O'Connor Alternative Investments LLC

Adviser

CIK

2081629

Location

NEW YORK, NY

Portfolio Value

Mid $1,137,974,669

Diversification

Highly concentrated

Filing Date

Global Rank

#2,309 / 8,818 ▼ 734

Top Industry

Specialty Industrial Machinery 53.9%

Period ended 4 months ago

Filed Aug 14, 2026 · 2mo

2 quarters · since Mar 2026

Confidential Treatment — This manager has requested confidential treatment for one or more investments in the most recent 13F filing. The portfolio shown may be incomplete.

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Adviser

Schedule 13G, Apr 29, 2026

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Concentrated

The top 10 positions are 80.2% of the book (60%+)

Turnover

Turnover unknown

It needs four straight quarters of measured turnover

Horizon

Short horizon

Value-weighted holding period 1.7 quarters (under 4)

Closest benchmark: every 13F filer's combined book, active share 93.6%; sector active share 64.3% against the combined 13F book's sector weights.

Over time 2 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

144 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

52.6%

+28.8 pts

Top 5

76.6%

+13.2 pts

Top 10

80.1%

−2.3 pts

HHI

3,029

Highly concentrated+1,961

Portfolio Trend

2 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Industrials	68.8%	$783,097,858	7
Financial Services	16.3%	$185,702,263	92
Communication Services	7.2%	$81,456,437	6
Technology	2.8%	$32,403,117	5
Unclassified	2.2%	$24,807,798	12
Consumer Cyclical	1.3%	$14,351,924	7
Healthcare	0.6%	$6,795,144	6
Utilities	0.4%	$4,694,166	3
Consumer Defensive	0.3%	$3,148,872	4
Basic Materials	0.1%	$1,517,090	2

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

6 positions

Ticker	Company	Δ Shares	Shares	Value
—		+846,804	2,865,147	$598,643,814
Z	Zillow Group, Inc.	+222,665	330,595	$10,420,354
LBTYK	Liberty Global Ltd.	+215,516	401,616	$4,417,776
UAA	Under Armour, Inc.	+38,543	438,543	$2,802,289
GOOG	Alphabet Inc.	+29,770	80,020	$28,273,466
FOX	Fox Corp	+13,128	150,908	$7,068,530
No positions match the current search.

Trimmed

Positions the filer reduced

4 positions

Ticker	Company	Δ Shares	Shares	Value
BACC	Blue Acquisition Corp	−50,000	150,000	$1,590,000
BACCR	Blue Acquisition Corp	−50,000	150,000	$117,750
BEAG	Bold Eagle Acquisition Corp.	−19,217	200,000	$2,136,000
GTEN	Gores Holdings X, Inc.	−145	474,796	$4,952,122
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
—		480,292	$170,277,922
SMCIP	Super Micro Computer, Inc.	550,000	$28,578,000
GOOGN	Alphabet Inc.	450,000	$22,635,000
NWSA	News Corp	348,019	$8,641,311
HEI-A	Heico Corp	23,615	$6,090,544
IREN	IREN Ltd	111,300	$5,089,749
GHXI	Gores Holdings XI, Inc.	500,000	$5,070,000
RIVN	Rivian Automotive, Inc.	279,000	$4,840,650
AEIS	Advanced Energy Industries Inc	11,850	$4,418,509
ICLN	iShares Global Clean Energy ETF	193,000	$3,954,570
RBRK	Rubrik, Inc.	43,600	$3,500,208
NRG	Nrg Energy, Inc.	22,000	$3,213,320
GCGR	General Catalyst Global Resilience Merger Corp.	300,000	$3,027,000
—		16,570	$2,556,088
—		31,600	$2,553,912
—		73,600	$2,511,232
EWJ	iShares MSCI Japan ETF	26,700	$2,490,309
WLCO	Wilco 63 Corp	250,000	$2,487,500
QADR	QDRO Acquisition Corp.	250,000	$2,477,500
IHI	iShares U.S. Medical Devices ETF	50,000	$2,470,500
TAN	Invesco Ltd.	41,700	$2,466,555
—		48,500	$2,465,255
KEYY	Keystone Acquisition Corp.	250,000	$2,465,000
LWAC	LightWave Acquisition Corp.	200,000	$2,044,000
BID	Tribeca Strategic Acquisition Corp.	200,000	$1,990,000
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
—		3,118,178	$235,703,075
—		2,860,079	$185,733,530
—		6,409,535	$151,585,502
—		8,444,992	$122,114,584
—		2,214,582	$93,123,173
—		3,186,804	$76,483,296
—		412,903	$73,443,057
—		450,504	$51,726,869
—		1,867,553	$40,040,336
—		1,002,337	$35,222,121
CUK	CARNIVAL PLC	982,643	$25,322,710
—		300,000	$12,068,999
SMH	VanEck Semiconductor ETF	27,500	$10,543,500
RNA	Atrium Therapeutics, Inc.	578,011	$7,728,007
TRGSU	TRG Latin America Acquisitions Corp.	350,000	$3,482,500
TMS	Teamshares Inc	324,923	$3,379,199
—		324,604	$3,366,143
WDC	Western Digital Corp	12,000	$3,245,880
XRPNU	Armada Acquisition Corp. II	300,000	$3,183,000
GPAT	GP-Act III Acquisition Corp.	250,000	$2,710,000
FAC	Factorial Energy Inc.	250,000	$2,563,750
QADRU	QDRO Acquisition Corp.	250,000	$2,477,500
ORCL	Oracle Corp	16,425	$2,416,281
ATII	Archimedes Tech SPAC Partners II Co.	200,000	$2,082,000
ALF	Centurion Acquisition Corp.	150,000	$1,614,000
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

144 tracked positions · $1,137,974,669 total · filing declares 156 positions · $1,370,611,571 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 144 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
		Added	2,865,147	+846,804	$598,643,814	+43.5%	2	before history	52.61%
		NEW	480,292	NEW	$170,277,922	NEW	1	unpriced	14.96%
SMCIP	Super Micro Computer, Inc. Technology	NEW	550,000	NEW	$28,578,000	NEW	1	unpriced	2.51%
GOOG	Alphabet Inc. Communication Services	Added	80,020	+29,770	$28,273,466	+96.1%	2	before history	2.48%
KLAR	Klarna Group plc Financial Services	Held	1,127,170	0	$22,813,920	+54.6%	2	before history	2.00%
GOOGN	Alphabet Inc. Communication Services	NEW	450,000	NEW	$22,635,000	NEW	1	unpriced	1.99%
Z	Zillow Group, Inc. Communication Services	Added	330,595	+222,665	$10,420,354	+133.3%	2	before history	0.92%
NWSA	News Corp Communication Services	NEW	348,019	NEW	$8,641,311	NEW	1	$25.91	0.76%
JENA	JENA ACQUISITION Corp II Financial Services	Held	700,000	0	$7,252,000	+1.4%	2	before history	0.64%
FOX	Fox Corp Communication Services	Added	150,908	+13,128	$7,068,530	−3.4%	2	before history	0.62%
HEI-A	Heico Corp Industrials	NEW	23,615	NEW	$6,090,544	NEW	1	$228.50	0.54%
EGHA	EGH Acquisition Corp. Financial Services	Held	500,000	0	$5,145,000	+0.8%	2	before history	0.45%
IREN	IREN Ltd Financial Services	NEW	111,300	NEW	$5,089,749	NEW	1	$51.99	0.45%
GHXI	Gores Holdings XI, Inc. Financial Services	NEW	500,000	NEW	$5,070,000	NEW	1	unpriced	0.45%
OIM	OneIM Acquisition Corp. Financial Services	Held	500,000	0	$5,035,000	+1.1%	2	before history	0.44%
GTEN	Gores Holdings X, Inc. Financial Services	Reduced	474,796	-145	$4,952,122	+1.8%	2	before history	0.44%
RIVN	Rivian Automotive, Inc. Consumer Cyclical	NEW	279,000	NEW	$4,840,650	NEW	1	$15.60	0.43%
CEPV	Cantor Equity Partners V, Inc. Financial Services	Held	450,000	0	$4,640,850	+2.1%	2	before history	0.41%
AEIS	Advanced Energy Industries Inc Industrials	NEW	11,850	NEW	$4,418,509	NEW	1	$349.69	0.39%
LBTYK	Liberty Global Ltd. Communication Services	Added	401,616	+215,516	$4,417,776	+102.4%	2	before history	0.39%
		Held	384,160	0	$4,387,107	+1.2%	2	before history	0.39%
BLZR	Trailblazer Acquisition Corp. Financial Services	Held	400,000	0	$4,048,000	+0.7%	2	before history	0.36%
ICLN	iShares Global Clean Energy ETF	NEW	193,000	NEW	$3,954,570	NEW	1	unpriced	0.35%
RBRK	Rubrik, Inc. Technology	NEW	43,600	NEW	$3,500,208	NEW	1	$62.89	0.31%
NRG	Nrg Energy, Inc. Utilities	NEW	22,000	NEW	$3,213,320	NEW	1	$143.99	0.28%
OACC	Oaktree Acquisition Corp. III Life Sciences Financial Services	Held	300,000	0	$3,210,000	+1.1%	2	before history	0.28%
ACEL	Accel Entertainment, Inc. Consumer Cyclical	Held	246,728	0	$3,111,240	+15.6%	2	before history	0.27%
NCLH	Norwegian Cruise Line Holdings Ltd. Consumer Cyclical	Held	145,200	0	$3,065,172	+12.9%	2	before history	0.27%
GCGR	General Catalyst Global Resilience Merger Corp. Financial Services	NEW	300,000	NEW	$3,027,000	NEW	1	unpriced	0.27%
UAA	Under Armour, Inc. Consumer Cyclical	Added	438,543	+38,543	$2,802,289	+18.5%	2	before history	0.25%
SVCC	Stellar V Capital Corp. (Cayman Islands) Financial Services	Held	250,000	0	$2,637,500	+1.0%	2	before history	0.23%
CCAQ	Collective Acquisition Corp. Financial Services	Held	250,000	0	$2,607,500	+1.0%	2	before history	0.23%
NPAC	New Providence Acquisition Corp. III Financial Services	Held	250,000	0	$2,595,250	+1.2%	2	before history	0.23%
BLUW	Blue Water Acquisition Corp. III Financial Services	Held	250,000	0	$2,582,500	+0.5%	2	before history	0.23%
TVAI	Thayer Ventures Acquisition Corp II Financial Services	Held	250,000	0	$2,580,000	+1.1%	2	before history	0.23%
TLNC	Talon Capital Corp. Financial Services	Held	250,000	0	$2,577,500	+1.1%	2	before history	0.23%
SOCA	Solarius Capital Acquisition Corp. Financial Services	Held	250,000	0	$2,565,000	+0.9%	2	before history	0.23%
PACH	Pioneer Acquisition I Corp Financial Services	Held	250,000	0	$2,557,500	+1.0%	2	before history	0.22%
		NEW	16,570	NEW	$2,556,088	NEW	1	$167.31	0.22%
OBA	Oxley Bridge Acquisition Ltd Financial Services	Held	250,000	0	$2,555,000	+0.9%	2	before history	0.22%
		NEW	31,600	NEW	$2,553,912	NEW	1	$76.47	0.22%
HVMC	Highview Merger Corp. Financial Services	Held	250,000	0	$2,540,000	+1.1%	2	before history	0.22%
KOYN	CSLM Digital Asset Acquisition Corp III, Ltd Financial Services	Held	250,000	0	$2,535,000	+1.0%	2	before history	0.22%
MBVI	M3-Brigade Acquisition VI Corp. Financial Services	Held	250,000	0	$2,532,500	+0.8%	2	before history	0.22%
		NEW	73,600	NEW	$2,511,232	NEW	1	$33.65	0.22%
EWJ	iShares MSCI Japan ETF	NEW	26,700	NEW	$2,490,309	NEW	1	$90.78	0.22%
WLCO	Wilco 63 Corp Financial Services	NEW	250,000	NEW	$2,487,500	NEW	1	unpriced	0.22%
QADR	QDRO Acquisition Corp. Financial Services	NEW	250,000	NEW	$2,477,500	NEW	1	unpriced	0.22%
IHI	iShares U.S. Medical Devices ETF	NEW	50,000	NEW	$2,470,500	NEW	1	unpriced	0.22%
TAN	Invesco Ltd. Financial Services	NEW	41,700	NEW	$2,466,555	NEW	1	$60.73	0.22%

Showing the top 50 of 144 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

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.