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Calamos Advisors

Calamos Advisors Portfolio holdings

AUM $30.1B
1-Year Est. Return 30.03%
This Fund
S&P 500
This Quarter Est. Return
+3.53%
1 Year Est. Return
+30.03%
3 Year Est. Return
+88.6%
5 Year Est. Return
+115.14%
10 Year Est. Return
+349.12%
AUM
$26.6B
AUM Growth
-$451M
Cap. Flow
-$6.98B
Cap. Flow %
-26.2%
Top 10 Hldgs %
27.19%
Holding
1,021
New
103
Increased
183
Reduced
320
Closed
97

Top Buys

Rank Stock Value
1
SOMN
The Southern Company 2025 Series A Corp Units
SOMN
+$123M
2
KVUE icon
Kenvue
KVUE
+$44.1M
3
IQV icon
IQVIA
IQV
+$29.9M
4
IWM icon
iShares Russell 2000 ETF
IWM
+$20.8M
5
HOUS
Anywhere Real Estate
HOUS
+$20.6M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$99.2M
2
ORCL icon
Oracle
ORCL
+$51.7M
3
NVDA icon
NVIDIA
NVDA
+$48.6M
4
K
Kellanova
K
+$39M
5
MSFT icon
Microsoft
MSFT
+$34.6M

Sector Composition

Rank Sector Weight
1 Technology 21.94%
2 Financials 7.55%
3 Communication Services 7.22%
4 Consumer Discretionary 6.94%
5 Healthcare 6.12%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
BCARU
451
D. Boral ARC Acquisition I Corp Units
BCARU
$76.9M
$2.01M 0.01%
197,406
– –
EVAC.U
452
EQV Ventures Acquisition Corp II Units
EVAC.U
$1.99M 0.01%
196,912
– –
VHCPU
453
Vine Hill Capital Investment Corp II Units
VHCPU
$176M
$1.98M 0.01%
+197,241
New +$1.98M
ADACU
454
American Drive Acquisition Co Units
ADACU
$1.98M 0.01%
+197,792
New +$1.97M
LPCVU
455
Launchpad Cadenza Acquisition Corp I Unit
LPCVU
$1.97M 0.01%
+197,792
New +$1.98M
COST icon
456
CALL
Costco
COST
$420B
$1.94M 0.01%
2,100
+100
+5% +$90.6K
SONY icon
457
Sony
SONY
$138B
$1.93M 0.01%
75,300
+2,099
+3% +$58.9K
XPO icon
458
XPO
XPO
$23.7B
$1.9M 0.01%
13,973
+9,956
+248% +$1.36M
NTRA icon
459
Natera
NTRA
$46.4B
$1.88M 0.01%
8,222
+2,445
+42% +$510K
EXTR icon
460
Extreme Networks
EXTR
$3.15B
$1.86M 0.01%
111,894
+15,065
+16% +$277K
AMZN icon
461
CALL
Amazon
AMZN
$2.96T
$1.84M 0.01%
8,400
+400
+5% +$91.5K
MGNI icon
462
Magnite
MGNI
$3.55B
$1.84M 0.01%
113,457
+61,672
+119% +$1.02M
MIAX
463
Miami International Holdings
MIAX
$4.28B
$1.84M 0.01%
+41,364
New +$1.84M
HAVAU
464
Harvard Ave Acquisition Corporation Unit
HAVAU
$1.75M 0.01%
+175,000
New +$1.75M
MRVL icon
465
Marvell Technology
MRVL
$196B
$1.73M 0.01%
20,330
– –
FIX icon
466
Comfort Systems
FIX
$59.6B
$1.73M 0.01%
1,851
– –
RBC icon
467
RBC Bearings
RBC
$18B
$1.66M 0.01%
3,711
-898
-19% -$380K
SKWD icon
468
Skyward Specialty Insurance
SKWD
$2.58B
$1.66M 0.01%
+32,465
New +$1.56M
CWB icon
469
State Street SPDR Bloomberg Convertible Securities ETF
CWB
$5.69B
$1.65M 0.01%
18,445
+14,730
+397% +$1.34M
LCID icon
470
Lucid Motors
LCID
$2.77B
$1.59M 0.01%
+150,000
New +$2.4M
ARQT icon
471
Arcutis Biotherapeutics
ARQT
$3.18B
$1.57M 0.01%
+54,165
New +$1.39M
TSLA icon
472
CALL
Tesla
TSLA
$1.3T
$1.56M 0.01%
3,500
-52,400
-94% -$23.2M
AORT icon
473
Artivion
AORT
$1.32B
$1.55M 0.01%
34,047
-705
-2% -$31.4K
FESM icon
474
Fidelity Enhanced Small Cap Core ETF
FESM
$6.23B
$1.55M 0.01%
41,045
+1,060
+3% +$39.5K
HP icon
475
Helmerich & Payne
HP
$3.71B
$1.54M 0.01%
53,800
– –
17 18
19
20 21

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Calamos Advisors's Q4 2025 Portfolio in Review

As of Q4 2025, Calamos Advisors held 1,021 positions worth $26.6B, down 1.7% from $27.1B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Calamos Advisors withdrew a net $6.98B in Q4 2025, closing 97 positions and reducing 320 holdings. Its most notable exit was Kellanova, an estimated $39M position sold in full.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 22% a quarter earlier, followed by Financials and Communication Services.

Against the trend, Calamos Advisors opened a new position in The Southern Company 2025 Series A Corp Units worth $125M.

  • Calamos Advisors's largest Q4 2025 buy was The Southern Company 2025 Series A Corp Units: 2,485,706 shares worth $125M.
  • Calamos Advisors added most to IQVIA in Q4 2025, an estimated $29.9M increase.
  • Calamos Advisors's biggest Q4 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $99.2M.
  • Calamos Advisors fully exited Kellanova in Q4 2025, selling an estimated $39M.
  • Calamos Advisors's ten largest holdings make up 27% of its $26.6B portfolio in Q4 2025.
  • Calamos Advisors opened 103 new positions and closed 97 in Q4 2025.
  • Calamos Advisors's portfolio value fell 1.7% quarter-over-quarter to $26.6B.

Based on Calamos Advisors's 13F filing for Q4 2025, filed 29 Jan 2026.