Calamos Advisors LLC
CIK
1316507
Location
NAPERVILLE, IL
Portfolio Value
Large
$19,333,364,305
Diversification
Diversified
Filing Date
Global Rank
#277
/ 8,588
▲ 17
Top Industry
Semiconductors
14.1%
3Y Alpha vs SPY
-2.3%
Period ended 3 months ago
Filed May 4, 2026 · 44d
25 quarters · since Mar 2020
Clone Performance
Jun 2023–Jun 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+68.1%
SPY
+76.8%
Annualised alpha
-2.0%
Max drawdown
−19.7%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
681 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
8.1%
+0.5 pts
Top 5
30.3%
+0.3 pts
Top 10
42.8%
−1.4 pts
HHI
254
Diversified+1
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 31.0% | $5,991,986,031 |
| Unclassified | 10.8% | $2,096,782,000 |
| Financial Services | 10.2% | $1,966,029,796 |
| Consumer Cyclical | 9.8% | $1,886,980,194 |
| Healthcare | 8.8% | $1,696,023,962 |
| Communication Services | 8.7% | $1,679,750,970 |
| Industrials | 8.1% | $1,566,359,982 |
| Consumer Defensive | 4.6% | $886,566,155 |
| Energy | 3.9% | $744,502,277 |
| Basic Materials | 1.7% | $337,096,967 |
| Utilities | 1.5% | $284,425,373 |
| Real Estate | 1.0% | $196,860,598 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| NOK | Nokia Corp | +1,331,000 | 3,278,300 | $26,357,532 | |
| AES | Aes Corp | +1,316,058 | 1,661,824 | $23,415,100 | |
| WBD | Warner Bros. Discovery, Inc. | +1,024,996 | 1,150,350 | $31,588,611 | |
| NVDA | Nvidia Corp | +881,691 | 8,196,787 | $1,429,519,652 | |
| AAPL | Apple Inc. | +802,037 | 4,787,595 | $1,215,043,735 | |
| SPY | Spdr S&P 500 ETF Trust | +747,036 | 2,414,103 | $1,569,987,745 | |
| KVUE | Kenvue Inc. | +651,000 | 3,351,000 | $57,771,240 | |
| NU | Nu Holdings Ltd. | +395,631 | 436,531 | $6,272,950 | |
| ASTS | AST SpaceMobile, Inc. | +376,423 | 386,123 | $31,998,013 | |
| ANET | Arista Networks, Inc. | +360,116 | 526,164 | $64,602,415 | |
| NCLH | Norwegian Cruise Line Holdings Ltd. | +337,000 | 730,795 | $13,665,866 | |
| AMZN | Amazon Com Inc | +332,897 | 3,481,660 | $725,125,328 | |
| MSFT | Microsoft Corp | +277,758 | 2,430,907 | $899,848,844 | |
| GOOGL | Alphabet Inc. | +271,146 | 2,564,613 | $737,480,114 | |
| AVGO | Broadcom Inc. | +249,806 | 1,658,320 | $513,266,623 | |
| AMPX | Amprius Technologies, Inc. | +245,473 | 364,506 | $6,145,570 | |
| SO | Southern Co | +223,978 | 420,625 | $40,598,725 | |
| ABNB | Airbnb, Inc. | +213,014 | 215,655 | $27,232,913 | |
| DDOG | Datadog, Inc. | +212,871 | 287,464 | $33,935,125 | |
| JHX | James Hardie Industries plc | +207,567 | 993,270 | $18,812,533 | |
| GILD | Gilead Sciences, Inc. | +187,021 | 412,590 | $57,502,668 | |
| DASH | DoorDash, Inc. | +163,232 | 335,118 | $50,317,967 | |
| PLD | Prologis, Inc. | +140,522 | 336,518 | $44,480,949 | |
| TXN | Texas Instruments Inc | +139,337 | 252,076 | $48,938,034 | |
| NRO | Neuberger Real Estate Securities Income Fund Inc | +137,195 | 354,913 | $1,007,952 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| HBAN | Huntington Bancshares Inc /Md/ | −516,500 | 404,397 | $6,328,813 | |
| T | At&T Inc. | −453,477 | 1,271,092 | $36,848,957 | |
| HAL | Halliburton Co | −388,400 | 269,500 | $10,507,805 | |
| EQT | EQT Corp | −287,593 | 300,683 | $19,135,466 | |
| RKLB | Rocket Lab Corp | −221,587 | 24,393 | $1,566,518 | |
| NEE | Nextera Energy Inc | −197,537 | 538,400 | $50,006,592 | |
| BBD | Bank Bradesco | −186,700 | 193,810 | $707,406 | |
| SLB | Slb Limited/Nv | −177,868 | 318,146 | $16,349,522 | |
| NOW | ServiceNow, Inc. | −166,162 | 304,355 | $31,820,315 | |
| RSI | Rush Street Interactive, Inc. | −155,879 | 315,092 | $6,853,250 | |
| ADPT | Adaptive Biotechnologies Corp | −125,216 | 58,808 | $816,254 | |
| ABT | Abbott Laboratories | −122,909 | 378,774 | $38,888,726 | |
| PFE | Pfizer Inc | −113,617 | 1,805,659 | $50,702,904 | |
| QQQ | Invesco Qqq Trust, Series 1 | −84,895 | 765,765 | $441,984,242 | |
| CBOE | Cboe Global Markets, Inc. | −83,865 | 802 | $225,418 | |
| CX | Cemex Sab De CV | −79,100 | 97,705 | $1,117,745 | |
| MU | Micron Technology Inc | −76,542 | 322,206 | $108,854,075 | |
| RDVT | Red Violet, Inc. | −72,901 | 7,863 | $272,059 | |
| MDT | Medtronic plc | −67,872 | 602,965 | $52,246,917 | |
| WFC | Wells Fargo & Company/Mn | −63,123 | 1,682,021 | $133,905,691 | |
| APTV | Aptiv PLC | −61,266 | 136,614 | $9,486,476 | |
| ADI | Analog Devices Inc | −56,869 | 101,188 | $32,191,950 | |
| BSX | Boston Scientific Corp | −53,971 | 817,686 | $51,309,796 | |
| BDJ | BlackRock Enhanced Equity Dividend Trust | −46,952 | 64,725 | $557,929 | |
| PEGA | Pegasystems Inc | −43,826 | 7,003 | $298,047 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| USO | United States Oil Fund, LP | 580,000 | $73,805,000 | |
| EA | Electronic Arts Inc. | 246,057 | $50,163,640 | |
| PBR | Petrobras - Petroleo Brasileiro SA | 1,776,900 | $36,870,675 | |
| CWAN | Clearwater Analytics Holdings, Inc. | 1,377,682 | $32,582,179 | |
| DAR | Darling Ingredients Inc. | 417,139 | $25,800,047 | |
| BHF | Brighthouse Financial, Inc. | 391,771 | $23,459,247 | |
| RPRX | Royalty Pharma plc | 437,090 | $20,967,207 | |
| SNDK | Sandisk Corp | 23,165 | $14,717,651 | |
| WDC | Western Digital Corp | 49,820 | $13,475,811 | |
| CAH | Cardinal Health Inc | 55,500 | $11,727,705 | |
| SCCO | Southern Copper Corp/ | 65,669 | $11,299,008 | |
| MCO | Moodys Corp /De/ | 24,196 | $10,555,505 | |
| STX | Seagate Technology Holdings plc | 23,213 | $9,093,924 | |
| SKM | Sk Telecom Co Ltd | 309,483 | $9,064,757 | |
| DGX | Quest Diagnostics Inc | 43,506 | $8,526,305 | |
| NDAQ | Nasdaq, Inc. | 85,920 | $7,293,748 | |
| AZN | Astrazeneca PLC | 33,768 | $6,659,724 | |
| CF | CF Industries Holdings, Inc. | 50,603 | $6,570,293 | |
| UCTT | Ultra Clean Holdings, Inc. | 89,869 | $5,588,053 | |
| CAVA | Cava Group, Inc. | 64,102 | $5,185,851 | |
| IX | Orix Corp | 163,340 | $4,898,566 | |
| BKR | Baker Hughes Co | 74,000 | $4,517,700 | |
| VIAV | Viavi Solutions Inc. | 129,117 | $4,297,012 | |
| TM | Toyota Motor Corp/ | 20,763 | $4,279,046 | |
| PSMT | Pricesmart Inc | 27,675 | $4,165,087 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| TGNA | TEGNA INC | 1,665,326 | $32,323,977 | |
| FROG | JFrog Ltd | 223,696 | $13,972,051 | |
| COHR | Coherent Corp. | 59,357 | $10,955,521 | |
| URBN | Urban Outfitters Inc | 142,500 | $10,724,550 | |
| HOOD | Robinhood Markets, Inc. | 93,660 | $10,592,946 | |
| VCIC | Vine Hill Capital Investment Corp. | 925,000 | $9,962,250 | |
| PINS | Pinterest, Inc. | 236,000 | $6,110,040 | |
| MTCH | Match Group, Inc. | 178,590 | $5,766,671 | |
| PAYC | Paycom Software, Inc. | 35,890 | $5,719,430 | |
| ADMA | Adma Biologics, Inc. | 292,426 | $5,333,850 | |
| ICLR | Icon PLC | 26,500 | $4,828,830 | |
| BOOT | Boot Barn Holdings, Inc. | 26,177 | $4,619,455 | |
| CRDO | Credo Technology Group Holding Ltd | 30,832 | $4,436,415 | |
| ARGX | Argenx SE | 4,640 | $3,902,008 | |
| BBIO | BridgeBio Pharma, Inc. | 45,044 | $3,445,415 | |
| HRI | Herc Holdings Inc | 22,340 | $3,314,808 | |
| SGHC | Super Group (SGHC) Ltd | 244,951 | $2,927,164 | |
| AWI | Armstrong World Industries Inc | 15,018 | $2,869,939 | |
| APPN | Appian Corp | 72,473 | $2,566,992 | |
| PLMR | Palomar Holdings, Inc. | 17,396 | $2,344,284 | |
| MNKD | Mannkind Corp | 370,718 | $2,101,970 | |
| EXTR | Extreme Networks Inc | 111,894 | $1,863,035 | |
| MGNI | Magnite, Inc. | 113,457 | $1,841,406 | |
| MIAX | Miami International Holdings, Inc. | 41,364 | $1,835,733 | |
| SKWD | Skyward Specialty Insurance Group, Inc. | 32,465 | $1,659,285 | |
| No positions match the current search. | ||||
681 positions ·
$19,333,364,305 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Utilities
Showing 1–50
of 681 positions by value
· page 1 of 14
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| SPY |
Spdr S&P 500 ETF Trust
|
Added | 2,414,103 | $1,569,987,745 | 8.12% | |
| NVDA |
Nvidia Corp
Technology
|
Added | 8,196,787 | $1,429,519,652 | 7.39% | |
| AAPL |
Apple Inc.
Technology
|
Added | 4,787,595 | $1,215,043,735 | 6.28% | |
| MSFT |
Microsoft Corp
Technology
|
Added | 2,430,907 | $899,848,844 | 4.65% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Added | 2,564,613 | $737,480,114 | 3.81% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Added | 3,481,660 | $725,125,328 | 3.75% | |
| AVGO |
Broadcom Inc.
Technology
|
Added | 1,658,320 | $513,266,623 | 2.65% | |
| QQQ |
Invesco Qqq Trust, Series 1
|
Reduced | 765,765 | $441,984,242 | 2.29% | |
| META |
Meta Platforms, Inc.
Communication Services
|
Added | 745,002 | $426,237,994 | 2.20% | |
| TSLA |
Tesla, Inc.
Consumer Cyclical
|
Added | 843,050 | $313,403,837 | 1.62% | |
| LLY |
ELI LILLY & Co
Healthcare
|
Added | 308,497 | $283,746,285 | 1.47% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
Added | 804,936 | $236,779,973 | 1.22% | |
| V |
Visa Inc.
Financial Services
|
Added | 761,893 | $230,274,540 | 1.19% | |
| XOM |
Exxon Mobil Corp
Energy
|
Added | 1,282,150 | $217,529,569 | 1.13% | |
| WMT |
Walmart Inc.
Consumer Defensive
|
Added | 1,573,652 | $195,573,470 | 1.01% | |
| JNJ |
Johnson & Johnson
Healthcare
|
Added | 773,100 | $188,976,564 | 0.98% | |
| NFLX |
Netflix Inc
Communication Services
|
Added | 1,749,767 | $168,240,097 | 0.87% | |
| GS |
Goldman Sachs Group Inc
Financial Services
|
Added | 170,881 | $144,563,617 | 0.75% | |
| CVX |
Chevron Corp
Energy
|
Added | 691,326 | $143,035,349 | 0.74% | |
| WFC |
Wells Fargo & Company/Mn
Financial Services
|
Reduced | 1,682,021 | $133,905,691 | 0.69% | |
| GEV |
GE Vernova Inc.
Industrials
|
Added | 152,890 | $133,457,681 | 0.69% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Added | 273,861 | $131,234,191 | 0.68% | |
| MA |
Mastercard Inc
Financial Services
|
Added | 248,453 | $124,142,025 | 0.64% | |
| LIN |
Linde PLC
Basic Materials
|
Added | 226,871 | $112,473,566 | 0.58% | |
| BAC |
Bank Of America Corp /De/
Financial Services
|
Reduced | 2,291,150 | $111,693,562 | 0.58% | |
| PLTR |
Palantir Technologies Inc.
Technology
|
Added | 744,854 | $108,957,243 | 0.56% | |
| MU |
Micron Technology Inc
Technology
|
Reduced | 322,206 | $108,854,075 | 0.56% | |
| HD |
Home Depot, Inc.
Consumer Cyclical
|
Added | 328,049 | $107,892,035 | 0.56% | |
| AMAT |
Applied Materials Inc /De
Technology
|
Added | 310,090 | $105,985,661 | 0.55% | |
| ABBV |
AbbVie Inc.
Healthcare
|
Added | 483,670 | $105,193,388 | 0.54% | |
| MRK |
Merck & Co., Inc.
Healthcare
|
Added | 831,663 | $100,040,742 | 0.52% | |
| PM |
Philip Morris International Inc.
Consumer Defensive
|
Added | 592,924 | $98,034,054 | 0.51% | |
| AMD |
Advanced Micro Devices Inc
Technology
|
Added | 479,528 | $97,550,381 | 0.50% | |
| RTX |
RTX Corp
Industrials
|
Added | 503,016 | $97,031,786 | 0.50% | |
| CAT |
Caterpillar Inc
Industrials
|
Added | 134,683 | $95,417,518 | 0.49% | |
| COST |
Costco Wholesale Corp /New
Consumer Defensive
|
Added | 92,606 | $92,275,396 | 0.48% | |
| CSCO |
Cisco Systems, Inc.
Technology
|
Added | 1,163,426 | $90,270,223 | 0.47% | |
| LRCX |
Lam Research Corp
Technology
|
Added | 413,151 | $88,273,842 | 0.46% | |
| MS |
Morgan Stanley
Financial Services
|
Added | 535,714 | $88,162,452 | 0.46% | |
| C |
Citigroup Inc
Financial Services
|
Added | 733,611 | $83,198,823 | 0.43% | |
| GE |
General Electric Co
Industrials
|
Added | 288,935 | $81,991,084 | 0.42% | |
| MPC |
Marathon Petroleum Corp
Energy
|
Added | 319,159 | $77,932,244 | 0.40% | |
| UNP |
Union Pacific Corp
Industrials
|
Added | 316,779 | $76,856,920 | 0.40% | |
| AXP |
American Express Co
Financial Services
|
Added | 253,116 | $76,562,527 | 0.40% | |
| ISRG |
Intuitive Surgical Inc
Healthcare
|
Added | 165,835 | $76,448,276 | 0.40% | |
| KO |
Coca Cola Co
Consumer Defensive
|
Added | 999,207 | $75,989,692 | 0.39% | |
| LOW |
Lowes Companies Inc
Consumer Cyclical
|
Reduced | 314,574 | $74,327,544 | 0.38% | |
| USO |
United States Oil Fund, LP
|
NEW | 580,000 | $73,805,000 | 0.38% | |
| TJX |
Tjx Companies Inc /De/
Consumer Cyclical
|
Added | 457,769 | $73,105,709 | 0.38% | |
| PG |
PROCTER & GAMBLE Co
Consumer Defensive
|
Added | 498,687 | $72,030,350 | 0.37% |