS ENTERPRISE | 76883NAA9 | Debt | CORP | United States | 950,000 | principal | $956K | 0.07% | 2 |
| POST HOLDINGS INC | 737446AU8 | Debt | CORP | United States | 950,000 | principal | $956K | 0.07% | 2 |
| ZF NA CAPITAL | 98877DAH8 | Debt | CORP | United States | 950,000 | principal | $956K | 0.07% | 2 |
| RIVERS ENT BORROWER LLC | 76884GAA3 | Debt | CORP | United States | 950,000 | principal | $955K | 0.07% | 2 |
| DORMAN PRODUCTS INC | 258278AA8 | Debt | CORP | United States | 950,000 | principal | $955K | 0.07% | 2 |
| TEREX CORP | 880779BB8 | Debt | CORP | United States | 950,000 | principal | $955K | 0.07% | 2 |
| ALLY FINANCIAL INC | 02005NCB4 | Debt | CORP | United States | 950,000 | principal | $955K | 0.07% | 2 |
| LEVEL 3 FINANCING INC | 52729KAV8 | Loan | CORP | United States | 950,000 | principal | $955K | 0.07% | 2 |
| Dragon Buyer, Inc | 26143FAB5 | Loan | CORP | United States | 1,191,850 | principal | $954K | 0.07% | 2 |
| CENTURY COMMUNITIES | 156504AN2 | Debt | CORP | United States | 950,000 | principal | $954K | 0.07% | 2 |
| PENN ENTERTAINMENT INC | 707569AY5 | Debt | CORP | United States | 950,000 | principal | $954K | 0.07% | 2 |
| Windsor Holdings III LLC | 97360BAH8 | Loan | CORP | United States | 950,198 | principal | $953K | 0.07% | 2 |
| SUNOCO LP | 86765KAD1 | Debt | CORP | United States | 950,000 | principal | $953K | 0.07% | 2 |
| STARWOOD PROPERTY TRUST | 85571BBC8 | Debt | OTHER | United States | 950,000 | principal | $952K | 0.07% | 2 |
| Mckesson Medical-Surgical Top Holdings Inc. | — | Loan | CORP | United States | 950,000 | principal | $952K | 0.07% | 2 |
| SIX FLAGS ENTERTAINME | 83001AAD4 | Debt | CORP | United States | 970,000 | principal | $952K | 0.07% | 2 |
| DAVITA INC | 23918KAW8 | Debt | CORP | United States | 925,000 | principal | $951K | 0.07% | 2 |
| STONEBRIAR ABF LLC | 86177CAB5 | Debt | CORP | United States | 950,000 | principal | $951K | 0.07% | 2 |
| Beach Acquisition Bidco LLC | 07337FAB1 | Loan | CORP | United States | 945,256 | principal | $951K | 0.07% | 2 |
| ALLIANT HOLD / CO-ISSUER | 01883LAG8 | Debt | CORP | United States | 950,000 | principal | $951K | 0.07% | 2 |
| Chamberlain Group Inc | 15963CAE6 | Loan | CORP | United States | 946,644 | principal | $949K | 0.07% | 2 |
| VOYAGER PARENT LLC | 92921HAD7 | Loan | CORP | United States | 945,250 | principal | $948K | 0.07% | 2 |
| OPAL BIDCO SAS | XAF7000QAD34 | Loan | CORP | United States | 942,887 | principal | $946K | 0.07% | 2 |
| Blackfin Pipeline LLC | 09231PAB2 | Loan | CORP | United States | 942,875 | principal | $946K | 0.07% | 2 |
| CENGAGE LEARNING INC | 15131YAR6 | Loan | CORP | United States | 950,000 | principal | $944K | 0.07% | 2 |
| TEAM HEALTH HOLDINGS INC | 87817JAJ7 | Loan | CORP | United States | 940,524 | principal | $943K | 0.07% | 2 |
| American Axle and Manufacturing, Inc. | 02406MBB2 | Loan | CORP | United States | 938,125 | principal | $942K | 0.07% | 2 |
| Weber-Stephen Products LLC | 94767KAR2 | Loan | CORP | United States | 947,625 | principal | $942K | 0.07% | 2 |
| DISCOVERY GLOBAL HOLDINGS INC | 25472YAB7 | Loan | CORP | United States | 938,558 | principal | $940K | 0.07% | 2 |
| Quikrete Holdings Inc | 74839XAL3 | Loan | CORP | United States | 938,125 | principal | $940K | 0.07% | 2 |
| Life Time Fitness Inc | 50218KAN8 | Loan | CORP | United States | 935,797 | principal | $939K | 0.07% | 2 |
| ONEMAIN FINANCE CORP | 682691AM2 | Debt | CORP | United States | 960,000 | principal | $938K | 0.07% | 2 |
| ONEMAIN FINANCE CORP | 682691AN0 | Debt | CORP | United States | 950,000 | principal | $936K | 0.07% | 2 |
| Station Casinos LLC | 85769EBB6 | Loan | CORP | United States | 928,625 | principal | $931K | 0.07% | 2 |
| SOLSTICE ADVANCED MATERI | 83443QAA1 | Debt | CORP | United States | 950,000 | principal | $931K | 0.07% | 2 |
| Padagis LLC | 69526PAC8 | Loan | CORP | United States | 966,716 | principal | $930K | 0.07% | 2 |
| JEFFERIES FIN LLC / JFIN | 47232MAG7 | Debt | CORP | United States | 945,000 | principal | $929K | 0.07% | 2 |
| NISSAN MOTOR ACCEPTANCE | 65480CAL9 | Debt | CORP | United States | 950,000 | principal | $928K | 0.07% | 2 |
| UNITI GROUP/CSL CAPITAL | 91327BAA8 | Debt | CORP | United States | 940,000 | principal | $928K | 0.07% | 2 |
| HA SUSTAINABLE INF CAP | 41068XAG5 | Debt | CORP | United States | 885,000 | principal | $928K | 0.07% | 2 |
| CREDIT ACCEPTANC | 225310AS0 | Debt | CORP | United States | 922,000 | principal | $923K | 0.07% | 2 |
| PERFORMANCE FOOD GROUP I | 71376LAH3 | Debt | CORP | United States | 950,000 | principal | $922K | 0.07% | 2 |
| CNX RESOURCES CORP | 12653CAM0 | Debt | CORP | United States | 950,000 | principal | $922K | 0.07% | 2 |
Equities show share counts; bonds and loans show principal amount. Coupon, maturity and ratings are shown where the filing discloses them. Source: SEC N-PORT via market-data vendor re-serve, position-level.
Holdings reports on file
| Report date | Filed | Positions | Σ weight | Net assets (calc.) | Coverage |
|---|---|---|---|---|---|
| Jul 31, 2026 | Sep 29, 2026 | 601 | 100.0% | $1.4B | full |
| Apr 30, 2026 | Jun 26, 2026 | 602 | 100.0% | $1.4B | full |
| Jan 31, 2026 | Mar 31, 2026 | 612 | 100.0% | $1.3B | full |
| Oct 31, 2025 | Dec 23, 2025 | 623 | 100.0% | $1.3B | full |
Net assets here are calculated from position values ÷ reported weights (median across positions), not a reported figure.
CEF Explorer research page for Calamos Convertible Opportunities & Income Fund. Figures carry their own dates and sources; a discount to NAV does not guarantee convergence or any return. This is not investment advice.