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SEC Form 13F

Calamos Advisors LLC 13F Holdings

Inspect Calamos Advisors LLC's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-08-01T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-08-01
Reported value
$30,069,138,419
Positions
980
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Disclosed positions

Largest disclosed position values

Scale: 0 to 1,412,600,000 USD · zero baseline

Largest disclosed position values

  • NVDA · COM+1,412,610,189 USD
  • AAPL · COM+1,135,893,965 USD
  • CBOX · TAX AWA COLL ETF+1,077,880,003 USD
  • WDC · NOTE 3.000%11/1+825,099,042 USD
  • SPY · TR UNIT · Put+810,843,912 USD
  • MSFT · COM+762,840,075 USD
  • GOOGL · CAP STK CL A+721,696,922 USD
  • AMZN · COM+713,017,944 USD
  • SPY · TR UNIT · Call+554,935,122 USD
  • AVGO · COM+519,259,683 USD

Reported underlying-position values for 2026-06-30, publicly available 2026-08-01. Put/call values are not option premiums; this subset is not a complete portfolio allocation. Exact issuer, class and unit remain in the table. Showing the first 10 of 50 recorded values; the complete table remains available below.

Inspect all 50 displayed rows: Disclosed positions

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NVIDIA CORPORATIONNVDACOM$1,412,610,1897,059,874SHNone
APPLE INCAAPLCOM$1,135,893,9653,925,539SHNone
CALAMOS ETF TRCBOXTAX AWA COLL ETF$1,077,880,00310,693,254SHNone
WESTERN DIGITAL CORPWDCNOTE 3.000%11/1$825,099,04248,728,000PRNNone
STATE STR SPDR S&P 500 ETF TSPYTR UNIT$810,843,9121,246,800SHPut
MICROSOFT CORPMSFTCOM$762,840,0752,045,038SHNone
ALPHABET INCGOOGLCAP STK CL A$721,696,9222,019,467SHNone
AMAZON COM INCAMZNCOM$713,017,9442,991,600SHNone
STATE STR SPDR S&P 500 ETF TSPYTR UNIT$554,935,122853,300SHCall
BROADCOM INCAVGOCOM$519,259,6831,374,612SHNone
META PLATFORMS INCMETACL A$370,432,460657,623SHNone
MICRON TECHNOLOGY INCMUCOM$361,816,818313,454SHNone
ELI LILLY & COLLYCOM$339,439,889283,001SHNone
ALPHABET INCGOOGCAP STK CL C$320,545,216907,212SHNone
ADVANCED MICRO DEVICES INCAMDCOM$314,138,701540,770SHNone
TESLA INCTSLACOM$313,952,664746,440SHNone
ALPHABET INCUnresolvedDEP SHS RP1/20 A$237,293,7094,662,875SHNone
ALPHABET INCUnresolvedDEP SHS RP1/20 B$232,178,1604,615,868SHNone
JPMORGAN CHASE & COJPMCOM$231,875,335708,384SHNone
VISA INCVCOM CL A$226,942,713661,467SHNone
ALIBABA GROUP HLDG LTDBABANOTE 0.500% 6/0$223,223,388189,049,000PRNNone
APPLIED MATLS INCAMATCOM$219,354,585303,395SHNone
INVESCO QQQ TRQQQUNIT SER 1$197,164,688341,600SHPut
BOEING COBADEP CONV PFD A$185,409,1452,754,965SHNone
HEWLETT PACKARD ENTERPRISE CHPE7.625 MAND CONV$183,512,1701,586,652SHNone
ORACLE CORPORCL6.5 DEP CUM SR D$178,757,3403,976,804SHNone
INTEL CORPINTCCOM$177,093,4271,268,305SHNone
ISHARES TREFAMSCI EAFE ETF$168,034,9001,730,000SHCall
GOLDMAN SACHS GROUP INCGSCOM$167,595,134165,711SHNone
JOHNSON & JOHNSONJNJCOM$164,374,971647,222SHNone
CATERPILLAR INCCATCOM$160,012,939150,261SHNone
LAM RESEARCH CORPLRCXCOM NEW$158,353,949365,435SHNone
EXXON MOBIL CORPXOMCOM$155,295,6001,135,866SHNone
WALMART INCWMTCOM$154,367,8301,362,951SHNone
MKS INC.MKSINOTE 1.250% 6/0$149,859,61550,767,000PRNNone
SNOWFLAKE INCSNOWNOTE 10/0$148,396,48683,995,000PRNNone
ON SEMICONDUCTOR CORPONNOTE 0.500% 3/0$147,703,593122,336,000PRNNone
GE VERNOVA INCGEVCOM$145,278,488123,656SHNone
CISCO SYS INCCSCOCOM$138,475,2381,178,914SHNone
UNITEDHEALTH GROUP INCUNHCOM$128,587,194309,379SHNone
DOORDASH INCUnresolvedNOTE 5/1$126,423,024128,612,000PRNNone
BERKSHIRE HATHAWAY INC DELBRK.BCL B NEW$126,313,448252,430SHNone
BANK OF AMER CORPBACCOM$125,769,7892,207,262SHNone
MASTERCARD INCORPORATEDMACL A$122,729,856238,960SHNone
CLOUDFLARE INCUnresolvedNOTE 6/1$121,043,76195,422,000PRNNone
CYBERARK SOFTWARE LTDUnresolvedNOTE 6/1$120,745,23572,437,000PRNNone
AKAMAI TECHNOLOGIES INCUnresolvedNOTE 0.250% 5/1$114,262,91378,152,000PRNNone
WELLS FARGO & COWFCCOM$112,898,8841,366,153SHNone
MICROCHIP TECHNOLOGY INC.MCHPDEP SHS REPSTG$111,891,8141,458,634SHNone
PPL CORPPPLUNIT 02/15/2029$109,729,5492,236,184SHNone

Largest 50 positions by reported value; the filing may contain more positions.

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NVIDIA CORPORATIONNVDACOM$1,412,610,1897,059,874SHNone

First displayed source row from Disclosed positions. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-06-30 and its public availability date is 2026-08-01. Subtracting those calendar dates gives 32 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

Read the amount together with its Unit and Option columns. A reported put or call position is not an option premium paid, and a quarterly holding is not a purchase made on its public filing date. Check every accession in the effective amendment lineage below: a retained holding can originate in an earlier filing rather than the latest linked amendment.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 177 positions lack a resolved ticker and 38 positions are put or call entries.

The displayed holdings combine the effective filing versions listed here. The latest receipt linked below identifies the current projection version; it is not proof that every retained holding originated in that latest amendment. Inspect all effective accessions when verifying a position's source.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Show the table · 1 row, 2 columns
Effective SEC accessionRole in this view
0001316507-26-000003Latest effective version

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.