13F filer

Calamos Advisors

As of Jun 30, 2026 Filed Jul 31, 2026 CIK 1316507 SEC filings ↗

13F Value

$30.07B

Positions

980

Top Position

NVDA4.7%

Top 5

17.5%

Latest filing changes

vs Mar 31, 2026

1 SPY · PUT State Str SPDR S&P 500 ETF T — Tr Unit +38.5%+$225.4M

2 EFA · CALL iShares MSCI EAFE ETF +147.1%+$100.0M

3 INTC Intel +30.1%+$41.0M

4 AAPL · CALL Apple >999%+$37.4M

5 AMD Advanced Micro Devices +13.1%+$36.5M

Holdings980

#
1	NVDA NVIDIA	4.7%	$1.41B	-13.8%	7.06M	5.1%	Common Stock
2	AAPL Apple	3.8%	$1.14B	-17.9%	3.93M	4.3%	Common Stock
3	CALAMOS ETF TR — TAX AWA COLL ETF Calamos ETF Tr — Tax Awa Coll ETF	3.6%	$1.08B	NEW	10.69M	—	ETF
4	WDC - Note 3.000% 11/1 Western Digital	2.7%	$825.1M	-12.4%	48.73M	1.4%	Bond
5	SPY · PUT State Str SPDR S&P 500 ETF T — Tr Unit	2.7%	$810.8M	+38.5%	1.25M	2.2%	Put
6	MSFT Microsoft	2.5%	$762.8M	-13.9%	2.05M	3.1%	Common Stock
7	GOOGL Alphabet Class A Filing details 02079K305 Jun 30, 2026 2,019,467 reported quantity $721,696,922 reported value	2.4%	$721.7M	-21.1%	2.02M	2.6%	Common Stock
8	AMZN Amazon	2.4%	$713.0M	-12.2%	2.99M	2.5%	Common Stock
9	SPY · CALL State Str SPDR S&P 500 ETF T — Tr Unit	1.8%	$554.9M	+5.5%	853.3K	2.0%	Call
10	AVGO Broadcom	1.7%	$519.3M	-16.8%	1.37M	1.8%	Common Stock
11	META Meta Platforms	1.2%	$370.4M	-10.0%	657.6K	1.5%	Common Stock
12	MU Micron Technology	1.2%	$361.8M	-2.7%	313.5K	0.4%	Common Stock
13	LLY Eli Lilly	1.1%	$339.4M	-8.3%	283.0K	1.0%	Common Stock
14	GOOG Alphabet Class C	1.1%	$320.5M	-9.4%	907.2K	1.0%	Common Stock
15	AMD Advanced Micro Devices	1.0%	$314.1M	+13.1%	540.8K	0.3%	Common Stock
16	TSLA Tesla	1.0%	$314.0M	-11.3%	746.4K	1.1%	Common Stock
17	GOOGM Alphabet Inc. - Depositary Shares representing a 1/20th Interest in a Share of Series A Mandatory Convertible Preferred Stock	0.8%	$237.3M	NEW	4.66M	—	Preferred
18	GOOGN Alphabet Inc. - Depositary Shares representing a 1/20th Interest in a Share of Series B Mandatory Convertible Preferred Stock	0.8%	$232.2M	NEW	4.62M	—	Preferred
19	JPM JPMorgan Chase	0.8%	$231.9M	-12.0%	708.4K	0.8%	Common Stock
20	V Visa	0.8%	$226.9M	-13.2%	661.5K	0.8%	Common Stock

Change compares with the prior filing. Prior % is the share of the portfolio in that filing. Trend shows the quantity held in each of the last four filings: green rose, red fell, grey unchanged.

Exited in Latest Filing380

#	Holding	Prior %	Prior Value	Change	Prior Quantity	Trend (4Q)	Type

Compared with the immediately prior published filing (Mar 31, 2026). Prior values are shown for context and are not included in current totals.