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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
HOG icon
176
PUT
Harley-Davidson
HOG
$2.95B
$550K 0.01%
250,000
-125,000
-33% -$3.07M
AAL icon
177
PUT
American Airlines Group
AAL
$8.69B
$534K 0.01%
5,460,000
-3,850,000
-41% -$51.9M
SE icon
178
Sea Limited
SE
$68.7B
$510K 0.01%
+4,000
New +$592K
CHTR icon
179
PUT
Charter Communications
CHTR
$18.1B
$510K 0.01%
21,100
+600
+3% +$135K
GRAB icon
180
Grab
GRAB
$14B
$506K 0.01%
+101,500
New +$561K
SBXD
181
SilverBox Corp IV
SBXD
$506K 0.01%
47,830
– –
BCSS
182
Bain Capital GSS Investment Corp
BCSS
$602M
$504K 0.01%
+50,000
New +$504K
RIG icon
183
CALL
Transocean
RIG
$6.53B
$460K 0.01%
400,000
– –
F icon
184
PUT
Ford
F
$58.3B
$448K 0.01%
900,000
– –
CROX icon
185
PUT
Crocs
CROX
$5.63B
$425K 0.01%
81,000
– –
SKIL icon
186
Skillsoft
SKIL
$61.1M
$388K 0.01%
41,692
– –
RIG icon
187
PUT
Transocean
RIG
$6.53B
$188K 0.01%
483,400
– –
MGM icon
188
PUT
MGM Resorts International
MGM
$10.4B
$181K ﹤0.01%
82,600
– –
CMCSA icon
189
CALL
Comcast
CMCSA
$94B
$173K ﹤0.01%
+100,000
New +$2.85M
XIFR
190
PUT
XPLR Infrastructure LP
XIFR
$1.14B
$164K ﹤0.01%
20,600
– –
BEAGR
191
Bold Eagle Acquisition Corp Right
BEAGR
$134K ﹤0.01%
400,000
– –
BGS icon
192
PUT
B&G Foods
BGS
$267M
$79.5K ﹤0.01%
113,600
– –
BLZRW
193
Trailblazer Acquisition Corp Warrant
BLZRW
$3.12M
$68.7K ﹤0.01%
+133,333
New +$78.2K
AMC icon
194
AMC Entertainment Holdings
AMC
$2.37B
$61.9K ﹤0.01%
39,688
– –
BACCR
195
Blue Acquisition Corp Right
BACCR
$60.1K ﹤0.01%
200,000
– –
CLMT icon
196
PUT
Calumet Specialty Products
CLMT
$4.67B
$50.5K ﹤0.01%
175,000
– –
FTW.WS
197
Presidio Production Co Warrants
FTW.WS
$41.2K ﹤0.01%
+80,724
New +$44.9K
HLF icon
198
PUT
Herbalife
HLF
$1.3B
$33K ﹤0.01%
82,400
– –
SVACW
199
DELISTED
Spring Valley Acquisition Corp III Warrant
SVACW
$31.5K ﹤0.01%
+50,000
New +$39.7K
STWD icon
200
PUT
Starwood Property Trust
STWD
$5.95B
$30.2K ﹤0.01%
172,500
– –
6 7
8
9 10

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ACI
Alpha Cubed Investments Irvine, California $2.92B AUM 31.27% 1-Year Est. Return
RC
RGM Capital Naples, Florida $2.06B AUM 8.49% 1-Year Est. Return
A
AlphaQuest New York $1.79B AUM 10.61% 1-Year Est. Return
CGL
Clarius Group LLC Seattle, Washington $1.75B AUM 19.04% 1-Year Est. Return
CB
Cadence Bank Tupelo, Mississippi $1.71B AUM 16.17% 1-Year Est. Return
JCM
Janney Capital Management Pittsburgh, Pennsylvania $1.59B AUM 23.25% 1-Year Est. Return
MPM
Meritage Portfolio Management Overland Park, Kansas $1.51B AUM 26.61% 1-Year Est. Return

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.