O'Connor Alternative Investments LLC
Filing Date
Mar 31, 2026
Global Rank
#1,695
/ 8,622
· as of Mar 2026
Top Industry
Medical Instruments & Supplies
24.2%
Period ended 4 months ago
Filed May 15, 2026 · 2mo
Clone Performance
May 2026–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Cloned portfolio
-0.1%
SPY
+0.1%
Annualised alpha
—
Max drawdown
−0.9%
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 89% of reported value on average across 1 quarter. Past performance does not predict future results.
Portfolio Concentration
91 tracked positions · as of Mar 31, 2026Top Position
22.1%
of portfolio value
Top 5
66.7%
of portfolio value
Top 10
83.4%
of portfolio value
HHI
1,128
Diversified
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Healthcare | 38.0% | $405,586,002 |
| Industrials | 20.1% | $214,257,272 |
| Financial Services | 13.2% | $140,639,087 |
| Consumer Cyclical | 11.8% | $126,337,956 |
| Unclassified | 8.9% | $94,740,496 |
| Technology | 8.1% | $86,765,057 |
| Consumer Defensive | 0.0% | $178,858 |
91 tracked positions ·
$1,068,504,728 total
· as of Mar 31, 2026
All sectors
Basic Materials
Consumer Cyclical
Consumer Defensive
Financial Services
Healthcare
Industrials
Technology
Showing 1–50
of 91 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 | 22.06% | |
| AL |
SUMISHO AIR LEASE CORP
Industrials
|
First | 2,860,079 | $185,733,530 | 17.38% | |
| FOLD |
AMICUS THERAPEUTICS, INC.
Healthcare
|
First | 8,444,992 | $122,114,584 | 11.43% | |
| SEE |
SEALED AIR CORP/DE
Consumer Cyclical
|
First | 2,214,582 | $93,123,173 | 8.72% | |
| OS |
OneStream, Inc.
Technology
|
First | 3,186,804 | $76,483,296 | 7.16% | |
| SPY |
Spdr S&P 500 ETF Trust
PUT
|
First | 115,000 | $74,789,100 | 7.00% | |
| DAWN |
Day One Biopharmaceuticals, Inc.
Healthcare
|
First | 1,867,553 | $40,040,336 | 3.75% | |
| CUK |
CARNIVAL PLC
Consumer Cyclical
|
First | 982,643 | $25,322,710 | 2.37% | |
| AAL |
American Airlines Group Inc.
PUT
Industrials
|
First | 2,133,300 | $22,911,642 | 2.14% | |
| QQQ |
Invesco Qqq Trust, Series 1
PUT
|
First | 26,000 | $15,006,680 | 1.40% | |
| KLAR |
Klarna Group plc
Financial Services
|
First | 1,127,170 | $14,754,655 | 1.38% | |
| RNA |
Atrium Therapeutics, Inc.
Healthcare
|
First | 578,011 | $7,728,007 | 0.72% | |
| 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.
CALL
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% | |
| GPAT |
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 | 0.24% | |
| 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% | |
| TVAI |
Thayer Ventures Acquisition Corp II
Financial Services
|
First | 250,000 | $2,552,500 | 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 | 0.23% | |
| 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 | 0.19% | |
| 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
CALL
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 | 0.16% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.