Calamos Strategic Total Return Fund
Sponsor: Calamos · Inception Apr 1, 2004 · Pays monthly
Market priceShare price
$20.09
-0.05% ($-0.01)
NAVAsset value per share
$22.18
as of Oct 14, 2026 · Nasdaq NAV symbol
Premium / discountPrice vs. assets
9.42% discount *
Indicative: latest price vs latest reported NAV
Distribution rate (price)Payout rate
8.06%
regular, annualised · on NAV 7.30%
Expense ratioAnnual cost
Not reported
no tagged fee table
LeverageBorrowing
Not reported
senior securities not tagged
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. 820 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 | Apple Inc | Equity | United States | 5.46% | $266M |
| 2 | NVIDIA Corp | Equity | United States | 5.31% | $258M |
| 3 | Alphabet Inc | Equity | United States | 4.55% | $222M |
| 4 | Microsoft Corp | Equity | United States | 4.08% | $199M |
| 5 | Amazon.com Inc | Equity | United States | 3.61% | $176M |
| 6 | Broadcom Inc | Equity | United States | 2.16% | $105M |
| 7 | Meta Platforms Inc | Equity | United States | 1.58% | $76.9M |
| 8 | Eli Lilly & Co | Equity | United States | 1.39% | $67.8M |
| 9 | JPMorgan Chase & Co | Equity | United States | 1.38% | $67M |
| 10 | Micron Technology Inc | Equity | United States | 1.27% | $61.7M |
Asset class
| Asset class | % net assets | Value |
|---|---|---|
| Equity (common) | 70.83% | $3.4B |
| Equity (preferred) | 4.35% | $212M |
| Debt | 22.06% | $1.1B |
| Loans | 2.62% | $128M |
| Derivative (equity) | 0.13% | $6.3M |
| ABS (other) | 0.02% | $945K |
Country (top 12)
| Country (top 12) | % net assets | Value |
|---|---|---|
| United States | 94.98% | $4.6B |
| Ireland | 0.94% | $45.9M |
| Cayman Islands | 0.85% | $41.2M |
| Israel | 0.62% | $30.1M |
| Canada | 0.40% | $19.4M |
| Switzerland | 0.33% | $16.3M |
| Finland | 0.29% | $13.9M |
| Japan | 0.28% | $13.7M |
| Liberia | 0.24% | $11.9M |
| Bermuda | 0.23% | $11.1M |
| Australia | 0.21% | $10.3M |
| Netherlands | 0.15% | $7.4M |
Region
| Region | % net assets | Value |
|---|---|---|
| United States | 94.98% | $4.6B |
| Developed Europe | 2.00% | $97.3M |
| Offshore domiciles | 1.32% | $64.2M |
| Middle East | 0.62% | $30.1M |
| Canada | 0.40% | $19.4M |
| Japan | 0.28% | $13.7M |
| Australia & New Zealand | 0.21% | $10.3M |
| Other | 0.11% | $5.3M |
| Asia ex-Japan | 0.08% | $4M |
Issuer type
| Issuer type | % net assets | Value |
|---|---|---|
| Corporate | 96.71% | $4.7B |
| Other | 1.74% | $84.9M |
| Registered fund | 1.52% | $73.9M |
| U.S. government agency | 0.03% | $1.3M |
Fair-value level
| Fair-value level | % net assets | Value |
|---|---|---|
| Level 1 | 74.88% | $3.6B |
| Level 2 | 25.12% | $1.2B |
Level 3 = valued with unobservable inputs (typically private or illiquid).
Long / short
| Long / short | % net assets | Value |
|---|---|---|
| Long | 99.87% | $4.9B |
| N/A | 0.13% | $6.3M |
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 820 positions
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| Security | Identifier | Type | Issuer | Country | Balance | Units | Value (USD) | Weight | FV level |
|---|---|---|---|---|---|---|---|---|---|
| Apple Inc | 037833100 | Equity | CORP | United States | 860,785 | shares | $266M | 5.46% | 1 |
| NVIDIA Corp | 67066G104 | Equity | CORP | United States | 1,287,510 | shares | $258M | 5.31% | 1 |
| Alphabet Inc | 02079K305 | Equity | CORP | United States | 622,250 | shares | $222M | 4.55% | 1 |
| Microsoft Corp | 594918104 | Equity | CORP | United States | 427,570 | shares | $199M | 4.08% | 1 |
| Amazon.com Inc | 023135106 | Equity | CORP | United States | 646,610 | shares | $176M | 3.61% | 1 |
| Broadcom Inc | 11135F101 | Equity | CORP | United States | 269,570 | shares | $105M | 2.16% | 1 |
| Meta Platforms Inc | 30303M102 | Equity | CORP | United States | 138,220 | shares | $76.9M | 1.58% | 1 |
| Eli Lilly & Co | 532457108 | Equity | CORP | United States | 59,040 | shares | $67.8M | 1.39% | 1 |
| JPMorgan Chase & Co | 46625H100 | Equity | CORP | United States | 190,495 | shares | $67M | 1.38% | 1 |
| Micron Technology Inc | 595112103 | Equity | CORP | United States | 74,985 | shares | $61.7M | 1.27% | 1 |
| Tesla Inc | 88160R101 | Equity | CORP | United States | 182,630 | shares | $56.8M | 1.17% | 1 |
| Johnson & Johnson | 478160104 | Equity | CORP | United States | 217,145 | shares | $55.7M | 1.14% | 1 |
| Lam Research Corp | 512807306 | Equity | CORP | United States | 176,335 | shares | $51.7M | 1.06% | 1 |
| Visa Inc | 92826C839 | Equity | CORP | United States | 138,650 | shares | $50.8M | 1.04% | 1 |
| CSX Corp | 126408103 | Equity | CORP | United States | 903,775 | shares | $45.6M | 0.94% | 1 |
| Advanced Micro Devices Inc | 007903107 | Equity | CORP | United States | 92,805 | shares | $44.2M | 0.91% | 1 |
| ExxonMobil Holdings Corp | 30233Q108 | Equity | CORP | United States | 278,830 | shares | $43.3M | 0.89% | 1 |
| Goldman Sachs Group Inc/The | 38141G104 | Equity | CORP | United States | 42,230 | shares | $43M | 0.88% | 1 |
| Marathon Petroleum Corp | 56585A102 | Equity | CORP | United States | 134,880 | shares | $42.7M | 0.88% | 1 |
| Mastercard Inc | 57636Q104 | Equity | CORP | United States | 72,315 | shares | $41.4M | 0.85% | 1 |
| Citigroup Inc | 172967424 | Equity | CORP | United States | 310,915 | shares | $41.2M | 0.85% | 1 |
| GE Vernova Inc | 36828A101 | Equity | CORP | United States | 41,350 | shares | $40.9M | 0.84% | 1 |
| Morgan Stanley | 617446448 | Equity | CORP | United States | 188,325 | shares | $39.6M | 0.81% | 1 |
| SEAGATE HDD CAYMAN | 81180WBL4 | Debt | CORP | Cayman Islands | 3,785,000 | principal | $39.3M | 0.81% | 2 |
| Bank of America Corp | 060505104 | Equity | CORP | United States | 608,685 | shares | $37.7M | 0.77% | 1 |
| UnitedHealth Group Inc | 91324P102 | Equity | CORP | United States | 90,675 | shares | $37.6M | 0.77% | 1 |
| Cisco Systems Inc | 17275R102 | Equity | CORP | United States | 303,965 | shares | $35.3M | 0.72% | 1 |
| WESTERN DIGITAL CORP | 958102AT2 | Debt | CORP | United States | 2,200,000 | principal | $31.8M | 0.65% | 2 |
| Caterpillar Inc | 149123101 | Equity | CORP | United States | 38,545 | shares | $31.4M | 0.65% | 1 |
| Wells Fargo & Co | 949746101 | Equity | CORP | United States | 359,125 | shares | $31M | 0.64% | 1 |
| Merck & Co Inc | 58933Y105 | Equity | CORP | United States | 234,030 | shares | $30.5M | 0.63% | 1 |
| CYBERARK SOFTWARE LTD | 23248VAD7 | Debt | CORP | Israel | 18,390,000 | principal | $30.1M | 0.62% | 2 |
| Coca-Cola Co/The | 191216100 | Equity | CORP | United States | 329,140 | shares | $28.8M | 0.59% | 1 |
| Walmart Inc | 931142103 | Equity | CORP | United States | 251,580 | shares | $28M | 0.57% | 1 |
| RTX Corp | 75513E101 | Equity | CORP | United States | 127,815 | shares | $27.5M | 0.56% | 1 |
| DOORDASH INC | 25809KAB1 | Debt | CORP | United States | 27,185,000 | principal | $27.4M | 0.56% | 2 |
| Thermo Fisher Scientific Inc | 883556102 | Equity | CORP | United States | 47,625 | shares | $27.4M | 0.56% | 1 |
| Linde PLC | IE000S9YS762 | Equity | CORP | Ireland | 56,835 | shares | $27.2M | 0.56% | 1 |
| Parker-Hannifin Corp | 701094104 | Equity | CORP | United States | 27,670 | shares | $27M | 0.55% | 1 |
| Philip Morris International Inc | 718172109 | Equity | CORP | United States | 140,020 | shares | $26.7M | 0.55% | 1 |
| Sherwin-Williams Co/The | 824348106 | Equity | CORP | United States | 78,355 | shares | $26.7M | 0.55% | 1 |
| Union Pacific Corp | 907818108 | Equity | CORP | United States | 89,065 | shares | $26M | 0.53% | 1 |
| WELLTOWER OP LLC | 95041AAD0 | Debt | OTHER | United States | 13,975,000 | principal | $25.9M | 0.53% | 2 |
| CLOUDFLARE INC | 18915MAF4 | Debt | CORP | United States | 18,265,000 | principal | $25.3M | 0.52% | 2 |
| Intel Corp | 458140100 | Equity | CORP | United States | 275,220 | shares | $24.8M | 0.51% | 1 |
| ETSY INC | 29786AAQ9 | Debt | CORP | United States | 20,255,000 | principal | $24.7M | 0.51% | 2 |
| Applied Materials Inc | 038222105 | Equity | CORP | United States | 48,520 | shares | $24.6M | 0.51% | 1 |
| iShares Russell 2000 ETF | 464287655 | Equity | RF | United States | 84,565 | shares | $24.6M | 0.51% | 1 |
| Freeport-McMoRan Inc | 35671D857 | Equity | CORP | United States | 389,820 | shares | $24.4M | 0.50% | 1 |
| NEXTERA ENERGY INC | 65339F655 | Preferred | CORP | United States | 509,320 | shares | $24.3M | 0.50% | 1 |
| BOEING CO/THE | 097023204 | Preferred | CORP | United States | 357,885 | shares | $23.9M | 0.49% | 1 |
| Dollar General Corp | 256677105 | Equity | CORP | United States | 187,780 | shares | $23.9M | 0.49% | 1 |
| General Electric Co | 369604301 | Equity | CORP | United States | 65,790 | shares | $23.7M | 0.49% | 1 |
| ALPHABET INC | 02079K602 | Preferred | CORP | United States | 463,534 | shares | $23.3M | 0.48% | 1 |
| ALPHABET INC | 02079K404 | Preferred | CORP | United States | 463,535 | shares | $23.3M | 0.48% | 1 |
| Netflix Inc | 64110L106 | Equity | CORP | United States | 323,600 | shares | $23.2M | 0.48% | 1 |
| Palantir Technologies Inc | 69608A108 | Equity | CORP | United States | 188,330 | shares | $23.2M | 0.48% | 1 |
| MICROCHIP TECHNOLOGY INC | 595017302 | Preferred | CORP | United States | 355,315 | shares | $22.8M | 0.47% | 1 |
| SWIFT HOLDINGS CORP | 499049AA2 | Debt | CORP | United States | 20,600,000 | principal | $22.5M | 0.46% | 2 |
| AbbVie Inc | 00287Y109 | Equity | CORP | United States | 87,445 | shares | $21.9M | 0.45% | 1 |
| General Motors Co | 37045V100 | Equity | CORP | United States | 243,463 | shares | $21.6M | 0.44% | 1 |
| MICROCHIP TECHNOLOGY INC | 595017BM5 | Debt | CORP | United States | 19,935,000 | principal | $21.3M | 0.44% | 2 |
| Williams Cos Inc/The | 969457100 | Equity | CORP | United States | 296,990 | shares | $21.2M | 0.44% | 1 |
| Costco Wholesale Corp | 22160K105 | Equity | CORP | United States | 22,270 | shares | $21.2M | 0.44% | 1 |
| CVS Health Corp | 126650100 | Equity | CORP | United States | 202,415 | shares | $21.1M | 0.43% | 1 |
| ON SEMICONDUCTOR CORP | 682189AU9 | Debt | CORP | United States | 18,270,000 | principal | $20.7M | 0.42% | 2 |
| CENTERPOINT ENERGY INC | 15189TBQ9 | Debt | CORP | United States | 19,835,000 | principal | $20.7M | 0.42% | 2 |
| AKAMAI TECHNOLOGIES INC | 00971TAQ4 | Debt | CORP | United States | 14,175,000 | principal | $20.3M | 0.42% | 2 |
| VanEck J. P. Morgan EM Local Currency Bond ETF | 92189H300 | Equity | RF | United States | 793,185 | shares | $20.2M | 0.41% | 1 |
| LIGAND PHARMACEUTICALS I | 53220KAJ7 | Debt | CORP | United States | 18,680,000 | principal | $19.9M | 0.41% | 2 |
| American Express Co | 025816109 | Equity | CORP | United States | 59,230 | shares | $19.9M | 0.41% | 1 |
| PPL CORPORATION | 69351T866 | Preferred | CORP | United States | 420,940 | shares | $19.8M | 0.41% | 1 |
| Procter & Gamble Co/The | 742718109 | Equity | CORP | United States | 136,830 | shares | $19.8M | 0.41% | 1 |
| State Street Corp | 857477103 | Equity | CORP | United States | 103,125 | shares | $19M | 0.39% | 1 |
| Quest Diagnostics Inc | 74834L100 | Equity | CORP | United States | 80,635 | shares | $18.8M | 0.39% | 1 |
| Lowe's Cos Inc | 548661107 | Equity | CORP | United States | 88,865 | shares | $18.5M | 0.38% | 1 |
| Starbucks Corp | 855244109 | Equity | CORP | United States | 172,710 | shares | $18.2M | 0.37% | 1 |
| CMS ENERGY CORP | 125896BX7 | Debt | CORP | United States | 16,655,000 | principal | $18M | 0.37% | 2 |
| REVOLUTION MEDICINES INC | 76155XAA8 | Debt | CORP | United States | 14,480,000 | principal | $18M | 0.37% | 2 |
| Home Depot Inc/The | 437076102 | Equity | CORP | United States | 52,240 | shares | $17.3M | 0.36% | 1 |
| JBT MAREL CORP | 477839AD6 | Debt | CORP | United States | 16,940,000 | principal | $17M | 0.35% | 2 |
| Booking Holdings Inc | 09857L108 | Equity | CORP | United States | 87,750 | shares | $16.9M | 0.35% | 1 |
| SNOWFLAKE INC | 833445AD1 | Debt | CORP | United States | 8,360,000 | principal | $16.6M | 0.34% | 2 |
| TJX Cos Inc/The | 872540109 | Equity | CORP | United States | 104,675 | shares | $16.5M | 0.34% | 1 |
| DATADOG INC | 23804LAD5 | Debt | CORP | United States | 11,255,000 | principal | $16.4M | 0.34% | 2 |
| Chubb Ltd | CH0044328745 | Equity | CORP | Switzerland | 46,410 | shares | $16.3M | 0.33% | 1 |
| Gilead Sciences Inc | 375558103 | Equity | CORP | United States | 124,535 | shares | $16.2M | 0.33% | 1 |
| Quanta Services Inc | 74762E102 | Equity | CORP | United States | 23,965 | shares | $16M | 0.33% | 1 |
| Delta Air Lines Inc | 247361702 | Equity | CORP | United States | 172,320 | shares | $15.1M | 0.31% | 1 |
| BWX TECHNOLOGIES INC | 05605HAD2 | Debt | CORP | United States | 15,573,000 | principal | $15M | 0.31% | 2 |
| EQT Corp | 26884L109 | Equity | CORP | United States | 278,820 | shares | $14.9M | 0.31% | 1 |
| HP ENTERPRISE CO | 42824C208 | Preferred | CORP | United States | 114,505 | shares | $14.3M | 0.29% | 1 |
| Vertex Pharmaceuticals Inc | 92532F100 | Equity | CORP | United States | 29,645 | shares | $14.1M | 0.29% | 1 |
| UBER TECHNOLOGIES INC | 90353TAM2 | Debt | CORP | United States | 12,000,000 | principal | $14.1M | 0.29% | 2 |
| LYFT INC | 55087PAE4 | Debt | CORP | United States | 13,910,000 | principal | $14.1M | 0.29% | 2 |
| Sandisk Corp | 80004C200 | Equity | CORP | United States | 11,560 | shares | $14M | 0.29% | 1 |
| Danaher Corp | 235851102 | Equity | CORP | United States | 71,760 | shares | $14M | 0.29% | 1 |
| Nokia Oyj | 654902204 | Equity | CORP | Finland | 1,520,000 | shares | $13.9M | 0.29% | 1 |
| MIRUM PHARMACEUTICALS | 604749AC5 | Debt | CORP | United States | 13,615,000 | principal | $13.9M | 0.28% | 2 |
| McDonald's Corp | 580135101 | Equity | CORP | United States | 50,170 | shares | $13.6M | 0.28% | 1 |
| Vulcan Materials Co | 929160109 | Equity | CORP | United States | 50,490 | shares | $13.6M | 0.28% | 1 |
| Medtronic PLC | IE00BTN1Y115 | Equity | CORP | Ireland | 158,025 | shares | $13.5M | 0.28% | 1 |
| Colgate-Palmolive Co | 194162103 | Equity | CORP | United States | 145,515 | shares | $13.3M | 0.27% | 1 |
| Vistra Corp | 92840M102 | Equity | CORP | United States | 88,540 | shares | $13.1M | 0.27% | 1 |
| DIGITAL REALTY TRUST LP | 25389JAX4 | Debt | OTHER | United States | 11,975,000 | principal | $13.1M | 0.27% | 2 |
| NextEra Energy Inc | 65339F101 | Equity | CORP | United States | 149,499 | shares | $13M | 0.27% | 1 |
| Affiliated Managers Group Inc | 008252108 | Equity | CORP | United States | 35,430 | shares | $13M | 0.27% | 1 |
| State Street Blackstone Senior Loan ETF | 78467V608 | Equity | RF | United States | 316,100 | shares | $12.8M | 0.26% | 1 |
| Invesco Senior Loan ETF | 46138G508 | Equity | RF | United States | 624,830 | shares | $12.7M | 0.26% | 1 |
| ONTO INNOVATION INC | 683344AA3 | Debt | CORP | United States | 11,705,000 | principal | $12.7M | 0.26% | 2 |
| WISDOMTREE INC | 97717PAJ3 | Debt | CORP | United States | 9,735,000 | principal | $12.5M | 0.26% | 2 |
| SOUTHERN CO | 842587842 | Preferred | CORP | United States | 245,885 | shares | $12.2M | 0.25% | 1 |
| FLUOR CORP | 343412AJ1 | Debt | CORP | United States | 9,165,000 | principal | $11.9M | 0.24% | 2 |
| Royal Caribbean Cruises Ltd | LR0008862868 | Equity | CORP | Liberia | 37,380 | shares | $11.9M | 0.24% | 1 |
| Amphenol Corp | 032095101 | Equity | CORP | United States | 73,725 | shares | $11.8M | 0.24% | 1 |
| Blackrock Inc | 09290D101 | Equity | CORP | United States | 10,715 | shares | $11.7M | 0.24% | 1 |
| Salesforce Inc | 79466L302 | Equity | CORP | United States | 62,590 | shares | $11.5M | 0.24% | 1 |
| Walt Disney Co/The | 254687106 | Equity | CORP | United States | 118,650 | shares | $11.4M | 0.23% | 1 |
| Chevron Corp | 166764100 | Equity | CORP | United States | 57,507 | shares | $11.3M | 0.23% | 1 |
| ADAPTIVE BIOTECHNOLOGIES | 00650FAA7 | Debt | CORP | United States | 9,250,000 | principal | $11.2M | 0.23% | 2 |
| COGENT BIOSCIENCES INC | 19240QAA0 | Debt | CORP | United States | 9,035,000 | principal | $11.2M | 0.23% | 2 |
| BRIDGEBIO PHARMA INC | 10806XAK8 | Debt | CORP | United States | 10,595,000 | principal | $11M | 0.23% | 2 |
| LIBERTY ENERGY INC | 53115LAA2 | Debt | CORP | United States | 12,475,000 | principal | $10.9M | 0.22% | 2 |
| VSE CORP | 918284209 | Preferred | CORP | United States | 215,085 | shares | $10.9M | 0.22% | 1 |
| KITE REALTY GROUP LP | 49803XAH6 | Debt | OTHER | United States | 10,877,000 | principal | $10.8M | 0.22% | 2 |
| TRAVERE THERAPEUTICS INC | 89422GAB3 | Debt | CORP | United States | 9,015,000 | principal | $10.5M | 0.22% | 2 |
| LUMENTUM HOLDINGS INC | 55024UAJ8 | Debt | CORP | United States | 2,670,000 | principal | $10.4M | 0.21% | 2 |
| REALTY INCOME CORP | 756109CY8 | Debt | OTHER | United States | 9,920,000 | principal | $10.3M | 0.21% | 2 |
| IREN LTD | 46270CAL3 | Debt | CORP | Australia | 13,555,000 | principal | $10.3M | 0.21% | 2 |
| ALBEMARLE CORP | 012653200 | Preferred | CORP | United States | 203,820 | shares | $10.1M | 0.21% | 1 |
| BLOOM ENERGY CORP | 093712AN7 | Debt | CORP | United States | 7,115,000 | principal | $10M | 0.21% | 2 |
| UBER TECHNOLOGIES INC | 90353TAS9 | Debt | CORP | United States | 8,910,000 | principal | $10M | 0.20% | 2 |
| ROBINHOOD MARKETS INC | 770700AA0 | Debt | CORP | United States | 10,180,000 | principal | $9.8M | 0.20% | 2 |
| MIRION TECHNOLOGIES INC | 60471AAC5 | Debt | CORP | United States | 11,245,000 | principal | $9.7M | 0.20% | 2 |
| ORACLE CORP | 68389X204 | Preferred | CORP | United States | 223,965 | shares | $9.4M | 0.19% | 1 |
| QXO INC | 82846H504 | Preferred | CORP | United States | 225,300 | shares | $9.1M | 0.19% | 1 |
| Assurant Inc | 04621X108 | Equity | CORP | United States | 29,983 | shares | $8.4M | 0.17% | 1 |
| LIVE NATION ENTERTAINMEN | 538034BD0 | Debt | CORP | United States | 7,745,000 | principal | $8.4M | 0.17% | 2 |
| Capital One Financial Corp | 14040H105 | Equity | CORP | United States | 36,540 | shares | $7.6M | 0.16% | 1 |
| S&P Global Inc | 78409V104 | Equity | CORP | United States | 17,757 | shares | $7.3M | 0.15% | 1 |
| ORIX Corp | JP3200450009 | Equity | CORP | Japan | 177,100 | shares | $7.1M | 0.15% | 2 |
| Intuitive Surgical Inc | 46120E602 | Equity | CORP | United States | 19,700 | shares | $7M | 0.14% | 1 |
| Stryker Corp | 863667101 | Equity | CORP | United States | 20,295 | shares | $6.6M | 0.14% | 1 |
| Mizuho Financial Group Inc | JP3885780001 | Equity | CORP | Japan | 125,600 | shares | $6.5M | 0.13% | 2 |
| PENGUIN SOLUTIONS INC | 706915AA3 | Debt | CORP | United States | 6,966,000 | principal | $6.2M | 0.13% | 2 |
| AT&T Inc | 00206R102 | Equity | CORP | United States | 264,885 | shares | $6.2M | 0.13% | 1 |
| Boston Scientific Corp | 101137107 | Equity | CORP | United States | 119,590 | shares | $5.6M | 0.11% | 1 |
| NXP Semiconductors NV | NL0009538784 | Equity | CORP | Netherlands | 23,830 | shares | $5.5M | 0.11% | 1 |
| INDIVIOR PHARMACEUTICALS | 45579UAA7 | Debt | CORP | United States | 3,897,000 | principal | $4.7M | 0.10% | 2 |
| FEDERAL REALTY OP LP | 313747BD8 | Debt | OTHER | United States | 4,115,000 | principal | $4.5M | 0.09% | 2 |
| Altria Group Inc | 02209S103 | Equity | CORP | United States | 58,750 | shares | $4M | 0.08% | 1 |
| Hyundai Motor Co | KR7005380001 | Equity | CORP | South Korea | 15,045 | shares | $4M | 0.08% | 2 |
| Estee Lauder Cos Inc/The | 518439104 | Equity | CORP | United States | 47,280 | shares | $4M | 0.08% | 1 |
| Orange SA | FR0000133308 | Equity | CORP | France | 205,085 | shares | $3.9M | 0.08% | 1 |
| Options Clearing Corp. | — | Equity deriv. | OTHER | United States | 0 | contracts | $3.8M | 0.08% | 1 |
| State Street SPDR Bloomberg High Yield Bond ETF | 78468R622 | Equity | RF | United States | 37,365 | shares | $3.6M | 0.07% | 1 |
| ECHOSTAR CORP | 278768AC0 | Debt | CORP | United States | 3,109,045 | principal | $3.4M | 0.07% | 2 |
| Station Casinos LLC | 85769EBB6 | Loan | CORP | United States | 3,128,000 | principal | $3.1M | 0.06% | 2 |
| Charter Communications Operating, LLC | 16117LCE7 | Loan | CORP | United States | 3,208,286 | principal | $3.1M | 0.06% | 2 |
| Iron Mountain Inc | 46284NAV1 | Loan | OTHER | United States | 2,856,750 | principal | $2.9M | 0.06% | 2 |
| Altice France SA | — | Loan | CORP | United States | 2,585,164 | principal | $2.6M | 0.05% | 2 |
| CenterPoint Energy Inc | 15189T206 | Preferred | CORP | United States | 84,885 | shares | $2.6M | 0.05% | 2 |
| Bausch Health Companies Inc | XAC6903HAB06 | Loan | CORP | Canada | 2,601,337 | principal | $2.5M | 0.05% | 2 |
| VENTURE GLOBAL LNG INC | 92332YAF8 | Debt | CORP | United States | 2,525,000 | principal | $2.5M | 0.05% | 2 |
| GE HealthCare Technologies Inc | 36266G107 | Equity | CORP | United States | 34,856 | shares | $2.4M | 0.05% | 1 |
| BROADSTREET PARTNERS GRP | 11135RAA3 | Debt | CORP | United States | 2,394,000 | principal | $2.3M | 0.05% | 2 |
| TransDigm Inc | 89364MCA0 | Loan | CORP | United States | 2,334,360 | principal | $2.3M | 0.05% | 2 |
| AMNEAL PHARMACEUTICALS LLC | 03167DAS3 | Loan | CORP | United States | 2,290,040 | principal | $2.3M | 0.05% | 2 |
| TRUENOORD CAPITAL DAC | 89785GAA6 | Debt | CORP | Ireland | 2,210,000 | principal | $2.3M | 0.05% | 2 |
| Chemours Company (The) | 16384YAM9 | Loan | CORP | United States | 2,284,221 | principal | $2.3M | 0.05% | 2 |
| Jazz Financing Lux Sarl | XAG5080AAJ16 | Loan | CORP | Luxembourg | 2,228,980 | principal | $2.2M | 0.05% | 2 |
| ORGANON & CO/ORGANON FOR | 68622TAB7 | Debt | CORP | United States | 2,200,000 | principal | $2.2M | 0.04% | 2 |
| Avolon TLB Borrower 1 (US) LLC | 05400KAJ9 | Loan | CORP | United States | 2,145,371 | principal | $2.2M | 0.04% | 2 |
| DaVita Inc | 23918VBC7 | Loan | CORP | United States | 2,144,674 | principal | $2.1M | 0.04% | 2 |
| KFC Holding Co | 72584DAF1 | Loan | CORP | United States | 2,132,481 | principal | $2.1M | 0.04% | 2 |
| CHS/COMMUNITY HEALTH SYS | 12543DBL3 | Debt | CORP | United States | 2,392,000 | principal | $2M | 0.04% | 2 |
| Murphy USA Inc | 62675KAB5 | Loan | CORP | United States | 1,985,000 | principal | $2M | 0.04% | 2 |
| DISH DBS CORP | 25470XBB0 | Debt | CORP | United States | 2,073,000 | principal | $2M | 0.04% | 2 |
| DK Crown Holdings Inc | — | Loan | CORP | United States | 1,975,000 | principal | $2M | 0.04% | 2 |
| Installed Building Products Inc | 45780YAZ9 | Loan | CORP | United States | 1,955,000 | principal | $2M | 0.04% | 2 |
| Organon & Co | 68621XAG8 | Loan | CORP | United States | 1,963,694 | principal | $2M | 0.04% | 2 |
| Light and Wonder International, Inc. | 80875AAY7 | Loan | CORP | United States | 1,955,212 | principal | $2M | 0.04% | 2 |
| Adient US LLC | 00687MAH4 | Loan | CORP | United States | 1,955,000 | principal | $2M | 0.04% | 2 |
| TransDigm Inc | 89364MCF9 | Loan | CORP | United States | 1,950,362 | principal | $2M | 0.04% | 2 |
| LIONS GATE CAPITAL HOL 1 | 535939AA0 | Debt | CORP | United States | 2,015,000 | principal | $1.9M | 0.04% | 2 |
| Six Flags Entertainment Corporation | 15018LAN1 | Loan | CORP | United States | 1,960,000 | principal | $1.9M | 0.04% | 2 |
| PENN Entertainment Inc | 70757DAZ2 | Loan | CORP | United States | 1,939,394 | principal | $1.9M | 0.04% | 2 |
| Flutter Financing BV | XAN3313EAG51 | Loan | CORP | Netherlands | 1,950,000 | principal | $1.9M | 0.04% | 2 |
| ALLIANT HOLD / CO-ISSUER | 01883LAH6 | Debt | CORP | United States | 1,920,000 | principal | $1.9M | 0.04% | 2 |
| CASCADES INC/USA INC | 14739LAD4 | Debt | CORP | XX | 1,900,000 | principal | $1.9M | 0.04% | 2 |
| Connect Finco Sarl | XAL2000DAH79 | Loan | CORP | Luxembourg | 1,917,855 | principal | $1.9M | 0.04% | 2 |
| CYPRIUM CORP/CYPRIUM HOL | 23292NAB4 | Debt | CORP | XX | 1,950,000 | principal | $1.9M | 0.04% | 2 |
| KEN GARFF AUTOMOTIVE LLC | 48850PAA2 | Debt | CORP | United States | 1,940,000 | principal | $1.9M | 0.04% | 2 |
| API GROUP DE INC | 00186XAQ6 | Loan | CORP | United States | 1,906,624 | principal | $1.9M | 0.04% | 2 |
| ACADIA HEALTHCARE CO INC | 00404AAQ2 | Debt | CORP | United States | 1,842,000 | principal | $1.9M | 0.04% | 2 |
| INFINITY NATURAL RESOURC | 45690BAA3 | Debt | CORP | United States | 1,870,000 | principal | $1.9M | 0.04% | 2 |
| ADAMS HOMES INC | 00623PAB7 | Debt | CORP | United States | 1,800,000 | principal | $1.9M | 0.04% | 2 |
| BALDWIN INSUR GRP/FIN | 05825XAA7 | Debt | CORP | United States | 1,835,000 | principal | $1.9M | 0.04% | 2 |
| TRANSOCEAN INTERNTNL LTD | 893814AA1 | Debt | CORP | Bermuda | 1,777,000 | principal | $1.9M | 0.04% | 2 |
| ARAMARK SERVICES INC | 03852JBC4 | Loan | CORP | United States | 1,841,155 | principal | $1.8M | 0.04% | 2 |
| WBI OPERATING LLC | 92944BAB7 | Debt | CORP | United States | 1,845,000 | principal | $1.8M | 0.04% | 2 |
| SUNOCO LP | 86765KAL3 | Debt | CORP | United States | 1,815,000 | principal | $1.8M | 0.04% | 2 |
| RR DONNELLEY & SONS CO | 257867BJ9 | Debt | CORP | United States | 1,750,000 | principal | $1.8M | 0.04% | 2 |
| DENTSPLY SIRONA INC | 24906PAB5 | Debt | CORP | United States | 1,820,000 | principal | $1.8M | 0.04% | 2 |
| MEDLINE BORROWER LP | 62482BAB8 | Debt | CORP | United States | 1,789,000 | principal | $1.8M | 0.04% | 2 |
| FORD MOTOR CREDIT CO LLC | 345397B36 | Debt | CORP | United States | 1,885,000 | principal | $1.8M | 0.04% | 2 |
| SUMMIT MIDSTREAM HOLDING | 86614JAA3 | Debt | CORP | United States | 1,658,000 | principal | $1.7M | 0.04% | 2 |
| ALLY FINANCIAL INC | 02005NCB4 | Debt | CORP | United States | 1,705,000 | principal | $1.7M | 0.04% | 2 |
| NABORS INDUSTRIES INC | 62957HAR6 | Debt | CORP | United States | 1,675,000 | principal | $1.7M | 0.04% | 2 |
| Star Parent Inc | 87169DAB1 | Loan | CORP | United States | 1,689,080 | principal | $1.7M | 0.03% | 2 |
| Versant Media Group Inc | 92528PAB0 | Loan | CORP | United States | 1,680,000 | principal | $1.7M | 0.03% | 2 |
| FMC CORP | 302491AZ8 | Debt | CORP | United States | 2,246,000 | principal | $1.7M | 0.03% | 2 |
| VIAVI SOLUTIONS INC | 925550AF2 | Debt | CORP | United States | 1,780,000 | principal | $1.7M | 0.03% | 2 |
| UNITED AIRLINES INC | 90932RAQ7 | Loan | CORP | United States | 1,673,441 | principal | $1.7M | 0.03% | 2 |
| HA SUSTAINABLE INF CAP | 41068XAG5 | Debt | CORP | United States | 1,590,000 | principal | $1.7M | 0.03% | 2 |
| EMRLD Borrower LP | 26872NAD1 | Loan | CORP | United States | 1,661,712 | principal | $1.7M | 0.03% | 2 |
| Carnival Corp Ltd | BMG2004J1036 | Equity | CORP | Bermuda | 59,260 | shares | $1.6M | 0.03% | 1 |
| CAPSTONE COPPER CORP | 14071LAA6 | Debt | CORP | Canada | 1,620,000 | principal | $1.6M | 0.03% | 2 |
| FORD MOTOR CREDIT CO LLC | 345397D42 | Debt | CORP | United States | 1,555,000 | principal | $1.6M | 0.03% | 2 |
| MCGRAW-HILL EDUCATION | 57767XAB6 | Debt | CORP | United States | 1,605,000 | principal | $1.6M | 0.03% | 2 |
| TTM TECHNOLOGIES INC | 87305RAK5 | Debt | CORP | United States | 1,645,000 | principal | $1.6M | 0.03% | 2 |
| DELUXE CORP | 248019AU5 | Debt | CORP | United States | 1,565,000 | principal | $1.6M | 0.03% | 2 |
| BREAD FINANCIAL HLDGS | 018581AQ1 | Debt | CORP | United States | 1,522,000 | principal | $1.6M | 0.03% | 2 |
| GOODYEAR TIRE & RUBBER | 382550BK6 | Debt | CORP | United States | 1,800,000 | principal | $1.6M | 0.03% | 2 |
| STONEX GROUP INC | 861896AA6 | Debt | CORP | United States | 1,500,000 | principal | $1.6M | 0.03% | 2 |
| PROVIDENT FDG/PFG FIN | 74387UAK7 | Debt | CORP | United States | 1,512,000 | principal | $1.6M | 0.03% | 2 |
| VENTURE GLOBAL LNG INC | 92332YAB7 | Debt | CORP | United States | 1,505,000 | principal | $1.6M | 0.03% | 2 |
| JPMORGAN CHASE & CO | 48128BAR2 | Debt | CORP | United States | 1,535,000 | principal | $1.5M | 0.03% | 2 |
| OLIN CORP | 680665AN6 | Debt | CORP | United States | 1,555,000 | principal | $1.5M | 0.03% | 2 |
| RFNA LP | 74984AAA0 | Debt | CORP | United States | 1,515,000 | principal | $1.5M | 0.03% | 2 |
| Axalta Coating Systems U.S. Holdings, Inc. | 90347BAP3 | Loan | CORP | United States | 1,511,238 | principal | $1.5M | 0.03% | 2 |
| KAISER ALUMINUM CORP | 483007AM2 | Debt | CORP | United States | 1,520,000 | principal | $1.5M | 0.03% | 2 |
| MIDWEST GMNG BOR/MWG FIN | 59833DAB6 | Debt | CORP | United States | 1,518,000 | principal | $1.5M | 0.03% | 2 |
| Boxer Parent Company Inc | 05988HAQ0 | Loan | CORP | United States | 1,598,330 | principal | $1.5M | 0.03% | 2 |
| Energy Transfer LP | 29273V100 | Equity | CORP | United States | 70,935 | shares | $1.4M | 0.03% | 1 |
| UKG INC | 90279XAA0 | Debt | CORP | United States | 1,470,000 | principal | $1.4M | 0.03% | 2 |
| SOUTH BOW CAN INFRA HOLD | 836720AG7 | Debt | CORP | Canada | 1,371,000 | principal | $1.4M | 0.03% | 2 |
| DAVITA INC | 23918KAW8 | Debt | CORP | United States | 1,375,000 | principal | $1.4M | 0.03% | 2 |
| Bausch & Lomb Corporation | XAC0787FAL67 | Loan | CORP | Canada | 1,405,562 | principal | $1.4M | 0.03% | 2 |
| LADDER CAP FIN LLLP/CORP | 505742AR7 | Debt | OTHER | United States | 1,360,000 | principal | $1.4M | 0.03% | 2 |
| BRIGHTSTAR LOT/BRIGHSTAR | 108922AA3 | Debt | CORP | United Kingdom | 1,450,000 | principal | $1.4M | 0.03% | 2 |
| CLEARWATER PAPER CORP | 18538RAJ2 | Debt | CORP | United States | 1,570,000 | principal | $1.4M | 0.03% | 2 |
| APTIV SWISS HOLDINGS LTD | 03837AAD2 | Debt | CORP | Jersey | 1,375,000 | principal | $1.4M | 0.03% | 2 |
| Perrigo Investments, LLC | 71429TAF7 | Loan | CORP | United States | 1,392,311 | principal | $1.4M | 0.03% | 2 |
| PLAINS ALL AMERICAN PIPE | 726503AE5 | Debt | CORP | United States | 1,390,000 | principal | $1.4M | 0.03% | 2 |
| AAR ESCROW ISSUER LLC | 00253PAA6 | Debt | CORP | United States | 1,357,000 | principal | $1.4M | 0.03% | 2 |
| DirecTV Financing LLC | 25460HAF9 | Loan | CORP | United States | 1,378,471 | principal | $1.4M | 0.03% | 2 |
| API GROUP DE INC | 00185PAA9 | Debt | CORP | United States | 1,415,000 | principal | $1.4M | 0.03% | 2 |
| TENET HEALTHCARE CORP | 88033GAV2 | Debt | CORP | United States | 1,290,000 | principal | $1.4M | 0.03% | 2 |
| SIRIUS XM RADIO LLC | 82967NBM9 | Debt | CORP | United States | 1,498,000 | principal | $1.4M | 0.03% | 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 | 820 | 100.0% | $4.9B | full |
| Apr 30, 2026 | Jun 26, 2026 | 804 | 100.0% | $4.8B | full |
| Jan 31, 2026 | Mar 31, 2026 | 813 | 100.0% | $4.7B | full |
| Oct 31, 2025 | Dec 23, 2025 | 815 | 100.0% | $4.6B | full |
Net assets here are calculated from position values ÷ reported weights (median across positions), not a reported figure.
CEF Explorer research page for Calamos Strategic Total Return Fund. Figures carry their own dates and sources; a discount to NAV does not guarantee convergence or any return. This is not investment advice.