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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 | |
|---|---|---|---|---|---|---|---|
126
ACM Research
ACMR
$3.91B
| $1.42M | 0.04% |
35,958
-43,438
| -55% | -$1.62M |
2025 Q2
2 quarters
|
|
127
Tapestry
TPR
$23.4B
| $1.28M | 0.03% |
+10,000
| New | +$1.14M |
2025 Q4
0 quarters
|
|
128
Chenghe Acquisition III Co
CHEC
$178M
| $1.25M | 0.03% |
+125,000
| New | +$1.25M |
2025 Q4
0 quarters
|
|
129
Galata Acquisition Corp II
LATA
$235M
| $1.24M | 0.03% |
+125,000
| New | +$1.25M |
2025 Q4
0 quarters
|
|
130
Gen Digital Inc Contingent Value Rights
GENVR
| $1.23M | 0.03% |
274,523
-23,219
| -8% | -$119K |
2025 Q2
2 quarters
|
|
131
Dollar Tree
DLTR
$23.1B
| $1.23M | 0.03% |
+10,000
| New | +$1.07M |
2025 Q4
0 quarters
|
|
132
Silver Pegasus Acquisition Corp
SPEG
$160M
| $1.21M | 0.03% |
120,000
| – | – |
2025 Q3
1 quarter
|
|
133
Canadian Solar
CSIQ
$650M
| $1.14M | 0.03% |
+47,962
| New | +$1.05M |
2025 Q4
0 quarters
|
|
134
Lumentum
LITE
$75.6B
| $1.14M | 0.03% |
+3,083
| New | +$792K |
2025 Q4
0 quarters
|
|
135
DELISTED
Haymaker Acquisition Corp 4
HYAC
| $1.14M | 0.03% |
100,248
| – | – |
2023 Q3
9 quarters
|
|
136
SharkNinja
SN
$26.6B
| $1.12M | 0.03% |
10,020
+1,260
| +14% | +$124K |
2024 Q4
4 quarters
|
|
137
Walmart Inc
WMT
$942B
| $1.11M | 0.03% |
+10,000
| New | +$1.07M |
2025 Q4
0 quarters
|
|
|
LEGT
138
DELISTED
Legato Merger Corp III
LEGT
| $1.09M | 0.03% |
100,000
-93,740
| -48% | -$1.02M |
2024 Q4
4 quarters
|
|
139
Aldel Financial II Inc
ALDF
| $1.05M | 0.03% |
100,000
| – | – |
2025 Q2
2 quarters
|
|
140
Roman DBDR Acquisition Corp II
DRDB
$330M
| $1.04M | 0.03% |
100,000
| – | – |
2025 Q2
2 quarters
|
|
141
Jackson Acquisition Co II
JACS
$320M
| $1.04M | 0.03% |
100,000
| – | – |
2025 Q2
2 quarters
|
|
142
Rithm Acquisition Corp
RAC
$310M
| $1.04M | 0.03% |
100,000
| – | – |
2025 Q3
1 quarter
|
|
143
Copley Acquisition Corp
COPL
| $1.02M | 0.03% |
100,000
| – | – |
2025 Q2
2 quarters
|
|
|
CAEP
144
DELISTED
Cantor Equity Partners III
CAEP
| $1.02M | 0.03% |
100,000
-49,700
| -33% | -$516K |
2025 Q2
2 quarters
|
|
145
1RT Acquisition Corp
ONCH
$223M
| $1.02M | 0.03% |
100,000
| – | – |
2025 Q3
1 quarter
|
|
|
PELI
146
DELISTED
Pelican Acquisition Corp
PELI
| $1.02M | 0.03% |
100,000
| – | – |
2025 Q2
2 quarters
|
|
147
Sizzle Acquisition Corp II
SZZL
$328M
| $1.02M | 0.03% |
100,000
| – | – |
2025 Q2
2 quarters
|
|
148
Berto Acquisition Corp
TACO
$393M
| $1.01M | 0.03% |
100,000
| – | – |
2025 Q3
1 quarter
|
|
|
IPCX
149
DELISTED
Inflection Point Acquisition Corp III
IPCX
| $1.01M | 0.03% |
100,000
| – | – |
2025 Q3
1 quarter
|
|
150
Oyster Enterprises II Acquisition Corp
OYSE
$353M
| $1.01M | 0.03% |
100,000
| – | – |
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.