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UOC

UBS O'Connor Portfolio holdings

AUM $3.38B
1-Year Est. Return 63.08%
This Fund
S&P 500
This Quarter Est. Return
+17.89%
1 Year Est. Return
+63.08%
3 Year Est. Return
+180.99%
5 Year Est. Return
+483.22%
10 Year Est. Return
+2,128.62%
AUM
$3.38B
AUM Growth
+$322M
Cap. Flow
+$113M
Cap. Flow %
3.35%
Top 10 Hldgs %
70.53%
Holding
345
New
79
Increased
16
Reduced
40
Closed
110

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 28.49%
2 Healthcare 21.6%
3 Financials 19.98%
4 Industrials 8.83%
5 Communication Services 8.32%

No holdings matched the selected filter criteria.

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UBS O'Connor's Q4 2025 Portfolio in Review

As of Q4 2025, UBS O'Connor held 345 positions worth $3.38B, up 11% from $3.05B the previous quarter. Its ten largest holdings account for 71% of the portfolio.

UBS O'Connor deployed $113M of net new capital in Q4 2025, opening 79 new positions and adding to 16 existing holdings. Its largest new stake was Dayforce: 4,096,708 shares worth $283M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 24% a quarter earlier, followed by Healthcare and Financials.

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 71% of its $3.38B portfolio in Q4 2025.
  • UBS O'Connor opened 79 new positions and closed 110 in Q4 2025.
  • UBS O'Connor's portfolio value rose 11% quarter-over-quarter to $3.38B.

Based on UBS O'Connor's 13F filing for Q4 2025, filed 13 Feb 2026.