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UBS O'Connor Portfolio holdings
AUM
$3.76B
Turnover
54.76%
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
(+12%)
Cap. Flow
+$232M
Cap. Flow % of AUM
Cap. Flow %
6.17%
Top 10 Holdings %
Top 10 Hldgs %
70.32%
Holding
347
New
79
Increased
17
Reduced
40
Closed
111
Avg Time Held
Equity + Options
0.8
years
Top 10 Avg Time Held
Equity + Options
0.2
years
Top 20 Avg Time Held
Equity + Options
0.2
years
Avg Time Held Equity only
0.6
years
Top 10 Avg Time Held Equity only
0.2
years
Top 20 Avg Time Held Equity only
0.2
years
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Dayforce
DAY
|
+$282M |
| 2 |
Comerica
CMA
|
+$267M |
| 3 |
RNAM
Avidity Biosciences
RNAM
|
+$240M |
| 4 |
Hologic
HOLX
|
+$190M |
| 5 |
Exact Sciences
EXAS
|
+$143M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
VRNA
Verona Pharma
VRNA
|
+$457M |
| 2 |
Kellanova
K
|
+$290M |
| 3 |
Mr. Cooper
COOP
|
+$169M |
| 4 |
Interpublic Group of Companies
IPG
|
+$132M |
| 5 |
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 | Held Since | |
|---|---|---|---|---|---|---|---|
101
Gesher Acquisition Corp. II Class A Ordinary Shares
GSHR
$217M
| $2.05M | 0.05% |
200,000
| – | – |
2025 Q3
1 quarter
|
|
102
Cohen Circle Acquisition Corp II
CCII
$357M
| $2.05M | 0.05% |
200,000
| – | – |
2025 Q3
1 quarter
|
|
103
Blue Acquisition Corp
BACC
$291M
| $2.04M | 0.05% |
200,000
| – | – |
2025 Q3
1 quarter
|
|
104
Cal Redwood Acquisition Corp
CRAQ
$326M
| $2.04M | 0.05% |
200,000
| – | – |
2025 Q2
2 quarters
|
|
|
BCAR
105
DELISTED
D. Boral ARC Acquisition I Corp
BCAR
| $2.01M | 0.05% |
200,000
| – | – |
2025 Q3
1 quarter
|
|
106
Check Point Software Technologies
CHKP
$14.3B
| $1.92M | 0.05% |
+10,370
| New | +$2M |
2025 Q4
0 quarters
|
|
107
Burlington
BURL
$16.5B
| $1.88M | 0.05% |
+6,500
| New | +$1.76M |
2025 Q4
0 quarters
|
|
108
Cantor Equity Partners IV
CEPF
$587M
| $1.79M | 0.05% |
174,570
-125,430
| -42% | -$1.3M |
2025 Q3
1 quarter
|
|
109
Axiom Intelligence Acquisition Corp 1
AXIN
$282M
| $1.76M | 0.05% |
175,000
| – | – |
2025 Q3
1 quarter
|
|
110
OTG Acquisition Corp I
OTGA
$303M
| $1.75M | 0.05% |
+175,000
| New | +$1.75M |
2025 Q4
0 quarters
|
|
|
AACB
111
DELISTED
Artius II Acquisition Inc
AACB
| $1.65M | 0.04% |
160,000
| – | – |
2025 Q2
2 quarters
|
|
112
Centurion Acquisition Corp
ALF
$392M
| $1.6M | 0.04% |
150,000
| – | – |
2025 Q3
1 quarter
|
|
113
Andretti Acquisition Corp II
POLE
$147M
| $1.58M | 0.04% |
150,000
| – | – |
2024 Q4
4 quarters
|
|
|
MLAC
114
DELISTED
Mountain Lake Acquisition Corp
MLAC
| $1.56M | 0.04% |
149,912
-100,088
| -40% | -$1.04M |
2025 Q2
2 quarters
|
|
115
Evernorth Holdings Inc. Class A Ordinary Shares
XRPN
$335M
| $1.54M | 0.04% |
150,000
| – | – |
2025 Q2
2 quarters
|
|
116
Cummins
CMI
$72.5B
| $1.53M | 0.04% |
+3,000
| New | +$1.4M |
2025 Q4
0 quarters
|
|
117
Soulpower Acquisition Corp
SOUL
$357M
| $1.52M | 0.04% |
150,000
| – | – |
2025 Q2
2 quarters
|
|
118
FutureCrest Acquisition Corp
FCRS
$367M
| $1.52M | 0.04% |
+150,000
| New | +$1.52M |
2025 Q4
0 quarters
|
|
119
Pyrophyte Acquisition Corp II
PAII
$281M
| $1.51M | 0.04% |
150,000
| – | – |
2025 Q3
1 quarter
|
|
120
EQV Ventures Acquisition Corp II
EVAC
$603M
| $1.5M | 0.04% |
150,000
| – | – |
2025 Q3
1 quarter
|
|
121
Tower Semiconductor
TSEM
$22.6B
| $1.5M | 0.04% |
12,739
-26,305
| -67% | -$2.53M |
2025 Q3
1 quarter
|
|
122
AA Mission Acquisition Corp II
YCY
$152M
| $1.49M | 0.04% |
+150,000
| New | +$1.49M |
2025 Q4
0 quarters
|
|
|
VACI
123
DELISTED
Viking Acquisition Corp I
VACI
| $1.48M | 0.04% |
+150,000
| New | +$1.49M |
2025 Q4
0 quarters
|
|
124
DELISTED
Warner Bros
WBD
| $1.44M | 0.04% |
50,000
| – | – |
2025 Q3
1 quarter
|
|
125
DELISTED
Alchemy Investments Acquisition Corp 1
ALCY
| $1.42M | 0.04% |
100,248
| – | – |
2024 Q1
7 quarters
|
|
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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.