Calamos Advisors LLC holds a diversified book of 1144 stocks worth $25.9B as of Q1 2026 (disclosed May 4, 2026, a ~45-day 13F lag). This quarter they opened Oracle Corp and trimmed Western Digital Corp. Their largest long position is Nvidia Corp at 6% of the equity book. They also disclosed $1.2B in put options (a bearish bet) and $1.1B in call options (bullish), shown separately below and excluded from the equity book.
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Use Arkolith to show Calamos Advisors LLC's latest holdings, largest changes, and filing provenance.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
67% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Nvidia Corporation COM | $1.4B | 8.19M | 5.5% | ▲+13% Added · +971K sh | |
| 2 | Apple Inc COM | $1.2B | 4.78M | 4.7% | ▲+20% Added · +804K sh | |
| 3 | Microsoft Corp COM | $879.3M | 2.38M | 3.4% | ▲+12% Added · +247K sh | |
| 4 | Alphabet Inc CAP STK CL A | $735.6M | 2.56M | 2.8% | ▲+12% Added · +273K sh | |
| 5 | Amazon Com Inc COM | $709.3M | 3.41M | 2.7% | ▲+8.4% Added · +265K sh | |
| 6 | Broadcom Inc COM | $511.4M | 1.65M | 2.0% | ▲+19% Added · +269K sh | |
| 7 | State STR SPDR S&P 500 ETF T TR UNIT | $458.6M | 705.1K | 1.8% | ▲+441% Added · +575K sh | |
| 8 | Meta Platforms Inc CL A | $418.2M | 730.9K | 1.6% | ▲+10% Added · +68K sh | |
| 9 | Western Digital Corp NOTE 3.000%11/1 | $398.9M | 55.62M | 1.5% | ▼−27% Reduced · −20.8M sh | |
| 10 | Tesla Inc COM | $312.8M | 841.5K | 1.2% | ▲+5.4% Added · +43K sh | |
| 11 | Alphabet Inc CAP STK CL C | $287.4M | 1.00M | 1.1% | ▲+8.4% Added · +78K sh | |
| 12 | Eli Lilly & Co COM | $283.7M | 308.5K | 1.1% | ▲+13% Added · +36K sh | |
| 13 | Alibaba Group Hldg Ltd NOTE 0.500% 6/0 | $262.4M | 189.04M | 1.0% | ▼−1.6% Reduced · −3.1M sh | |
| 14 | JPMorgan Chase & Co COM | $236.8M | 804.9K | 0.9% | ▲+13% Added · +92K sh | |
| 15 | Visa Inc COM CL A | $230.3M | 761.9K | 0.9% | ▲+9.2% Added · +64K sh | |
| 16 | Exxon Mobil Corp COM | $217.5M | 1.28M | 0.8% | ▲+9.2% Added · +108K sh | |
| 17 | Walmart Inc COM | $194.8M | 1.57M | 0.8% | ▲+6.0% Added · +88K sh | |
| 18 | Johnson & Johnson COM | $189.0M | 773.1K | 0.7% | ▲+19% Added · +122K sh | |
| 19 | Boeing Co DEP CONV PFD A | $185.8M | 2.86M | 0.7% | ▼−7.9% Reduced · −247K sh | |
| 20 | Oracle Corp 6.5 DEP CUM SR D | $183.8M | 4.08M | 0.7% | ▲New New position | |
| 21 | Ishares TR CORE S&P500 ETF | $178.4M | 273.1K | 0.7% | ▲20× Added · +259K sh | |
| 22 | Netflix Inc. COM | $167.8M | 1.74M | 0.6% | ▲+8.5% Added · +137K sh | |
| 23 | Goldman Sachs Group Inc COM | $144.6M | 170.9K | 0.6% | ▲+0.3% Added · +484 sh | |
| 24 | Chevron Corporation COM | $143.0M | 691.3K | 0.6% | ▲+13% Added · +77K sh | |
| 25 | Wells Fargo & Co COM | $133.9M | 1.68M | 0.5% | ▼−3.6% Reduced · −63K sh | |
| 26 | Ge Vernova Inc COM | $133.5M | 152.9K | 0.5% | ▲+16% Added · +21K sh | |
| 27 | Ishares TR S&P 500 GRWT ETF | $132.2M | 1.17M | 0.5% | ▲27× Added · +1.1M sh | |
| 28 | Berkshire Hathaway Inc Del CL B NEW | $131.2M | 273.9K | 0.5% | ▲+6.5% Added · +17K sh | |
| 29 | Ishares TR S&P 500 VAL ETF | $130.7M | 619.1K | 0.5% | ▲27× Added · +596K sh | |
| 30 | MKS Inc. NOTE 1.250% 6/0 | $129.8M | 78.27M | 0.5% | ▼−12% Reduced · −10.3M sh | |
| 31 | Mastercard Incorporated CL A | $124.1M | 248.5K | 0.5% | ▲+3.2% Added · +8K sh | |
| 32 | Lumentum Hldgs Inc NOTE 1.500%12/1 | $114.8M | 11.39M | 0.4% | ▼−7.0% Reduced · −862K sh | |
| 33 | PPL Corp UNIT 02/15/2029 | $114.7M | 2.24M | 0.4% | ▲New New position | |
| 34 | Bank America Corp COM | $111.7M | 2.29M | 0.4% | ▼−1.1% Reduced · −26K sh | |
| 35 | Linde PLC SHS | $111.7M | 225.3K | 0.4% | ▲+14% Added · +27K sh | |
| 36 | Micron Technology Inc COM | $108.9M | 322.2K | 0.4% | ▼−19% Reduced · −77K sh | |
| 37 | Uber Technologies Inc NOTE 0.875%12/0 | $108.8M | 90.01M | 0.4% | ▼−4.1% Reduced · −3.9M sh | |
| 38 | Palantir Technologies Inc CL A | $108.5M | 741.7K | 0.4% | ▲+22% Added · +132K sh | |
| 39 | Home Depot Inc COM | $107.9M | 328.0K | 0.4% | ▲+21% Added · +57K sh | |
| 40 | NextEra Energy Inc UNIT 02/15/2029 | $107.1M | 2.13M | 0.4% | ▲New New position | |
| 41 | Southern Co UNIT 12/15/2028 | $107.0M | 2.08M | 0.4% | ▼−16% Reduced · −404K sh | |
| 42 | Microchip Technology Inc. DEP SHS REPSTG | $106.9M | 1.88M | 0.4% | ▲+11% Added · +191K sh | |
| 43 | Advanced Energy Inds NOTE 2.500% 9/1 | $105.8M | 44.07M | 0.4% | ▲+1.3% Added · +585K sh | |
| 44 | Abbvie Inc COM | $105.2M | 483.7K | 0.4% | ▲+3.7% Added · +17K sh | |
| 45 | Applied Matls Inc COM | $105.0M | 307.1K | 0.4% | ▲+42% Added · +90K sh | |
| 46 | On Semiconductor Corp NOTE 0.500% 3/0 | $104.4M | 106.20M | 0.4% | ▼−0.4% Reduced · −390K sh | |
| 47 | Wayfair Inc NOTE 3.500%11/1 | $102.8M | 58.74M | 0.4% | ▼−4.7% Reduced · −2.9M sh | |
| 48 | Rivian Automotive Inc NOTE 4.625% 3/1 | $98.5M | 91.95M | 0.4% | ▲+20% Added · +15.1M sh | |
| 49 | Philip Morris Intl Inc COM | $98.0M | 592.9K | 0.4% | ▲+5.9% Added · +33K sh | |
| 50 | Advanced Micro Devices Inc COM | $97.2M | 477.9K | 0.4% | ▲+29% Added · +107K sh |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | SS SPDR S&P 500 ETF TRUST-USSPY | $613.9M | 900K |
| CALL · bullish | SS SPDR S&P 500 ETF TRUST-USSPY | $551.5M | 809K |
| PUT · bearish | INVESCO QQQ TRUST SERIES 1QQQ | $327.3M | 533K |
| CALL · bullish | INVESCO QQQ TRUST SERIES 1QQQ | $130.9M | 213K |
| CALL · bullish | ISHARES RUSSELL 2000 ETFIWM | $117.1M | 476K |
| PUT · bearish | ISHARES RUSSELL 2000 ETFIWM | $112.1M | 455K |
| CALL · bullish | ISHARES MSCI EAFE ETFEFA | $67.2M | 700K |
| PUT · bearish | ISHARES MSCI EAFE ETFEFA | $48.5M | 505K |
| PUT · bearish | ISHARES MSCI EMERGING MARKETEEM | $46.0M | 842K |
| PUT · bearish | UNITED STATES OIL FUND LPUSO | $40.1M | 580K |
| CALL · bullish | MICROSOFT CORPMSFT | $26.8M | 55K |
| CALL · bullish | VANECK SEMICONDUCTOR ETFSMH | $26.6M | 74K |
| CALL · bullish | KRANESH CSI CHINA INTERNETKWEB | $25.7M | 755K |
| CALL · bullish | ISHARES MSCI INDIA ETFINDA | $25.1M | 464K |
| CALL · bullish | PETROLEO BRASILEIRO-SPON ADRPBR | $20.9M | 1.8M |
| CALL · bullish | AMAZON.COM INCAMZN | $17.3M | 75K |
| CALL · bullish | DARLING INGREDIENTS INCDAR | $14.0M | 388K |
| CALL · bullish | INTUIT INCINTU | $11.9M | 18K |
| CALL · bullish | 3M COMMM | $11.4M | 71K |
| CALL · bullish | NIKE INC -CL BNKE | $9.6M | 151K |
| CALL · bullish | NOKIA CORP-SPON ADRNOK | $8.7M | 1.3M |
| CALL · bullish | CANADIAN PACIFIC KANSAS CITYCP | $8.4M | 114K |
| CALL · bullish | UNION PACIFIC CORPUNP | $8.3M | 36K |
| PUT · bearish | META PLATFORMS INC-CLASS AMETA | $8.3M | 13K |
| CALL · bullish | NORWEGIAN CRUISE LINE HOLDINNCLH | $7.5M | 337K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above. Showing the largest 25 of 52 option legs.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 4, 2026 | 1,269 | $28.2B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Jan 29, 2026 | 997 | $26.6B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 20, 2025 | 1,003 | $27.1B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 8, 2025 | 991 | $25.4B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 29, 2025 | 987 | $23.0B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jan 24, 2025 | 1,059 | $23.9B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 7, 2024 | 1,072 | $23.1B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Jul 25, 2024 | 1,087 | $22.5B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 8, 2024 | 1,097 | $21.1B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Jan 31, 2024 | 1,062 | $20.6B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Oct 26, 2023 | 1,066 | $19.2B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Jul 28, 2023 | 1,127 | $20.2B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 4, 2023 | 1,256 | $20.5B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Jan 26, 2023 | 1,342 | $21.3B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Oct 24, 2022 | 1,489 | $21.9B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 1, 2022 | 1,350 | $23.2B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 3, 2022 | 1,405 | $26.6B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 1, 2022 | 1,353 | $26.7B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Oct 26, 2021 | 1,214 | $22.9B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Jul 22, 2021 | 1,224 | $21.9B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | Apr 12, 2021 | 1,180 | $18.3B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Jan 27, 2021 | 990 | $17.2B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Oct 26, 2020 | 945 | $15.5B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Jul 27, 2020 | 960 | $14.1B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.