Interactive Brokers: which funds bought and sold

Institutions that bought and sold Interactive Brokers shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 578 institutions that filed 13F reports for both quarters added to or opened positions in Interactive Brokers, and 444 cut or closed them. Together they added a net 1.5M shares, +0.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.1M shares (+1.1%); index fund managers were net sellers of 3.5M shares (−3.0%). 179 opened a new position and 68 sold out entirely.

Bought, Q2 2026 578 institutions, 179 of them new holders Sold, Q2 2026 444 institutions, 68 of them sold out

Net change, all compared +1.5M shares (+0.4%)

Net change, active managers +1.1M shares (+1.1%), 48 bought, 35 sold

Buyers versus sellers

institutions compared, 1,156

578 bought 134 444 sold

Active managers and hedge funds 48 bought · 35 sold · +1.1M

Index fund managers 10 bought · 2 sold · −3.5M

Other institutions 520 bought · 407 sold · +3.9M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Ninety One Uk Ltd	+5.3M New position	5.3M	$458M
Viking Global Investors LP Hedge fund	+3.4M +246.5%	4.8M	$420M
Blackrock, Inc. Index funds	+1.8M +5.6%	33.1M	$2.9B
Jane Street Group, LLC	+1.6M +89.5%	3.4M	$292M
AGF Management Ltd	+1.5M New position	1.5M	$126M
TD Asset Management Inc	+1.2M +47.9%	3.7M	$318M
UBS Group AG	+1.1M +50.5%	3.4M	$296M
D. E. Shaw & Co., Inc. Hedge fund	+1.1M +226.0%	1.6M	$139M
Qube Research & Technologies Ltd Hedge fund	+1.1M +284.7%	1.4M	$126M
Deutsche Bank Ag\	+1.0M +95.7%	2.1M	$181M
Goldman Sachs Group Inc	+935K +29.0%	4.2M	$362M
HRT Financial LP	+869K +113.8%	1.6M	$142M
Neuberger Berman Group LLC Active manager	+869K +23.3%	4.6M	$401M
Point72 Asset Management, L.P. Hedge fund	+805K +1305.5%	867K	$75.5M
Mackenzie Financial Corp	+780K +1568.9%	829K	$72.2M
BAMCO Inc Active manager	+760K +18.8%	4.8M	$418M
Healthcare Of Ontario Pension Plan Trust Fund	+739K +280.9%	1.0M	$87.2M
Walleye Capital LLC Hedge fund	+711K +6925.6%	721K	$62.8M
Squarepoint Ops LLC Hedge fund	+649K +205.3%	964K	$83.9M
Lone Pine Capital LLC Hedge fund	+578K New position	578K	$50.3M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Viking Global Investors LP Hedge fund	+3.4M +246.5%	4.8M	$420M
D. E. Shaw & Co., Inc. Hedge fund	+1.1M +226.0%	1.6M	$139M
Qube Research & Technologies Ltd Hedge fund	+1.1M +284.7%	1.4M	$126M
Neuberger Berman Group LLC Active manager	+869K +23.3%	4.6M	$401M
Point72 Asset Management, L.P. Hedge fund	+805K +1305.5%	867K	$75.5M
BAMCO Inc Active manager	+760K +18.8%	4.8M	$418M
Walleye Capital LLC Hedge fund	+711K +6925.6%	721K	$62.8M
Squarepoint Ops LLC Hedge fund	+649K +205.3%	964K	$83.9M
Lone Pine Capital LLC Hedge fund	+578K New position	578K	$50.3M
Congress Asset Management Co Active manager	+556K +57.3%	1.5M	$133M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Cantillon Capital Management LLC	−10.7M −95.4%	518K	$45.1M
Vanguard Portfolio Management LLC Index funds	−6.3M −41.8%	8.7M	$759M
Kayne Anderson Rudnick Investment Management LLC Active manager	−3.7M −36.4%	6.4M	$554M
Wellington Management Group LLP Active manager	−2.4M −24.5%	7.4M	$643M
Egerton Capital (UK) LLP Hedge fund	−2.1M −34.2%	4.1M	$359M
Jpmorgan Chase & Co	−1.5M −22.8%	5.2M	$458M
Ensign Peak Advisors, Inc	−961K −65.1%	516K	$44.9M
FMR LLC Active manager	−673K −5.4%	11.8M	$1B
Wells Fargo & Company	−616K −21.3%	2.3M	$198M
Jacobs Levy Equity Management, Inc Active manager	−532K −13.5%	3.4M	$296M
Soros Fund Management LLC Hedge fund	−494K −76.5%	151K	$13.2M
Marshall Wace, LLP Hedge fund	−464K −52.8%	414K	$36M
Amundi	−404K −16.6%	2.0M	$177M
Bronte Capital Management Pty Ltd.	−398K −31.1%	884K	$76.9M
Renaissance Technologies LLC Hedge fund	−398K −86.2%	64K	$5.6M
Bristol Gate Capital Partners Inc.	−378K −33.3%	757K	$65.9M
Worldquant Millennium Advisors LLC Hedge fund	−355K −98.6%	5,171	$450,084
BNP Paribas Asset Management Holding S.A.	−277K −82.8%	58K	$5M
Bank Of America Corp	−276K −4.4%	6.0M	$518M
Legal & General Group PLC	−220K −8.8%	2.3M	$199M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Kayne Anderson Rudnick Investment Management LLC Active manager	−3.7M −36.4%	6.4M	$554M
Wellington Management Group LLP Active manager	−2.4M −24.5%	7.4M	$643M
Egerton Capital (UK) LLP Hedge fund	−2.1M −34.2%	4.1M	$359M
FMR LLC Active manager	−673K −5.4%	11.8M	$1B
Jacobs Levy Equity Management, Inc Active manager	−532K −13.5%	3.4M	$296M
Soros Fund Management LLC Hedge fund	−494K −76.5%	151K	$13.2M
Marshall Wace, LLP Hedge fund	−464K −52.8%	414K	$36M
Renaissance Technologies LLC Hedge fund	−398K −86.2%	64K	$5.6M
Worldquant Millennium Advisors LLC Hedge fund	−355K −98.6%	5,171	$450,084
Azora Capital LP Hedge fund	−211K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Ninety One Uk Ltd	5.3M	$458M
AGF Management Ltd	1.5M	$126M
Lone Pine Capital LLCHedge fund	578K	$50.3M
Freestone Grove Partners LPHedge fund	518K	$45.1M
Gfi Investment Counsel Ltd.	339K	$29.5M
Balyasny Asset Management L.P.Hedge fund	275K	$23.9M
Blue Sparrow, LLC	200K	$17.4M
Longbow Finance SA	161K	$14M
Zurich Insurance Group Ltd	148K	$12.9M
Howard Capital Management, LLC	113K	$9.9M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Azora Capital LPHedge fund	211K	$14.2M
Capital Impact Advisors, LLC	167K	$11.2M
Gfs Advisors, LLC	61K	$10.6M
Csm Advisors, LLC	70K	$4.7M
Y-Intercept (Hong Kong) Ltd	66K	$4.4M
Illumine Investment Management, LLC	53K	$3.6M
Capitolis Liquid Global Markets LLC	35K	$2.4M
Virtus Investment Advisers, LLC	25K	$1.7M
Pmc Fig Opportunities LLC	24K	$1.6M
Highland Capital Management, LLC	21K	$1.4M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 1,106
Ten largest holders: 38.0%
Index fund managers: 28.7%
Active managers and hedge funds: 24.1%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	48	35	13	2	+1.1M	+1.1%
Index fund managers	10	2	0	0	−3.5M	−3.0%
Other institutions	520	407	166	66	+3.9M	+2.3%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Interactive Brokers.

Only managers that filed a holdings report for both quarters are compared (1,156 here). 35 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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