Q2 2026 13F · SEC CIK 1316507

Calamos Advisors LLC

Mutual fund managerFiled 2026-07-31 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $21.6B
Reported positions: 769
Top holdings a year, 3 yrs: +26.2%
Assets under management: $43.9B

Calamos Advisors LLC is a mutual fund manager that reported 769 positions worth $21.6B in its Q2 2026 13F, filed 2026-07-31. Its largest holdings were Nvidia Corporation Com (NVDA, 6.5%), Apple Inc (AAPL, 5.2%), Calamos ETF Tr (CBOX, 5.0%). A portfolio copying its top holdings returned 26.2% a year over the last 3 years, against 20.4% for the S&P 500.

Calamos Advisors LLC holdings largest 50 of 769 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Calamos Advisors LLC 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
NVDANvidia Corporation Com	6.5%	6.9%	7,059,874	-13.8%	$1.4B
AAPLApple Inc	5.2%	5.8%	3,925,539	-17.9%	$1.1B
CBOXCalamos ETF Tr	5.0%	—	10,693,254	—	$1.1B
MSFTMicrosoft Corp	3.5%	4.2%	2,045,038	-13.9%	$762.8M
GOOGLAlphabet Inc	3.3%	3.5%	2,019,467	-21.1%	$721.7M
AMZNAmazon Com Inc Com	3.3%	3.4%	2,991,600	-12.2%	$713.0M
AVGOBroadcom Inc	2.4%	2.5%	1,374,612	-16.8%	$519.3M
METAMeta Platforms Inc Class A	1.7%	2.0%	657,623	-10.0%	$370.4M
MUMicron Technology Inc	1.7%	0.5%	313,454	-2.7%	$361.8M
LLYLilly Eli & Co	1.6%	1.4%	283,001	-8.3%	$339.4M
GOOGAlphabet Inc	1.5%	1.4%	907,212	-9.4%	$320.5M
AMDAdvanced Micro Devices Inc	1.5%	0.5%	540,770	+13.1%	$314.1M
TSLATesla Inc Com	1.4%	1.5%	746,440	-11.3%	$314.0M
GOOGMAlphabet Inc	1.1%	—	4,662,875	—	$237.3M
GOOGNAlphabet Inc	1.1%	—	4,615,868	—	$232.2M
JPMJpmorgan Chase & Co	1.1%	1.1%	708,384	-12.0%	$231.9M
VVisa Inc Com Cl A	1.0%	1.1%	661,467	-13.2%	$226.9M
AMATApplied Matls Inc	1.0%	0.5%	303,395	-1.2%	$219.4M
097023204Boeing Co	0.9%	0.9%	2,754,965	-3.8%	$185.4M
42824C208Hewlett Packard Enterprise C 7.625 Mand	0.8%	0.4%	1,586,652	+13.9%	$183.5M
68389X204Oracle Corp	0.8%	0.9%	3,976,804	-2.6%	$178.8M
INTCIntel Corp	0.8%	—	1,268,305	—	$177.1M
GSGoldman Sachs Group Inc	0.8%	0.7%	165,711	-3.0%	$167.6M
JNJJohnson & Johnson	0.8%	0.9%	647,222	-16.3%	$164.4M
CATCaterpillar Inc Com	0.7%	0.5%	150,261	+11.6%	$160.0M
LRCXLam Research Corp	0.7%	0.4%	365,435	-11.5%	$158.4M
XOMExxon Mobil Corp	0.7%	1.0%	1,135,866	-11.4%	$155.3M
WMTWalmart Inc	0.7%	0.9%	1,362,951	-13.0%	$154.4M
GEVGe Vernova Inc	0.7%	0.6%	123,656	-19.1%	$145.3M
CSCOCisco Sys Inc	0.6%	0.4%	1,178,914	+1.8%	$138.5M
UNHUnitedhealth Group Inc Com	0.6%	—	309,379	—	$128.6M
BRK-BBerkshire Hathaway Inc Del	0.6%	0.6%	252,430	-7.8%	$126.3M
BACBank of Amer Corp	0.6%	0.5%	2,207,262	-3.7%	$125.8M
MAMastercard Inc.	0.6%	0.6%	238,960	-3.8%	$122.7M
WFCWells Fargo Co New	0.5%	0.6%	1,366,153	-18.8%	$112.9M
MCHPPMicrochip Technology Inc.	0.5%	0.5%	1,458,634	-22.2%	$111.9M
PPLCPpl Corp	0.5%	0.6%	2,236,184	+0.0%	$109.7M
LINLinde PLC	0.5%	0.5%	206,610	-8.3%	$107.2M
PMPhilip Morris Intl Inc Com	0.5%	0.5%	581,825	-1.9%	$105.3M
SOMNSouthern Co	0.5%	0.5%	2,115,625	+1.6%	$105.2M
GEGe Aerospace	0.5%	—	277,306	—	$103.6M
CCitigroup Inc Com New	0.5%	—	735,465	—	$102.9M
NEE-PQNextera Energy Inc	0.5%	0.5%	2,125,337	-0.4%	$101.9M
ABBVAbbvie Inc	0.5%	0.5%	399,893	-17.3%	$100.6M
NFLXNetflix Inc Total	0.5%	0.8%	1,382,807	-20.8%	$98.7M
HDHome Depot Inc Com	0.4%	0.5%	264,087	-19.5%	$93.1M
MSMorgan Stanley Com New	0.4%	0.4%	442,354	-17.4%	$92.5M
CVXChevron Corp New	0.4%	0.7%	555,706	-19.6%	$92.1M
RTXRtx Corporation Com	0.4%	0.5%	479,675	-4.6%	$91.0M
PANWPalo Alto Networks Inc	0.4%	—	245,320	—	$83.7M

What Calamos Advisors LLC bought and sold in Q2 2026, against Q1 2026.

New positions

Q1 2026's filing was too long to tell new positions apart.

Added to

Hewlett Packard Enterprise C 7.625 Mand+13.9% shares
AMD Advanced Micro Devices Inc+13.1% shares
CAT Caterpillar Inc Com+11.6% shares

Reduced

MCHPP Microchip Technology Inc.-22.2% shares
GOOGL Alphabet Inc-21.1% shares
NFLX Netflix Inc Total-20.8% shares
CVX Chevron Corp New-19.6% shares
HD Home Depot Inc Com-19.5% shares
GEV Ge Vernova Inc-19.1% shares
WFC Wells Fargo Co New-18.8% shares
AAPL Apple Inc-17.9% shares

Left the top 50

SPY Spdr S&p 500 ETF Trwas 2.2%
IVV Ishares Core S&p 500 ETFwas 0.9%
IVW Ishareswas 0.6%
IVE Ishares S&p 500 Value ETFwas 0.6%
PLTR Palantir Technologies Inclass Class Awas 0.5%
MRK Merck & Co. Incwas 0.5%
COST Costco Whsl Corp Newwas 0.4%
Albemarle Corpwas 0.4%

Share counts compared with the Q1 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +15.5% /yr; S&P 500 +20.1%
3 years: +26.2% /yr; S&P 500 +20.4%
5 years: +15.5% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$21.6B	769
Q1 2026	$20.8B	980
Q4 2025	$18.1B	693
Q3 2025	$18.1B	685
Q2 2025	$17.1B	675
Q1 2025	$15.4B	666
Q4 2024	$15.8B	671
Q3 2024	$14.8B	690
Q2 2024	$14.5B	706
Q1 2024	$14.3B	717
Q4 2023	$13.1B	668
Q3 2023	$12.0B	683

Questions about Calamos Advisors LLC's portfolio

What stocks does Calamos Advisors LLC own?

Calamos Advisors LLC's latest 13F, for Q2 2026 and filed Jul 31, 2026, lists 769 positions worth $21.6B. The largest are Nvidia Corporation Com (NVDA) at 6.5%, Apple Inc (AAPL) at 5.2%, Calamos ETF Tr (CBOX) at 5.0%, Microsoft Corp (MSFT) at 3.5% and Alphabet Inc (GOOGL) at 3.3%.

What did Calamos Advisors LLC buy last quarter?

In Q2 2026, Calamos Advisors LLC added Hewlett Packard Enterprise C 7.625 Mand (+13.9% shares), Advanced Micro Devices Inc (AMD) (+13.1% shares) and Caterpillar Inc Com (CAT) (+11.6% shares), compared with its Q1 2026 filing.

What did Calamos Advisors LLC sell last quarter?

In Q2 2026, Calamos Advisors LLC cut from its top 50 Spdr S&p 500 ETF Tr (SPY), cut from its top 50 Ishares Core S&p 500 ETF (IVV), cut from its top 50 Ishares (IVW), cut from its top 50 Ishares S&p 500 Value ETF (IVE), cut from its top 50 Palantir Technologies Inclass Class A (PLTR), Microchip Technology Inc. (MCHPP) (-22.2% shares), Alphabet Inc (GOOGL) (-21.1% shares) and Netflix Inc Total (NFLX) (-20.8% shares), compared with its Q1 2026 filing.

How has Calamos Advisors LLC's portfolio performed?

A portfolio copying Calamos Advisors LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +26.2% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +15.5% against +20.1%. Over 5 years: +15.5% a year against +11.6%.

When is Calamos Advisors LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Calamos Advisors LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does Calamos Advisors LLC manage?

Calamos Advisors LLC reported $43.9B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $21.6B.