13F Insight
DOSSIER · 13F-HR · Q2 2026

Calamos Advisors LLC

$30.1B in tracked AUM across 1,059 positions as of Q2 2026.

CA
CIK 0001316507 · last filed Jun 30, 2026
Total AUM
$30.1B
as of Q2 2026
Holdings
1,059
—
positions
Whale Score
63
63
tracked
Activity
—
no data
changes this Q
AI Analysis · Q2 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).

Calamos Advisors LLC reports $28.2B in U.S. equity holdings for Q1 2026, anchored by a Technology-centric allocation. The top five positions by value span SPY + NVDA + AAPL + MSFT + GOOGL, collectively representing a meaningful concentration within the disclosed book.

Core Holdings

  • SPY (STATE STR SPDR S&P 500 ETF T) — $1.6B (5.8%)
  • NVDA (NVIDIA CORPORATION) — $1.4B (5.1%)
  • AAPL (APPLE INC) — $1.2B (4.3%)
  • MSFT (MICROSOFT CORP) — $0.9B (3.2%)
  • GOOGL (ALPHABET INC) — $0.7B (2.6%)
Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight
01
NVDA
NVIDIA CORPORATION
$1.4B7.1M4.7%02
SPY
STATE STR SPDR S&P 500 ETF T
$1.4B2.1M4.6%03
AAPL
APPLE INC
$1.2B4.1M3.9%04
CBOX
CALAMOS ETF TR
$1.1B10.7M3.6%05
WDC 3 11/15/28
WESTERN DIGITAL CORP
$825M48.7M2.7%06
MSFT
MICROSOFT CORP
$786M2.1M2.6%07
AMZN
AMAZON COM INC
$734M3.1M2.4%08
GOOGL
ALPHABET INC
$723M2.0M2.4%09
AVGO
BROADCOM INC
$524M1.4M1.7%10
META
META PLATFORMS INC
$379M672K1.3%

Filing history

2026Q2Jun 30
$30.1B▲ 6.5%
1,059 positionsView →2026Q1Mar 31
$28.2B▲ 6.0%
1,269 positionsView →2025Q4Dec 31
$26.6B▼ 1.7%
997 positionsView →2025Q3Sep 30
$27.1B▲ 6.6%
1,003 positionsView →2025Q2Jun 30
$25.4B▲ 10.6%
991 positionsLocked2025Q1Mar 31
$23.0B▼ 3.9%
987 positionsLocked2024Q4Dec 31
$23.9B▲ 3.4%
1,059 positionsLocked2024Q3Sep 30
$23.1B▲ 2.7%
1,072 positionsLocked2024Q2Jun 30
$22.5B▲ 6.7%
1,087 positionsLocked2024Q1Mar 31
$21.1B▲ 2.4%
1,097 positionsLocked2023Q4Dec 31
$20.6B▲ 7.1%
1,062 positionsLocked2023Q3Sep 30
$19.2B▼ 4.8%
1,066 positionsLocked
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