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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
SEZL
801
Sezzle
SEZL
$3.97B
– –
-12,959
Closed -$1.03M
SHOP icon
802
CALL
Shopify
SHOP
$195B
– –
-286,200
Closed -$33M
SMMT icon
803
Summit Therapeutics
SMMT
$11.1B
– –
-18,628
Closed -$385K
SMR icon
804
NuScale Power
SMR
$4.03B
– –
-113,667
Closed -$4.09M
SRAD icon
805
Sportradar
SRAD
$3.85B
– –
-43,641
Closed -$1.17M
STM icon
806
STMicroelectronics
STM
$50B
– –
-114,000
Closed -$3.22M
SWIM icon
807
Latham Group
SWIM
$880M
– –
-87,036
Closed -$662K
TBLD
808
Thornburg Income Builder Opportunities Trust
TBLD
$716M
– –
-13,728
Closed -$273K
TDG icon
809
TransDigm Group
TDG
$67.7B
– –
-10,046
Closed -$13.2M
TDUP icon
810
ThredUp
TDUP
$422M
– –
-106,757
Closed -$1.01M
TECK icon
811
Teck Resources
TECK
$32.6B
– –
-122,500
Closed -$5.38M
TME icon
812
CALL
Tencent Music
TME
$15.6B
– –
-167,000
Closed -$3.25M
TME icon
813
Tencent Music
TME
$15.6B
– –
-191,951
Closed -$4.48M
TPB icon
814
Turning Point Brands
TPB
$1.74B
– –
-8,745
Closed -$865K
TSM icon
815
CALL
TSMC
TSM
$2.18T
– –
-20,200
Closed -$4.58M
UBER icon
816
CALL
Uber
UBER
$153B
– –
-75,000
Closed -$7M
VALE icon
817
CALL
Vale
VALE
$62.6B
– –
-190,800
Closed -$1.85M
CEROW
818
DELISTED
CERo Therapeutics Warrants
CEROW
– –
-12,500
Closed -$166
CRMLW icon
819
Critical Metals Corp Warrants
CRMLW
$20.5M
– –
-500,000
Closed -$1.05M
ALAB icon
820
Astera Labs
ALAB
$58B
– –
-9,236
Closed -$1.81M
LENZ
821
LENZ Therapeutics
LENZ
$168M
– –
-77,266
Closed -$3.6M
CNR
822
Core Natural Resources Inc
CNR
$4.45B
– –
-95,744
Closed -$7.99M
HDRN
823
Hadron Energy
HDRN
$123M
– –
-925,000
Closed -$9.75M
TEM
824
Tempus AI
TEM
$9.39B
– –
-19,859
Closed -$1.6M
NBIS
825
Nebius Group N.V.
NBIS
$47.7B
– –
-38,467
Closed -$4.32M
30 31 32
33
34

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State of Tennessee, Department of Treasury
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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.