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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 | |
|---|---|---|---|---|---|---|---|
151
Wen Acquisition Corp
WENN
$391M
| $1.01M | 0.03% |
100,000
| – | – |
2025 Q3
1 quarter
|
|
152
FIGX Capital Acquisition Corp
FIGX
$200M
| $1.01M | 0.03% |
100,000
| – | – |
2025 Q3
1 quarter
|
|
153
BTC Development Corp
BDCI
$353M
| $1M | 0.03% |
+100,000
| New | +$1.01M |
2025 Q4
0 quarters
|
|
154
McKinley Acquisition Corp
MKLY
$250M
| $997K | 0.03% |
+100,000
| New | +$995K |
2025 Q4
0 quarters
|
|
155
Iron Horse Acquisitions II Corp Units
IRHOU
$203M
| $994K | 0.03% |
+100,000
| New | +$996K |
2025 Q4
0 quarters
|
|
156
Apex Treasury Corp
APXT
$466M
| $989K | 0.03% |
+100,000
| New | +$989K |
2025 Q4
0 quarters
|
|
157
SPDR Gold Trust
GLD
$140B
| $971K | 0.03% |
+2,450
| New | +$936K |
2025 Q4
0 quarters
|
|
158
Meta Platforms (Facebook)
META
$1.8T
| $931K | 0.02% |
1,411
-6,589
| -82% | -$4.4M |
2025 Q2
2 quarters
|
|
159
Newmont
NEM
$124B
| $926K | 0.02% |
9,270
-6,730
| -42% | -$608K |
2025 Q3
1 quarter
|
|
|
RAAQ
160
DELISTED
Real Asset Acquisition Corp
RAAQ
| $914K | 0.02% |
89,610
-35
| -0% | -$361 |
2025 Q2
2 quarters
|
|
161
Ross Stores
ROST
$76.2B
| $901K | 0.02% |
5,000
-2,500
| -33% | -$417K |
2025 Q3
1 quarter
|
|
162
Packaging Corp of America
PKG
$21.1B
| $885K | 0.02% |
4,290
-71,450
| -94% | -$14.5M |
2025 Q3
1 quarter
|
|
163
Masco
MAS
$14.4B
| $763K | 0.02% |
12,020
+6,970
| +138% | +$452K |
2025 Q3
1 quarter
|
|
164
Huazhu Hotels Group
HTHT
$14.6B
| $761K | 0.02% |
16,167
-16,789
| -51% | -$725K |
2025 Q3
1 quarter
|
|
165
Indigo Acquisition Corp
INAC
| $756K | 0.02% |
75,000
| – | – |
2025 Q3
1 quarter
|
|
|
SPKL
166
DELISTED
Spark I Acquisition Corp
SPKL
| $755K | 0.02% |
66,832
| – | – |
2024 Q1
7 quarters
|
|
167
JB Hunt Transport Services
JBHT
$21B
| $754K | 0.02% |
+3,880
| New | +$666K |
2025 Q4
0 quarters
|
|
168
PUT
Hertz
HTZ
$659M
| $752K | 0.02% |
1,194,300
| – | – |
2024 Q1
7 quarters
|
|
169
Strategy Inc 8.00% Series A Perpetual Strike Preferred Stock
STRK
$521M
| $751K | 0.02% |
9,500
| – | – |
2025 Q1
3 quarters
|
|
170
Sabre
SABR
$658M
| $749K | 0.02% |
550,900
| – | – |
2025 Q2
2 quarters
|
|
|
171
PUT
Sabre
SABR
$658M
| $706K | 0.02% |
688,600
| – | – |
2024 Q2
6 quarters
|
|
172
Centrus Energy
LEU
$2.25B
| $654K | 0.02% |
+2,695
| New | +$814K |
2025 Q4
0 quarters
|
|
173
Cameco
CCJ
$35.2B
| $653K | 0.02% |
7,138
-40,027
| -85% | -$3.6M |
2025 Q2
2 quarters
|
|
174
PUT
Chemours
CC
$1.9B
| $619K | 0.02% |
46,900
| – | – |
2024 Q2
6 quarters
|
|
175
American Exceptionalism Acquisition Corp
AEXA
$528M
| $570K | 0.02% |
50,000
-350,000
| -88% | -$3.93M |
2025 Q3
1 quarter
|
|
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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.