Returns–Not enough quarters yet
These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.
Top holdings
At the end of June 30, 2026. Change is in shares since the quarter before.2
| Stock | Value | Share of portfolio | Change |
|---|---|---|---|
| Chart IndsCUSIP 16115Q308 | $598.6M | 52.3% | +42.0% |
| Topbuild CCUSIP 89055F103 | $170.3M | 14.9% | New |
| GOOGAlphabet I | $28.3M | 2.5% | +59.2% |
| Super MicrCUSIP 86800U500 | $28.2M | 2.5% | New |
| Klarna GroCUSIP G5279N105 | $22.8M | 2.0% | |
| Alphabet ICUSIP 02079K602 | $22.6M | 2.0% | New |
| ZZillow Gro | $10.4M | 0.9% | +206.3% |
| Oracle CorCUSIP 68389X204 | $9.0M | 0.8% | New |
| NWSANews Corp | $8.6M | 0.8% | New |
| Jena AcquiCUSIP G5093B105 | $7.3M | 0.6% | |
| FOXFox Corp | $7.1M | 0.6% | +9.5% |
| HEI/AHeico Corp | $6.1M | 0.5% | New |
| Egh AcquisCUSIP G2946P100 | $5.2M | 0.4% | |
| Iren LimitCUSIP Q4982L109 | $5.1M | 0.4% | New |
| Gores HoldCUSIP G40008123 | $5.1M | 0.4% | New |
| Oneim AcquCUSIP G6S74K106 | $5.0M | 0.4% | |
| Gores HldgCUSIP G4002F109 | $5.0M | 0.4% | |
| RIVNRivian Aut | $4.8M | 0.4% | New |
| Cantor EquCUSIP G1828S109 | $4.6M | 0.4% | |
| AEISAdvanced E | $4.4M | 0.4% | New |
| Liberty GlCUSIP G61188127 | $4.4M | 0.4% | +115.8% |
| AgriculturCUSIP G0131Y100 | $4.4M | 0.4% | |
| TrailblazeCUSIP G9009S103 | $4.0M | 0.4% | |
| ICLNIshares Tr | $4.0M | 0.3% | New |
| RBRKRubrik Inc | $3.5M | 0.3% | New |
Best picks still held
How each current holding has done since the quarter it first appeared in its filings (up to six years back).
| Stock | Held since | Return since | Now worth |
|---|---|---|---|
| Klarna GroCUSIP G5279N105 | March 31, 2026 | +54.6% | $22.8M |
| GOOGAlphabet I | March 31, 2026 | +23.2% | $28.3M |
| ACELAccel Ente | March 31, 2026 | +15.6% | $3.1M |
| NorwegianCUSIP G66721104 | March 31, 2026 | +12.9% | $3.1M |
| UAAUnder Armo | March 31, 2026 | +8.1% | $2.8M |
| Cantor EquCUSIP G1828S109 | March 31, 2026 | +2.1% | $4.6M |
| Gores HldgCUSIP G4002F109 | March 31, 2026 | +1.9% | $5.0M |
| Jena AcquiCUSIP G5093B105 | March 31, 2026 | +1.4% | $7.3M |
| New ProvidCUSIP G6476A102 | March 31, 2026 | +1.2% | $2.6M |
| AgriculturCUSIP G0131Y100 | March 31, 2026 | +1.2% | $4.4M |
Sold off last quarter
- Hologic InCUSIP 436440101 was $235.7M
- Air LeaseCUSIP 00912X302 was $185.7M
- ClearwaterCUSIP 185123106 was $151.6M
- Amicus TheCUSIP 03152W109 was $122.1M
- Sealed AirCUSIP 81211K100 was $93.1M
- OnestreamCUSIP 68278B107 was $76.5M
- Masimo CorCUSIP 574795100 was $73.4M
- Arcellx InCUSIP 03940C100 was $51.7M
- Day One BiCUSIP 23954D109 was $40.0M
- CTRACoterra En was $35.2M
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | −9.9% | +14.8% |
Sources
Every number on this page points here. Each one links to the public record.
- 1SEC EDGAR: O'Connor Alternative Investments LLC Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2081629&type=13F-HR&dateb=&owner=include&count=40CIK 2081629
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/2081629/000208162926000005/Filed August 14, 2026 · accession 0002081629-26-000005