Calamos Advisors LLC

Q4 2025 13F-HR Holdings

Location
Naperville, IL
Holdings as of
12/31/2025
Date filed
1/29/2026
Form type
13F-HR
Num holdings
924
Total value ($000)
$26,625,089
Net value change ($000)
-451,035 (-1.7%)
New positions
90
Sold out positions
78
Turnover %
3.5%
Sector allocation + QoQ delta (equities-only)

Holdings aggregated across other managers listed in the original SEC filing. View detailed breakdown

Prev filing: 10/20/2025 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q3 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
GOOGL 170,434 31.3%
SO 125,180 NEW
LLY 83,607 39.9%
GOOGL 55,779 23.8%
MU 47,612 71.9%
KVUE 46,575 NEW
AAPL 43,078 4.2%
ALB 34,806 90.1%
MRK 32,946 76.9%
IQV 32,799 336.8%
Top Reduces (Value $000, Stocks/ETFs)
MSFT -108,796 -9.6%
ORCL -98,158 -54.0%
SPY -95,711 -51.9%
NFLX -61,740 -29.1%
META -60,608 -12.2%
NVDA -49,272 -3.5%
KEL -39,002 -100.0%
NOW -30,557 -29.8%
MRSH -29,533 -54.7%
GTLS -28,198 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 2,290,946 (8.6% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type