O'Connor Alternative Investments LLC: 13F holdings, Q2 2026
Hedge fund · SEC EDGAR filings (CIK 2081629) · Explore on the interactive board
O'Connor Alternative Investments LLC disclosed 149 US equity positions worth $1.4bn in its Q2 2026 13F filing (holdings as of June 30, 2026, filed August 14, 2026). Its largest position is CHART INDS at 43.7% of the reported book, followed by BLD*, NET. The top ten holdings are 75.8% of the book, and the portfolio behaves like about 5 equal-weight positions. Versus the prior filing it opened 61 new positions, added to 9, reduced 5 and exited 25. Note: this manager's most recent filing is 3934 quarters behind the newest quarter on file, so these figures are history rather than current positioning.
What does O'Connor Alternative Investments LLC own? Top holdings as of June 30, 2026
Change is measured in shares against the previous filing (Q1 2026), so price moves do not read as decisions. This quarter: 61 new, 9 added, 5 reduced, 25 exited.
| # | Stock | Sector | Weight | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|---|
| 1 | CHART INDS | 43.7% | $598.6m | 2,865,147 | 42% | added | |
| 2 | BLD* TOPBUILD C | 12.4% | $170.3m | 480,292 | – | new | |
| 3 | NET CLOUDFLARE | Technology | 3.6% | $48.9m | 38,000,000 | 77% | added |
| 4 | SNOW SNOWFLAKE | Technology | 2.7% | $37.2m | 21,000,000 | -16% | reduced |
| 5 | ON ON SEMICON | Technology | 2.2% | $30.2m | 25,000,000 | 25% | added |
| 6 | AKAM AKAMAI TEC | Technology | 2.2% | $29.8m | 25,000,000 | 67% | added |
| 7 | GOOG ALPHABET I | Communication Services | 2.1% | $28.3m | 80,020 | 59% | added |
| 8 | SUPER MICR | 2.1% | $28.2m | 550,000 | – | new | |
| 9 | KLAR KLARNA GRO | Financial Services | 1.7% | $22.8m | 1,127,170 | 0% | held |
| 10 | GOOG ALPHABET I | Communication Services | 1.6% | $22.6m | 450,000 | – | new |
| 11 | GAMESTOP C | 1.5% | $20.5m | 20,000,000 | – | new | |
| 12 | LIVE NATIO | 1.3% | $17.8m | 10,000,000 | -33% | reduced | |
| 13 | DASH DOORDASH I | Consumer Cyclical | 1.1% | $14.8m | 15,000,000 | – | new |
| 14 | AKAMAI TEC | 1.1% | $14.6m | 10,000,000 | – | new | |
| 15 | Z ZILLOW GRO | Communication Services | 0.8% | $10.4m | 330,595 | 206% | added |
| 16 | HALO HALOZYME T | 0.7% | $10.2m | 7,000,000 | – | new | |
| 17 | ORACLE COR | 0.7% | $9.0m | 200,000 | – | new | |
| 18 | NWSA NEWS CORP | Communication Services | 0.6% | $8.6m | 348,019 | – | new |
| 19 | JENA ACQUI | 0.5% | $7.3m | 700,000 | 0% | held | |
| 20 | FOX FOX CORP | Communication Services | 0.5% | $7.1m | 150,908 | 10% | added |
| 21 | HEI/A HEICO CORP | 0.4% | $6.1m | 23,615 | – | new | |
| 22 | EGH ACQUIS | 0.4% | $5.2m | 500,000 | 0% | held | |
| 23 | IREN IREN LIMIT | Financial Services | 0.4% | $5.1m | 111,300 | – | new |
| 24 | GORES HOLD | 0.4% | $5.1m | 500,000 | – | new | |
| 25 | ONEIM ACQU | 0.4% | $5.0m | 500,000 | 0% | held | |
| 26 | GORES HLDG | 0.4% | $5.0m | 474,796 | -0% | held | |
| 27 | RIVN RIVIAN AUT | Consumer Cyclical | 0.4% | $4.8m | 279,000 | – | new |
| 28 | CANTOR EQU | 0.3% | $4.6m | 450,000 | 0% | held | |
| 29 | AEIS ADVANCED E | Industrials | 0.3% | $4.4m | 11,850 | – | new |
| 30 | LIBERTY GL | 0.3% | $4.4m | 401,616 | 116% | added | |
| 31 | AGRICULTUR | 0.3% | $4.4m | 384,160 | 0% | held | |
| 32 | TRAILBLAZE | 0.3% | $4.0m | 400,000 | 0% | held | |
| 33 | ICLN ISHARES TR | 0.3% | $4.0m | 193,000 | – | new | |
| 34 | RBRK RUBRIK INC | Technology | 0.3% | $3.5m | 43,600 | – | new |
| 35 | NRG NRG ENERGY | Utilities | 0.2% | $3.2m | 22,000 | – | new |
| 36 | OAKTREE AC | 0.2% | $3.2m | 300,000 | 0% | held | |
| 37 | ACEL ACCEL ENTE | Consumer Cyclical | 0.2% | $3.1m | 246,728 | 0% | held |
| 38 | NCLH NORWEGIAN | Consumer Cyclical | 0.2% | $3.1m | 145,200 | 0% | held |
| 39 | GENERAL CA | 0.2% | $3.0m | 300,000 | – | new | |
| 40 | UAA UNDER ARMO | Consumer Cyclical | 0.2% | $2.8m | 438,543 | 10% | added |
| 41 | STELLAR V | 0.2% | $2.6m | 250,000 | 0% | held | |
| 42 | COLLECTIVE | 0.2% | $2.6m | 250,000 | 0% | held | |
| 43 | NEW PROVID | 0.2% | $2.6m | 250,000 | 0% | held | |
| 44 | THAYER VEN | 0.2% | $2.6m | 250,000 | 0% | held | |
| 45 | BLUE WTR A | 0.2% | $2.6m | 250,000 | 0% | held | |
| 46 | TALON CAP | 0.2% | $2.6m | 250,000 | 0% | held | |
| 47 | SOLARIUS C | 0.2% | $2.6m | 250,000 | 0% | held | |
| 48 | OXLEY BRID | 0.2% | $2.6m | 250,000 | 0% | held | |
| 49 | XOP SPDR SERIE | 0.2% | $2.6m | 16,570 | – | new | |
| 50 | ARKK ARK ETF TR | 0.2% | $2.6m | 31,600 | – | new |
What did O'Connor Alternative Investments LLC sell? Positions exited since the previous filing
| Stock | Prior weight | Prior value |
|---|---|---|
| HO1 HOLOGIC IN | 19.7% | $235.7m |
| AIR LEASE | 15.5% | $185.7m |
| CWAN CLEARWATER | 12.7% | $151.6m |
| AM6 AMICUS THE | 10.2% | $122.1m |
| SEALED AIR | 7.8% | $93.1m |
| K4F ONESTREAM | 6.4% | $76.5m |
| MASI* MASIMO COR | 6.1% | $73.4m |
| ACLXGBX ARCELLX IN | 4.3% | $51.7m |
| DAWNGBX DAY ONE BI | 3.3% | $40.0m |
| CTRA COTERRA EN | 2.9% | $35.2m |
| DUKE ENERG | 2.3% | $27.7m |
| CCL CARNIVAL P | 2.1% | $25.3m |
| APLSUSD APELLIS PH | 1.0% | $12.1m |
| SMH VANECK ETF | 0.9% | $10.5m |
| RNA ATRIUM THE | 0.6% | $7.7m |
| KENSINGTON | 0.4% | $5.0m |
| TRG LATIN | 0.3% | $3.5m |
| LIVE OAK A | 0.3% | $3.4m |
| NEWHOLD IN | 0.3% | $3.4m |
| WDC WESTERN DI | 0.3% | $3.2m |
| ARMADA ACQ | 0.3% | $3.0m |
| CWEN CLEARWAY E | 0.2% | $2.9m |
| GP-ACT III | 0.2% | $2.7m |
| CARTESIAN | 0.2% | $2.6m |
| QDRO ACQUI | 0.2% | $2.5m |
Sector mix
| Sector | Weight |
|---|---|
| Technology | 10.9% |
| Communication Services | 5.6% |
| Financial Services | 2.3% |
| Consumer Cyclical | 2.1% |
| Healthcare | 0.5% |
| Industrials | 0.4% |
Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.
Filing history
How concentrated is O'Connor Alternative Investments LLC's portfolio?
Across every quarter O'Connor Alternative Investments LLC has filed, its median largest position is 32.8% of the book and its median top-ten weight is 75.8%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 39.0 completed holding spells, the median lasted 1.0 quarters; 148.0 positions are still open and their final length is unknown.