13F Insight
DOSSIER · 13F-HR · Q1 2026

Calamos Advisors LLC

Calamos's hedge fund based in London, UK — $28.2B in tracked AUM across 1,269 positions as of Q1 2026.

C
Calamos·London, UK·Hedge Fund
CIK 0001316507 · last filed Mar 31, 2026
Total AUM
$28.2B
▼ 10.6%
vs prior
Holdings
1,269
—
positions
Whale Score
63
63
tracked
Activity
—
no data
changes this Q
Top sector
Financials
7% weight
concentration
AI Analysis · Q1 2026 · Q1 2026

Calamos Advisors LLC filed Q1 2026 13F-HR with $28.2B in disclosed U.S. equity holdings The portfolio is led by Technology exposure, with top positions including SPY (5.8%), NVDA (5.1%), AAPL (4.3%). Quarter-over-quarter activity shows 14 new entries and 14 exits, with a net additive posture across 64 changed positions. Notable reduction: WDC 3 11/15/28 (27.2% reduction) (WESTERN DIGITAL CORP).

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
SPY
STATE STR SPDR S&P 500 ETF T
$1.6B2.4M5.8%
02
NVDA
NVIDIA CORPORATION
$1.4B8.2M5.1%
03
AAPL
APPLE INC
$1.2B4.8M4.3%
04
MSFT
MICROSOFT CORP
$906M2.4M3.2%
05
GOOGL
ALPHABET INC
$738M2.6M2.6%
06
AMZN
AMAZON COM INC
$727M3.5M2.6%
07
AVGO
BROADCOM INC
$513M1.7M1.8%
08
QQQ
INVESCO QQQ TR
$470M766K1.7%
09
META
META PLATFORMS INC
$427M745K1.5%
10
WDC 3 11/15/28
WESTERN DIGITAL CORP
$399M55.6M1.4%

Filing history

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