O'Connor Alternative Investments LLC
Filing Date
Mar 31, 2026
Global Rank
#1,694
/ 8,604
· as of Mar 2026
Top Industry
Medical Instruments & Supplies
24.3%
Period ended 3 months ago
Filed May 15, 2026 · 55d
Clone Performance
May 2026–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+0.4%
SPY
+1.0%
Annualised alpha
—
Max drawdown
−0.4%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
89 positions · as of Mar 31, 2026Top Position
22.1%
of portfolio value
Top 5
67.0%
of portfolio value
Top 10
83.7%
of portfolio value
HHI
1,135
Diversified
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Healthcare | 38.1% | $405,586,002 |
| Industrials | 20.0% | $213,241,272 |
| Financial Services | 13.0% | $138,084,587 |
| Consumer Cyclical | 11.9% | $126,337,956 |
| Unclassified | 8.9% | $94,740,496 |
| Technology | 8.1% | $86,765,057 |
| Consumer Defensive | 0.0% | $178,858 |
89 positions ·
$1,064,934,228 total
· as of Mar 31, 2026
All sectors
Basic Materials
Consumer Cyclical
Consumer Defensive
Financial Services
Healthcare
Industrials
Technology
Showing 1–50
of 89 positions by value
· page 1 of 2
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| HOLX |
HOLOGIC INC
Healthcare
|
First | 3,118,178 | $235,703,075 | 22.13% | |
| AL |
SUMISHO AIR LEASE CORP
Industrials
|
First | 2,860,079 | $185,733,530 | 17.44% | |
| FOLD |
AMICUS THERAPEUTICS, INC.
Healthcare
|
First | 8,444,992 | $122,114,584 | 11.47% | |
| SEE |
SEALED AIR CORP/DE
Consumer Cyclical
|
First | 2,214,582 | $93,123,173 | 8.74% | |
| OS |
OneStream, Inc.
Technology
|
First | 3,186,804 | $76,483,296 | 7.18% | |
| SPY |
Spdr S&P 500 ETF Trust
|
First | 115,000 | $74,789,100 | 7.02% | |
| DAWN |
Day One Biopharmaceuticals, Inc.
Healthcare
|
First | 1,867,553 | $40,040,336 | 3.76% | |
| CUK |
CARNIVAL PLC
Consumer Cyclical
|
First | 982,643 | $25,322,710 | 2.38% | |
| AAL |
American Airlines Group Inc.
Industrials
|
First | 2,133,300 | $22,911,642 | 2.15% | |
| QQQ |
Invesco Qqq Trust, Series 1
|
First | 26,000 | $15,006,680 | 1.41% | |
| KLAR |
Klarna Group plc
Financial Services
|
First | 1,127,170 | $14,754,655 | 1.39% | |
| RNA |
Atrium Therapeutics, Inc.
Healthcare
|
First | 578,011 | $7,728,007 | 0.73% | |
| JENA |
JENA ACQUISITION Corp II
Financial Services
|
First | 700,000 | $7,154,000 | 0.67% | |
| EGHA |
EGH Acquisition Corp.
Financial Services
|
First | 500,000 | $5,105,000 | 0.48% | |
| OIM |
OneIM Acquisition Corp.
Financial Services
|
First | 500,000 | $4,980,000 | 0.47% | |
| GTEN |
Gores Holdings X, Inc. / CI
Financial Services
|
First | 474,941 | $4,863,395 | 0.46% | |
| CEPV |
Cantor Equity Partners V, Inc.
Financial Services
|
First | 450,000 | $4,545,000 | 0.43% | |
| ANSC |
Agriculture & Natural Solutions Acquisition Corp
Financial Services
|
First | 384,160 | $4,337,166 | 0.41% | |
| TMS |
Teamshares Inc
Financial Services
|
First | 324,923 | $3,379,199 | 0.32% | |
| NHIC |
NewHold Investment Corp. III
|
First | 324,604 | $3,366,143 | 0.32% | |
| WDC |
Western Digital Corp
Technology
|
First | 12,000 | $3,245,880 | 0.30% | |
| OACC |
Oaktree Acquisition Corp. III Life Sciences
Financial Services
|
First | 300,000 | $3,174,000 | 0.30% | |
| SNOW |
Snowflake Inc.
Technology
|
First | 20,000 | $3,016,400 | 0.28% | |
| NCLH |
Norwegian Cruise Line Holdings Ltd.
Consumer Cyclical
|
First | 145,200 | $2,715,240 | 0.25% | |
| GPATU |
GP-Act III Acquisition Corp.
Financial Services
|
First | 250,000 | $2,710,000 | 0.25% | |
| ACEL |
Accel Entertainment, Inc.
Consumer Cyclical
|
First | 246,728 | $2,691,802 | 0.25% | |
| SVCC |
Stellar V Capital Corp. (Cayman Islands)
Financial Services
|
First | 250,000 | $2,612,500 | 0.25% | |
| CCAQ |
Collective Acquisition Corp.
Financial Services
|
First | 250,000 | $2,582,500 | 0.24% | |
| NPAC |
New Providence Acquisition Corp. III/Cayman
Financial Services
|
First | 250,000 | $2,565,000 | 0.24% | |
| FAC |
Factorial Energy Inc.
Industrials
|
First | 250,000 | $2,563,750 | 0.24% | |
| TLNC |
Talon Capital Corp.
Financial Services
|
First | 250,000 | $2,550,000 | 0.24% | |
| SOCA |
Solarius Capital Acquisition Corp.
Financial Services
|
First | 250,000 | $2,542,500 | 0.24% | |
| HVMC |
Highview Merger Corp.
Financial Services
|
First | 250,000 | $2,512,500 | 0.24% | |
| MBVI |
M3-Brigade Acquisition VI Corp.
Financial Services
|
First | 250,000 | $2,512,500 | 0.24% | |
| KOYN |
CSLM Digital Asset Acquisition Corp III, Ltd
Financial Services
|
First | 250,000 | $2,510,000 | 0.24% | |
| ORCL |
Oracle Corp
Technology
|
First | 16,425 | $2,416,281 | 0.23% | |
| UAA |
Under Armour, Inc.
Consumer Cyclical
|
First | 400,000 | $2,364,000 | 0.22% | |
| BEAG |
Bold Eagle Acquisition Corp.
Financial Services
|
First | 219,217 | $2,313,835 | 0.22% | |
| RNGT |
Range Capital Acquisition Corp II
Financial Services
|
First | 225,000 | $2,250,000 | 0.21% | |
| ATII |
Archimedes Tech SPAC Partners II Co.
Financial Services
|
First | 200,000 | $2,082,000 | 0.20% | |
| GSHR |
Gesher Acquisition Corp. II
Financial Services
|
First | 200,000 | $2,072,000 | 0.19% | |
| CCII |
Cohen Circle Acquisition Corp. II
Financial Services
|
First | 200,000 | $2,044,000 | 0.19% | |
| BACC |
Blue Acquisition Corp/Cayman
Financial Services
|
First | 200,000 | $2,042,000 | 0.19% | |
| BE |
Bloom Energy Corp
Industrials
|
First | 15,000 | $2,032,350 | 0.19% | |
| CRAQ |
Cal Redwood Acquisition Corp.
Financial Services
|
First | 200,000 | $2,030,000 | 0.19% | |
| FVAV |
Fortress Value Acquisition Corp. V
Financial Services
|
First | 200,000 | $2,006,000 | 0.19% | |
| CEPF |
Cantor Equity Partners IV, Inc.
Financial Services
|
First | 174,570 | $1,778,868 | 0.17% | |
| AXIN |
Axiom Intelligence Acquisition Corp 1
Financial Services
|
First | 175,000 | $1,772,750 | 0.17% | |
| OTGA |
OTG Acquisition Corp. I
Financial Services
|
First | 175,000 | $1,760,500 | 0.17% | |
| AACB |
Artius II Acquisition Inc.
Financial Services
|
First | 160,000 | $1,654,400 | 0.16% |