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O'Connor Alternative Investments portfolio

Type not verified

Portfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗

A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.

This 13F omits positions for which the manager requested confidential treatment from the SEC: the portfolio may be incomplete until they are disclosed.

O'Connor Alternative Investments reported a $1.1 bn portfolio of 131 companies (140 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are Chart Industries, BLD, GOOG. During the quarter it opened TopBuild and Oracle.

Stock portfolio
$1.1 bn
Companies
131
140 positions (by CUSIP)Top 10: 79%
Turnover
66%
Copying its 13F, 5 years
—
Not calculated: not counted as a concentrated manager

Sections with a free account

What changed this quarter

54 positions with a change (44 new, 6 added to, 4 trimmed); also, 7 entered through an IPO, 4 entered through a spin-off. 4 are listed here: those of 0.5 points of the portfolio or more (up to 12).

It started trading this quarter: it appears in a 13F for the first time. The filing does not say whether the manager already held it before the listing, so it is not counted as a purchase.

The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.

Top holdings

Portfolio by sector

  • ● Industrials 68%
  • ● SPAC / vehículos 13%
  • ● No sector 8%
  • ● Communication Services 4%
  • ● Financials 2%
  • ● Information Technology 1%
  • ● Consumer Discretionary 1%
  • ● Real Estate 1%
  • ● Health Care 1%

13F filings with amendments or confidential positions

Declared options (7)

Besides stocks, O'Connor Alternative Investments declared 7 puts (they gain if the stock falls) with a notional of $1.6M. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.

Stakes above 5% (13D/13G)

Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.

How we classify it

Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.

Not counted as a concentrated manager: it has fewer than 8 quarters of history; its portfolio is not within 5 to 100 positions. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided

Managers of a similar size

A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.

Follow O'Connor Alternative Investments for free

When the next 13F is filed, we email you (if you turn it on) and it shows in your list. No credit card.

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