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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
CBOA
601
Calamos Bitcoin Structured Alt Protection ETF - April
CBOA
$4.86M
$451K ﹤0.01%
+17,512
New +$461K
CBOY
602
Calamos Bitcoin Structured Alt Protection ETF - July
CBOY
$4.91M
$451K ﹤0.01%
+18,345
New +$461K
STEW
603
SRH Total Return Fund
STEW
$1.81B
$449K ﹤0.01%
24,196
+5,886
+32% +$106K
GGN
604
GAMCO Global Gold, Natural Resources & Income Trust
GGN
$819M
$441K ﹤0.01%
85,404
+20,772
+32% +$104K
ALLT icon
605
Allot
ALLT
$383M
$440K ﹤0.01%
44,719
+14,196
+47% +$136K
CBTO
606
Calamos Bitcoin 80 Series Structured Alt Protection ETF - October
CBTO
$27.7M
$437K ﹤0.01%
+19,102
New +$435K
LRN icon
607
Stride
LRN
$3.43B
$432K ﹤0.01%
6,650
-20,705
-76% -$1.88M
CSCO icon
608
CALL
Cisco
CSCO
$479B
$431K ﹤0.01%
6,300
-1,700
-21% -$126K
CBOJ
609
Calamos Bitcoin Structured Alt Protection ETF - January
CBOJ
$19M
$429K ﹤0.01%
+17,854
New +$453K
CBXA
610
Calamos Bitcoin 90 Series Structured Alt Protection ETF - April
CBXA
$4.31M
$424K ﹤0.01%
+15,760
New +$447K
TQQQ icon
611
PUT
ProShares UltraPro QQQ
TQQQ
$37.9B
$424K ﹤0.01%
+4,100
New +$220K
CBXY
612
Calamos Bitcoin 90 Series Structured Alt Protection ETF - July
CBXY
$6.69M
$419K ﹤0.01%
+18,082
New +$443K
ENGNW icon
613
enGene Therapeutics Warrants
ENGNW
$418K ﹤0.01%
148,290
-1,710
-1% -$3.9K
U icon
614
Unity
U
$18.9B
$411K ﹤0.01%
+9,300
New +$379K
CBXO
615
Calamos Bitcoin 90 Series Structured Alt Protection ETF - October
CBXO
$11.1M
$408K ﹤0.01%
+18,969
New +$449K
MSD
616
Morgan Stanley Emerging Markets Debt Fund
MSD
$148M
$408K ﹤0.01%
+55,177
New +$406K
ALNY icon
617
Alnylam Pharmaceuticals
ALNY
$29.3B
$398K ﹤0.01%
1,000
-200
-17% -$88.5K
CBTA
618
Calamos Bitcoin 80 Series Structured Alt Protection ETF - April
CBTA
$6.35M
$397K ﹤0.01%
+14,329
New +$431K
CBTY
619
Calamos Bitcoin 80 Series Structured Alt Protection ETF - July
CBTY
$5.98M
$395K ﹤0.01%
+17,992
New +$431K
BIT icon
620
BlackRock Multi-Sector Income Trust
BIT
$702M
$393K ﹤0.01%
+30,095
New +$397K
DIAX
621
DELISTED
Nuveen Dow 30SM Dynamic Overwrite Fund
DIAX
$392K ﹤0.01%
25,709
+6,255
+32% +$93K
VOYG
622
Voyager Technologies
VOYG
$2.54B
$392K ﹤0.01%
+15,000
New +$407K
OSG
623
Octave Specialty Group
OSG
$222M
$382K ﹤0.01%
+49,089
New +$420K
HDRNW
624
Hadron Energy Warrant
HDRNW
$2.8M
$379K ﹤0.01%
925,000
– –
MXF
625
Mexico Fund
MXF
$315M
$378K ﹤0.01%
18,764
+4,563
+32% +$88.5K
23 24
25
26 27

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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.