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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
WENN
151
Wen Acquisition Corp
WENN
$1.01M 0.03%
100,000
– –
FIGX
152
FIGX Capital Acquisition Corp
FIGX
$1.01M 0.03%
100,000
– –
BDCI
153
BTC Development Corp
BDCI
$352M
$1M 0.03%
+100,000
New +$1.01M
MKLY
154
McKinley Acquisition Corp
MKLY
$249M
$997K 0.03%
+100,000
New +$995K
IRHOU
155
Iron Horse Acquisitions II Corp Units
IRHOU
$994K 0.03%
+100,000
New +$996K
APXT
156
Apex Treasury Corp
APXT
$466M
$989K 0.03%
+100,000
New +$989K
GLD icon
157
SPDR Gold Trust
GLD
$149B
$971K 0.03%
+2,450
New +$936K
META icon
158
Meta Platforms (Facebook)
META
$1.55T
$931K 0.02%
1,411
-6,589
-82% -$4.4M
NEM icon
159
Newmont
NEM
$135B
$926K 0.02%
9,270
-6,730
-42% -$608K
RAAQ
160
DELISTED
Real Asset Acquisition Corp
RAAQ
$914K 0.02%
89,610
-35
-0% -$361
ROST icon
161
Ross Stores
ROST
$73.8B
$901K 0.02%
5,000
-2,500
-33% -$417K
PKG icon
162
Packaging Corp of America
PKG
$21.1B
$885K 0.02%
4,290
-71,450
-94% -$14.5M
MAS icon
163
Masco
MAS
$14.4B
$763K 0.02%
12,020
+6,970
+138% +$452K
HTHT icon
164
Huazhu Hotels Group
HTHT
$14.2B
$761K 0.02%
16,167
-16,789
-51% -$725K
INAC
165
Indigo Acquisition Corp
INAC
$756K 0.02%
75,000
– –
SPKL
166
Spark I Acquisition Corp
SPKL
$100M
$755K 0.02%
66,832
– –
JBHT icon
167
JB Hunt Transport Services
JBHT
$25.5B
$754K 0.02%
+3,880
New +$666K
HTZ icon
168
PUT
Hertz
HTZ
$820M
$752K 0.02%
1,194,300
– –
STRK
169
Strategy Inc 8.00% Series A Perpetual Strike Preferred Stock
STRK
$566M
$751K 0.02%
9,500
– –
SABR icon
170
Sabre
SABR
$884M
$749K 0.02%
550,900
– –
SABR icon
171
PUT
Sabre
SABR
$884M
$706K 0.02%
688,600
– –
LEU icon
172
Centrus Energy
LEU
$3.38B
$654K 0.02%
+2,695
New +$814K
CCJ icon
173
Cameco
CCJ
$43.7B
$653K 0.02%
7,138
-40,027
-85% -$3.6M
CC icon
174
PUT
Chemours
CC
$2.33B
$619K 0.02%
46,900
– –
AEXA
175
American Exceptionalism Acquisition Corp
AEXA
$566M
$570K 0.02%
50,000
-350,000
-88% -$3.93M
5 6
7
8 9

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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.