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UOC

UBS O'Connor Portfolio holdings

AUM $3.76B
1-Year Est. Return 62.41%
This Fund
S&P 500
This Quarter Est. Return
+16.38%
1 Year Est. Return
+62.41%
3 Year Est. Return
+179.84%
5 Year Est. Return
+371.69%
10 Year Est. Return
+1,534.25%
AUM
$3.76B
AUM Growth
+$415M
Cap. Flow
+$232M
Cap. Flow %
6.17%
Top 10 Hldgs %
70.32%
Holding
347
New
79
Increased
17
Reduced
40
Closed
111

Top Buys

Rank Stock Value
1
DAY
Dayforce
DAY
+$282M
2
CMA
Comerica
CMA
+$267M
3
RNAM
Avidity Biosciences
RNAM
+$240M
4
HOLX
Hologic
HOLX
+$190M
5
EXAS
Exact Sciences
EXAS
+$143M

Top Sells

Rank Stock Value
1
VRNA
Verona Pharma
VRNA
+$457M
2
K
Kellanova
K
+$290M
3
COOP
Mr. Cooper
COOP
+$169M
4
IPG
Interpublic Group of Companies
IPG
+$132M
5
INFA
Informatica
INFA
+$113M

Sector Composition

Rank Sector Weight
1 Technology 25.61%
2 Healthcare 19.41%
3 Industrials 18.06%
4 Financials 17.96%
5 Communication Services 7.48%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ACMR icon
126
ACM Research
ACMR
$5.14B
$1.42M 0.04%
35,958
-43,438
-55% -$1.62M
TPR icon
127
Tapestry
TPR
$24.5B
$1.28M 0.03%
+10,000
New +$1.14M
CHEC
128
Chenghe Acquisition III Co
CHEC
$177M
$1.25M 0.03%
+125,000
New +$1.25M
LATA
129
Galata Acquisition Corp II
LATA
$234M
$1.25M 0.03%
+125,000
New +$1.25M
GENVR
130
Gen Digital Inc Contingent Value Rights
GENVR
$1.23M 0.03%
274,523
-23,219
-8% -$119K
DLTR icon
131
Dollar Tree
DLTR
$24.6B
$1.23M 0.03%
+10,000
New +$1.07M
SPEG
132
Silver Pegasus Acquisition Corp
SPEG
$159M
$1.21M 0.03%
120,000
– –
CSIQ icon
133
Canadian Solar
CSIQ
$915M
$1.14M 0.03%
+47,962
New +$1.05M
LITE icon
134
Lumentum
LITE
$79.2B
$1.14M 0.03%
+3,083
New +$792K
HYAC
135
DELISTED
Haymaker Acquisition Corp 4
HYAC
$1.14M 0.03%
100,248
– –
SN icon
136
SharkNinja
SN
$24.6B
$1.12M 0.03%
10,020
+1,260
+14% +$124K
WMT icon
137
Walmart Inc
WMT
$853B
$1.11M 0.03%
+10,000
New +$1.07M
LEGT
138
DELISTED
Legato Merger Corp III
LEGT
$1.09M 0.03%
100,000
-93,740
-48% -$1.02M
ALDF
139
Aldel Financial II Inc
ALDF
$1.05M 0.03%
100,000
– –
DRDB
140
Roman DBDR Acquisition Corp II
DRDB
$327M
$1.04M 0.03%
100,000
– –
JACS
141
Jackson Acquisition Co II
JACS
$317M
$1.04M 0.03%
100,000
– –
RAC
142
Rithm Acquisition Corp
RAC
$310M
$1.04M 0.03%
100,000
– –
COPL
143
Copley Acquisition Corp
COPL
$1.02M 0.03%
100,000
– –
CAEP
144
DELISTED
Cantor Equity Partners III
CAEP
$1.02M 0.03%
100,000
-49,700
-33% -$516K
ONCH
145
1RT Acquisition Corp
ONCH
$223M
$1.02M 0.03%
100,000
– –
PELI
146
DELISTED
Pelican Acquisition Corp
PELI
$1.02M 0.03%
100,000
– –
SZZL
147
Sizzle Acquisition Corp II
SZZL
$327M
$1.02M 0.03%
100,000
– –
TACO
148
Berto Acquisition Corp
TACO
$394M
$1.01M 0.03%
100,000
– –
IPCX
149
DELISTED
Inflection Point Acquisition Corp III
IPCX
$1.01M 0.03%
100,000
– –
OYSE
150
Oyster Enterprises II Acquisition Corp
OYSE
$1.01M 0.03%
100,000
– –
4 5
6
7 8

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ACI
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RC
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CGL
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JCM
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MPM
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UBS O'Connor's Q4 2025 Portfolio in Review

As of Q4 2025, UBS O'Connor held 347 positions worth $3.76B, up 12% from $3.34B the previous quarter. Its ten largest holdings account for 70% of the portfolio.

UBS O'Connor deployed $232M of net new capital in Q4 2025, opening 79 new positions and adding to 17 existing holdings. Its largest new stake was Dayforce: 4,096,708 shares worth $283M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 22% a quarter earlier, followed by Healthcare and Industrials.

On the sell side, the largest reduction was NVIDIA, an estimated $17M trimmed.

  • UBS O'Connor's largest Q4 2025 buy was Dayforce: 4,096,708 shares worth $283M.
  • UBS O'Connor added most to Air Lease Corp in Q4 2025, an estimated $142M increase.
  • UBS O'Connor's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $17M.
  • UBS O'Connor fully exited Verona Pharma in Q4 2025, selling an estimated $457M.
  • UBS O'Connor's ten largest holdings make up 70% of its $3.76B portfolio in Q4 2025.
  • UBS O'Connor opened 79 new positions and closed 111 in Q4 2025.
  • UBS O'Connor's portfolio value rose 12% quarter-over-quarter to $3.76B.

Based on UBS O'Connor's 13F filing for Q4 2025, filed 13 Feb 2026.