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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
GPAT
76
GP-Act III Acquisition Corp
GPAT
$177M
$2.67M 0.07%
250,000
-100,000
-29% -$1.07M
AAM
77
DELISTED
AA Mission Acquisition Corp
AAM
$2.67M 0.07%
250,000
– –
SVCC
78
Stellar V Capital Corp
SVCC
$231M
$2.59M 0.07%
250,000
– –
BLUW
79
Blue Water Acquisition Corp III
BLUW
$335M
$2.58M 0.07%
250,000
– –
FAC
80
Factorial Energy Inc
FAC
$563M
$2.57M 0.07%
250,000
– –
NPAC
81
New Providence Acquisition Corp III
NPAC
$403M
$2.56M 0.07%
250,000
– –
PFE icon
82
Pfizer
PFE
$164B
$2.56M 0.07%
+102,623
New +$2.59M
CCAQ
83
Collective Acquisition Corp
CCAQ
$213M
$2.55M 0.07%
250,000
– –
FTW
84
Presidio Production Co
FTW
$340M
$2.54M 0.07%
242,175
– –
TVAI
85
Thayer Ventures Acquisition Corporation II
TVAI
$282M
$2.53M 0.07%
250,000
– –
TLNC
86
Talon Capital Corp
TLNC
$349M
$2.52M 0.07%
+250,000
New +$2.52M
OBA
87
Oxley Bridge Acquisition Ltd
OBA
$327M
$2.52M 0.07%
250,000
– –
PACH
88
Pioneer Acquisition I Corp
PACH
$293M
$2.52M 0.07%
250,000
– –
SOCA
89
Solarius Capital Acquisition Corp
SOCA
$242M
$2.51M 0.07%
250,000
– –
GEV icon
90
GE Vernova
GEV
$251B
$2.51M 0.07%
+3,834
New +$2.34M
MBVI
91
M3-Brigade Acquisition VI Corp
MBVI
$441M
$2.5M 0.07%
+250,000
New +$2.51M
HVMC
92
Highview Merger Corp
HVMC
$302M
$2.5M 0.07%
+250,000
New +$2.5M
KOYN
93
CSLM Digital Asset Acquisition Corp III
KOYN
$323M
$2.49M 0.07%
250,000
– –
BEAG
94
Bold Eagle Acquisition Corp
BEAG
$337M
$2.32M 0.06%
219,217
-280,783
-56% -$2.99M
TJX icon
95
TJX Companies
TJX
$145B
$2.3M 0.06%
+15,000
New +$2.22M
RNGT
96
Range Capital Acquisition Corp II
RNGT
$318M
$2.25M 0.06%
+225,000
New +$2.25M
ASML icon
97
ASML
ASML
$632B
$2.14M 0.06%
+2,000
New +$2.09M
WAB icon
98
Wabtec
WAB
$47.4B
$2.13M 0.06%
+10,000
New +$2.05M
CCIX
99
DELISTED
Churchill Capital Corp IX
CCIX
$2.12M 0.06%
199,274
-50,726
-20% -$540K
ATII
100
Archimedes Tech SPAC Partners II Co
ATII
$315M
$2.07M 0.06%
200,000
– –
2 3
4
5 6

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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.