Calamos Advisors LLC
NAPERVILLE, IL · CIK 1316507 · 13F filing filed 2026-07-31
SEC-registered investment adviser since 1987 · limited liability company
- Assets managed$43.9bn
- Staff300 · 114 in investment roles
- Main clients (by assets)Mutual funds and ETFs 91%, High net worth individuals 3%, Insurers 2%
- Private funds3 · $215.1m gross assets
- Form ADV · 2026-07-23SEC adviser record
- Legal entityCALAMOS ADVISORS LLC (US)
- Part of CALAMOS INVESTMENTS LLC (US)
Other 13F filers in this group: Calamos Wealth Management LLC $3.3bn
- Kindmutual funds, futures, wealth
- Others nearbyNaperville, IL, Chicago, IL, Miami, FL, New York, NY, San Francisco, CA, Milwaukee, WI
- FamilyCALAMOS INVESTMENTS LLC · 2 related pages
As an employer
- Offices in1 country
- Private fundsother private 3
Where they work
Offices
From Form ADV: the main office and the other offices where it does advisory work (at most the 25 largest), with the people doing investment work at each. “About” is worked out: the firm's investment staff less its other offices. Each city links to the other managers there.
| City | People |
|---|---|
| Naperville, IL (main office)United States | about 78 |
| Chicago, ILUnited States | 22 |
| Milwaukee, WIUnited States | 4 |
| New York, NYUnited States | 4 |
| San Francisco, CAUnited States | 4 |
| Portland, ORUnited States | 2 |
US visa salary filings
- Filings FY2024–202517
- Median salary offered$107,000
- Middle half$90,000 – $115,000
- Job titles15
| Job title | Filings | Median |
|---|---|---|
| Sustainability AnalystChicago, IL | 2 | $115,000 |
| DeveloperNaperville, IL | 2 | $107,000 |
| Senior Business AnalystNaperville, IL | 1 | $185,000 |
| Technical Architect - EagleNaperville, IL | 1 | $140,000 |
| Quantitative AnalystNaperville, IL | 1 | $130,000 |
| Lead Data ScientistNaperville, IL | 1 | $125,000 |
| Data ScientistNaperville, IL | 1 | $115,000 |
| Analytics EngineerChicago, IL | 1 | $105,000 |
| Risk Management AssociateChicago, IL | 1 | $100,000 |
| Junior Analytics EngineerNaperville, IL | 1 | $90,000 |
| Data AnalystChicago, IL | 1 | $90,000 |
| Research AssociateNaperville, IL | 1 | $85,000 |
3 more job titles
| Economist And Transaction AssociateNaperville, IL | 1 | $85,000 |
| AnalystChicago, IL | 1 | $85,000 |
| Strategy And Deals AssociateChicago, IL | 1 | $80,000 |
Source: US Department of Labor, Labor Condition Application disclosure data (certified, full-time, yearly equivalent). These are the salaries the employer committed to pay the visa roles it filed for, at least the prevailing wage for the job and place; they are not the pay of all its staff. Filed by: Calamos Advisors LLC.
Map: places from GeoNames (CC BY 4.0), outlines from Natural Earth.
Options: 30 call positions ($1.2bn notional), 8 put positions ($1.3bn notional) – listed below, not included above.
This report includes the holdings of 2 other managers that share the investment decisions:
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC – files its own report too; $58.7m of shares are in both
- First State Trust Co – no 13F of its own this quarter
Shares in two reports are counted once in each security's totals.
Holdings, Q2 2026
The small lines show how much was held over the last 4 quarters (adjusted for stock splits).
| Security | Value | Change |
|---|---|---|
| NVIDIA CORPORATION NVDA | $1.4bn5.12% | Reduced -1.1m |
| APPLE INC AAPL | $1.1bn4.12% | Reduced -853.3k |
| CALAMOS ETF TR CBOX | $1.1bn3.91% | New |
| WESTERN DIGITAL CORP WDC 3 11.15.28 · principal | $825.1m2.99% | Reduced -6.9m |
| MICROSOFT CORP MSFT | $762.8m2.76% | Reduced -330.5k |
| ALPHABET INC GOOGL | $721.7m2.62% | Reduced -538.7k |
| AMAZON COM INC AMZN | $713.0m2.58% | Reduced -414.3k |
| BROADCOM INC AVGO | $519.3m1.88% | Reduced -277.8k |
| META PLATFORMS INC META | $370.4m1.34% | Reduced -73.3k |
| MICRON TECHNOLOGY INC MU | $361.8m1.31% | Reduced -8.8k |
| ELI LILLY & CO LLY | $339.4m1.23% | Reduced -25.5k |
| ALPHABET INC GOOG | $320.5m1.16% | Reduced -94.7k |
| ADVANCED MICRO DEVICES INC AMD | $314.1m1.14% | Added +62.8k |
| TESLA INC TSLA | $314.0m1.14% | Reduced -95.0k |
| ALPHABET INC GOOGL 6.25 05.15.29 A | $237.3m0.86% | New |
| ALPHABET INC GOOGL 6.25 05.15.29 B | $232.2m0.84% | New |
| JPMORGAN CHASE & CO JPM | $231.9m0.84% | Reduced -96.6k |
| VISA INC V | $226.9m0.82% | Reduced -100.4k |
| ALIBABA GROUP HLDG LTD BABA 0.5 06.01.31 · principal | $223.2m0.81% | Added +5.0k |
| APPLIED MATLS INC AMAT | $219.4m0.80% | Reduced -3.7k |
| BOEING CO BA 6 10.15.27 | $185.4m0.67% | Reduced -108.1k |
| HEWLETT PACKARD ENTERPRISE C HPE 7.625 09.01.27 | $183.5m0.67% | Added +194.1k |
| ORACLE CORP ORCL 6.5 01.15.29 D | $178.8m0.65% | Reduced -106.7k |
| INTEL CORP INTC | $177.1m0.64% | Added +293.4k |
| GOLDMAN SACHS GROUP INC GS | $167.6m0.61% | Reduced -5.2k |
| JOHNSON & JOHNSON JNJ | $164.4m0.60% | Reduced -125.9k |
| CATERPILLAR INC CAT | $160.0m0.58% | Added +15.6k |
| LAM RESEARCH CORP LRCX | $158.4m0.57% | Reduced -47.7k |
| EXXON MOBIL CORP XOM | $155.3m0.56% | Reduced -146.3k |
| WALMART INC WMT | $154.4m0.56% | Reduced -204.3k |
| MKS INC. MKSI 1.25 06.01.30 · principal | $149.9m0.54% | Reduced -27.5m |
| SNOWFLAKE INC SNOW 0 10.01.29 · principal | $148.4m0.54% | Added +20.0m |
| ON SEMICONDUCTOR CORP ON 0.5 03.01.29 · principal | $147.7m0.54% | Added +16.1m |
| GE VERNOVA INC GEV | $145.3m0.53% | Reduced -29.2k |
| CISCO SYS INC CSCO | $138.5m0.50% | Added +20.3k |
| UNITEDHEALTH GROUP INC UNH | $128.6m0.47% | Added +58.5k |
| DOORDASH INC DASH 0 05.15.30 · principal | $126.4m0.46% | New |
| BERKSHIRE HATHAWAY INC DEL BRK.B | $126.3m0.46% | Reduced -21.4k |
| BANK AMERICA CORP BAC | $125.8m0.46% | Reduced -83.9k |
| MASTERCARD INCORPORATED MA | $122.7m0.44% | Reduced -9.5k |
| CLOUDFLARE INC NET 0 06.15.30 · principal | $121.0m0.44% | New |
| CYBERARK SOFTWARE LTD CYBR 0 06.15.30 · principal | $120.7m0.44% | New |
| AKAMAI TECHNOLOGIES INC AKAM 0.25 05.15.33 · principal | $114.3m0.41% | New |
| WELLS FARGO CO NEW WFC | $112.9m0.41% | Reduced -315.9k |
| MICROCHIP TECHNOLOGY INC. MCHP 7.5 03.15.28 | $111.9m0.41% | Reduced -417.2k |
| PPL CORP PPL 7 02.15.29 | $109.7m0.40% | Added +827 |
| RIVIAN AUTOMOTIVE INC RIVN 4.625 03.15.29 · principal | $108.6m0.39% | Reduced -339.0k |
| UBER TECHNOLOGIES INC UBER 0.875 12.01.28 2028 · principal | $107.3m0.39% | Reduced -565.0k |
| LINDE PLC LIN | $107.2m0.39% | Reduced -18.7k |
| PHILIP MORRIS INTL INC PM | $105.3m0.38% | Reduced -11.1k |
| SOUTHERN CO SO 7.125 12.15.28 A | $105.2m0.38% | Added +34.3k |
| GE AEROSPACE GE | $103.6m0.38% | Reduced -11.6k |
| DATADOG INC DDOG 0 12.01.29 · principal | $103.3m0.37% | Added +12.9m |
| CITIGROUP INC C | $102.9m0.37% | Added +1.9k |
| NEXTERA ENERGY INC NEE 7.375 02.15.29 | $101.9m0.37% | Reduced -7.6k |
| ABBVIE INC ABBV | $100.6m0.36% | Reduced -83.8k |
| NETFLIX INC NFLX | $98.7m0.36% | Reduced -362.2k |
| HOME DEPOT INC HD | $93.1m0.34% | Reduced -64.0k |
| MORGAN STANLEY MS | $92.5m0.34% | Reduced -93.4k |
| CHEVRON CORP NEW CVX | $92.1m0.33% | Reduced -135.6k |
| RTX CORPORATION RTX | $91.0m0.33% | Reduced -23.3k |
| EVERGY INC EVRG 4.5 12.15.27 · principal | $87.8m0.32% | Reduced -78.0k |
| CMS ENERGY CORP CMS 3.375 05.01.28 · principal | $85.9m0.31% | Added +14.4m |
| ETSY INC ETSY 1 06.15.30 · principal | $85.2m0.31% | New |
| AKAMAI TECHNOLOGIES INC AKAM 1.125 02.15.29 · principal | $84.2m0.31% | Added +19.1m |
| PALO ALTO NETWORKS INC PANW | $83.7m0.30% | Reduced -18.9k |
| MERCK & CO INC MRK | $83.6m0.30% | Reduced -127.2k |
| SEAGATE HDD CAYMAN STX 3.5 06.01.28 · principal | $81.2m0.29% | Reduced -3.8m |
| CSX CORP CSX | $80.4m0.29% | Reduced -30.3k |
| QUANTA SVCS INC PWR | $80.1m0.29% | Added +2.8k |
| SUPER MICRO COMPUTER INC SMCI 7 06.01.29 | $78.7m0.29% | New |
| COCA COLA CO KO | $78.5m0.28% | Reduced -33.6k |
| SANDISK CORP SNDK | $77.8m0.28% | Added +11.0k |
| PALANTIR TECHNOLOGIES INC PLTR | $77.5m0.28% | Reduced -77.6k |
| NORFOLK SOUTHN CORP NSC | $76.1m0.28% | Reduced -2.5k |
| COSTCO WHSL CORP NEW COST | $75.2m0.27% | Reduced -10.6k |
| APOLLO GLOBAL MGMT INC APO 6.75 07.31.26 | $75.0m0.27% | Added +745 |
| JAZZ INVESTMENTS I LTD JAZZ 3.125 09.15.30 · principal | $74.5m0.27% | Unchanged |
| MARATHON PETE CORP MPC | $74.4m0.27% | Reduced -28.2k |
| SOUTHERN CO SO 3.25 06.15.28 · principal | $71.2m0.26% | New |
| KKR & CO INC KKR 6.25 03.01.28 D | $71.0m0.26% | Added +1.8k |
| PROCTER AND GAMBLE CO PG | $70.0m0.25% | Reduced -21.4k |
| UNION PAC CORP UNP | $69.3m0.25% | Reduced -25.8k |
| BRIGHTSPRING HEALTH SVCS INC BTSG 6.75 02.01.27 | $69.1m0.25% | Added +379 |
| PPL CAP FDG INC PPL 2.875 03.15.28 · principal | $68.7m0.25% | Reduced -578.0k |
| ALBEMARLE CORP ALB 7.25 03.01.27 | $68.7m0.25% | Reduced -7.2k |
| LIVE NATION ENTERTAINMENT IN LYV 2.875 01.15.30 · principal | $67.6m0.24% | Reduced -677.0k |
| AMERICAN EXPRESS CO AXP | $66.9m0.24% | Reduced -55.3k |
| RIVIAN AUTOMOTIVE INC RIVN 3.625 10.15.30 · principal | $66.5m0.24% | Unchanged |
| SEA LTD SEALTD 0.25 09.15.26 · principal | $66.0m0.24% | Unchanged |
| AMPHENOL CORP APH | $65.2m0.24% | Added +72.2k |
| LOWES COS INC LOW | $65.0m0.24% | Reduced -19.7k |
| KENVUE INC KVUE | $64.0m0.23% | Unchanged |
| ORACLE CORP ORCL | $63.4m0.23% | Added +16.8k |
| FIRSTENERGY CORP FE 3.875 01.15.31 · principal | $61.2m0.22% | New |
| TEXAS INSTRS INC TXN | $59.4m0.22% | Reduced -52.8k |
| ELECTRONIC ARTS INC EA | $58.8m0.21% | Added +40.9k |
| THERMO FISHER SCIENTIFIC INC TMO | $57.7m0.21% | Reduced -24.1k |
| TRAVERE THERAPEUTICS INC TVTX 0.5 05.15.32 · principal | $57.6m0.21% | New |
| FREEPORT-MCMORAN INC FCX | $54.6m0.20% | Added +53.9k |
Sold out since Q1 2026
| Security | Value then |
|---|---|
| WAYFAIR INC W 3.5 11.15.28 | $102.8m58.7m shares |
| DUKE ENERGY CORP NEW DUK 4.125 04.15.26 | $86.5m78.5m shares |
| LUMENTUM HLDGS INC LITE 0.5 12.15.26 | $84.5m12.0m shares |
| BLOOM ENERGY CORP BE 3 06.01.28 | $79.1m11.0m shares |
| ISHARES TR IWV | $57.1m153.9k shares |
| AMERICAN WTR CAP CORP AWK 3.625 06.15.26 | $55.6m55.7m shares |
| BLOCK INC XYZ 0 05.01.26 | $40.8m41.0m shares |
| HONEYWELL INTL INC | $37.1m82.1k shares |
| CSG SYS INTL INC CSGS 3.875 09.15.28 | $36.5m30.0m shares |
| CLEARWATER ANALYTICS HLDGS I | $32.6m1.4m shares |
| JAZZ INVESTMENTS I LTD JAZZ 2 06.15.26 | $31.6m25.9m shares |
| VENTAS RLTY LTD PARTNERSHIP VTR 3.75 06.01.26 | $26.5m17.8m shares |
| BP PLC BP | $22.3m475.0k shares |
| JOHN BEAN TECHNOLOGIES CORP JBTM 0.25 05.15.26 | $20.1m20.2m shares |
| SNAP INC SNAP 0.125 03.01.28 | $18.3m20.1m shares |
| ISHARES TR EFA | $17.6m181.1k shares |
| ALPHATEC HLDGS INC ATEC 0.75 03.15.30 | $17.1m16.7m shares |
| CARNIVAL CORP | $16.4m632.1k shares |
| ISHARES TR AGG | $14.2m143.4k shares |
| PROGRESS SOFTWARE CORP PRGS 1 04.15.26 | $12.5m12.5m shares |
| SPDR SER TR BIL | $11.8m129.0k shares |
| CALAMOS ETF TR CAIQ | $11.3m475.4k shares |
| SHIFT4 PMTS INC FOUR 0.5 08.01.27 | $10.8m11.5m shares |
| MOODYS CORP MCO | $10.6m24.2k shares |
| ZEBRA TECHNOLOGIES CORPORATI ZBRA | $9.3m44.5k shares |
Options (notional value)
| Underlying | Notional | Change |
|---|---|---|
| SPDR S&P 500 ETF TR SPY · Put | $810.8m1.2m shares | Added |
| SPDR S&P 500 ETF TR SPY · Call | $554.9m853.3k shares | Added |
| INVESCO QQQ TR QQQ · Put | $197.2m341.6k shares | Reduced |
| ISHARES TR EFA · Call | $168.0m1.7m shares | Added |
| ISHARES TR IWM · Call | $104.8m422.4k shares | Reduced |
| ISHARES TR IWM · Put | $94.9m382.8k shares | Reduced |
| INVESCO QQQ TR QQQ · Call | $89.5m155.0k shares | Reduced |
| ISHARES TR EFA · Put | $70.6m727.2k shares | Added |
| ISHARES TR EEM · Put | $68.3m1.2m shares | Added |
| ISHARES INC EWY · Put | $60.9m495.0k shares | New |
| VANECK ETF TRUST SMH · Call | $42.6m111.2k shares | Added |
| APPLE INC AAPL · Call | $39.4m155.2k shares | Added |
| WARNER BROS DISCOVERY INC WBD · Call | $32.8m1.2m shares | New |
| ISHARES TR INDA · Call | $26.7m570.5k shares | Added |
| MICROSOFT CORP MSFT · Call | $23.2m62.8k shares | Added |
| AMAZON COM INC AMZN · Call | $21.0m100.7k shares | Added |
| ISHARES SILVER TR SLV · Call | $12.3m180.0k shares | New |
| META PLATFORMS INC META · Call | $8.2m14.3k shares | Added |
| SPOTIFY TECHNOLOGY S A SPOT · Call | $8.0m16.5k shares | New |
| NETFLIX INC NFLX · Call | $6.9m71.7k shares | Added |
| FREEPORT-MCMORAN INC FCX · Call | $6.8m116.0k shares | Reduced |
| DIREXION SHS ETF TR QQQE · Call | $5.2m53.2k shares | Unchanged |
| LUMENTUM HLDGS INC LITE · Call | $4.2m6.0k shares | New |
| BROADCOM INC AVGO · Put | $4.2m13.5k shares | Added |
| SOUTHERN COPPER CORP SCCO · Call | $4.1m23.7k shares | Reduced |