Calamos Advisors LLC — 13F Holdings & Portfolio
CIK 1316507 · latest 13F-HR filed 2026-05-04
Calamos Advisors LLC manages $28.22B in 13F-reported U.S. long-equity assets across 1,269 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NVDA (5.06%), AAPL (4.30%), MSFT (3.12%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 382 new positions, exited 121, added to 317, and trimmed 282.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$28.22B
Long-equity book
1,269
Distinct positions
2026-03-31
Filed 2026-05-04
+382 / −121 / ↑317 / ↓282
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- STATE STR SPDR S&P 500 ETF T$369.7M +416.2%
- ISHARES TR$168.8M +1763.5%
- APPLE INC$132.2M +12.2%
- ISHARES TR$126.9M +2411.8%
- ISHARES TR$125.8M +2574.2%
Top Trims
- MICROSOFT CORP-$149.9M -14.6%
- SEAGATE HDD CAYMAN-$86.7M -63.0%
- PPL CAP FDG INC-$73.1M -50.5%
- DUKE ENERGY CORP NEW-$54.3M -38.5%
- SHIFT4 PMTS INC-$53.0M -83.1%
New Positions
- ORACLE CORP$183.8M
- PPL CORP$114.7M
- NEXTERA ENERGY INC$107.1M
- ISHARES TR$57.1M
- ELECTRONIC ARTS INC$50.2M
Exited Positions
- SPOTIFY USA INC$163.3M
- AIRBNB INC$124.3M
- CYBERARK SOFTWARE LTD$43.3M
- UNITY SOFTWARE INC$42.9M
- RINGCENTRAL INC$40.7M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 67066G104 | $1.43B | 5.06% | 8,185,587 | SH |
| 2 | APPLE INC | AAPL | 037833100 | $1.21B | 4.30% | 4,778,795 | SH |
| 3 | MICROSOFT CORP | MSFT | 594918104 | $879.3M | 3.12% | 2,375,507 | SH |
| 4 | ALPHABET INC | GOOGL | 02079K305 | $735.6M | 2.61% | 2,558,213 | SH |
| 5 | AMAZON COM INC | AMZN | 023135106 | $709.3M | 2.51% | 3,405,860 | SH |
| 6 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $613.9M | 2.17% | 900,200 | SH |
| 7 | STATE STR SPDR S&P 500 ETF T Call | SPY | 78462F103 | $551.5M | 1.95% | 808,800 | SH |
| 8 | BROADCOM INC | AVGO | 11135F101 | $511.4M | 1.81% | 1,652,420 | SH |
| 9 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $458.6M | 1.62% | 705,103 | SH |
| 10 | META PLATFORMS INC | META | 30303M102 | $418.2M | 1.48% | 730,902 | SH |
| 11 | WESTERN DIGITAL CORP | WDC | 958102AT2 | $398.9M | 1.41% | 55,616,000 | PRN |
| 12 | INVESCO QQQ TR Put | QQQ | 46090E103 | $327.3M | 1.16% | 532,800 | SH |
| 13 | TESLA INC | TSLA | 88160R101 | $312.8M | 1.11% | 841,450 | SH |
| 14 | ALPHABET INC | GOOG | 02079K107 | $287.4M | 1.02% | 1,001,871 | SH |
| 15 | ELI LILLY & CO | LLY | 532457108 | $283.7M | 1.01% | 308,497 | SH |
| 16 | ALIBABA GROUP HLDG LTD | BABAF | 01609WBG6 | $262.4M | 0.93% | 189,044,000 | PRN |
| 17 | JPMORGAN CHASE & CO | JPM | 46625H100 | $236.8M | 0.84% | 804,936 | SH |
| 18 | VISA INC | V | 92826C839 | $230.3M | 0.82% | 761,893 | SH |
| 19 | EXXON MOBIL CORP | XOM | 30231G102 | $217.5M | 0.77% | 1,282,150 | SH |
| 20 | WALMART INC | WMT | 931142103 | $194.8M | 0.69% | 1,567,252 | SH |
| 21 | JOHNSON & JOHNSON | JNJ | 478160104 | $189.0M | 0.67% | 773,100 | SH |
| 22 | BOEING CO | BAPA | 097023204 | $185.8M | 0.66% | 2,863,092 | SH |
| 23 | ORACLE CORP | ORCLPD | 68389X204 | $183.8M | 0.65% | 4,083,470 | SH |
| 24 | ISHARES TR | IVV | 464287200 | $178.4M | 0.63% | 273,147 | SH |
| 25 | NETFLIX INC. | NFLX | 64110L106 | $167.8M | 0.59% | 1,744,967 | SH |
| 26 | GOLDMAN SACHS GROUP INC | GS | 38141G104 | $144.6M | 0.51% | 170,881 | SH |
| 27 | CHEVRON CORPORATION | CVX | 166764100 | $143.0M | 0.51% | 691,326 | SH |
| 28 | WELLS FARGO & CO | WFC | 949746101 | $133.9M | 0.47% | 1,682,021 | SH |
| 29 | GE VERNOVA INC | GEV | 36828A101 | $133.5M | 0.47% | 152,890 | SH |
| 30 | ISHARES TR | IVW | 464287309 | $132.2M | 0.47% | 1,168,503 | SH |
| 31 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $131.2M | 0.46% | 273,861 | SH |
| 32 | INVESCO QQQ TR Call | QQQ | 46090E103 | $130.9M | 0.46% | 213,100 | SH |
| 33 | ISHARES TR | IVE | 464287408 | $130.7M | 0.46% | 619,118 | SH |
| 34 | MKS INC. | MKSI | 55306NAB0 | $129.8M | 0.46% | 78,265,000 | PRN |
| 35 | MASTERCARD INCORPORATED | MA | 57636Q104 | $124.1M | 0.44% | 248,453 | SH |
| 36 | ISHARES TR Call | IWM | 464287655 | $117.1M | 0.41% | 475,600 | SH |
| 37 | LUMENTUM HLDGS INC | LITE | 55024UAH2 | $114.8M | 0.41% | 11,387,000 | PRN |
| 38 | PPL CORP | PPLC | 69351T866 | $114.7M | 0.41% | 2,235,357 | SH |
| 39 | ISHARES TR Put | IWM | 464287655 | $112.1M | 0.40% | 455,200 | SH |
| 40 | BANK AMERICA CORP | BAC | 060505104 | $111.7M | 0.40% | 2,291,150 | SH |
| 41 | LINDE PLC | LIN | G54950103 | $111.7M | 0.40% | 225,271 | SH |
| 42 | MICRON TECHNOLOGY INC | MU | 595112103 | $108.9M | 0.39% | 322,206 | SH |
| 43 | UBER TECHNOLOGIES INC | UBER | 90353TAM2 | $108.8M | 0.39% | 90,006,000 | PRN |
| 44 | PALANTIR TECHNOLOGIES INC | PLTR | 69608A108 | $108.5M | 0.38% | 741,654 | SH |
| 45 | HOME DEPOT INC | HD | 437076102 | $107.9M | 0.38% | 328,049 | SH |
| 46 | NEXTERA ENERGY INC | NEEPV | 65339F655 | $107.1M | 0.38% | 2,132,972 | SH |
| 47 | SOUTHERN CO | SOMN | 842587842 | $107.0M | 0.38% | 2,081,325 | SH |
| 48 | MICROCHIP TECHNOLOGY INC. | MCHPP | 595017302 | $106.9M | 0.38% | 1,875,865 | SH |
| 49 | ADVANCED ENERGY INDS | AEIS | 007973AE0 | $105.8M | 0.37% | 44,067,000 | PRN |
| 50 | ABBVIE INC | ABBV | 00287Y109 | $105.2M | 0.37% | 483,670 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-04 | $28.22B | 1,269 | 0001316507-26-000002 |
| 2025-12-31 | 2026-01-29 | $26.63B | 997 | 0001316507-26-000001 |