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Interactive Brokers

988 hedge funds and large institutions have $25.4B invested in Interactive Brokers in 2026 Q1 according to their latest regulatory filings, with 136 funds opening new positions, 399 increasing their positions, 324 reducing their positions, and 104 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
988
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
35
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$394M
Puts
$284M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
D.E. Shaw & Co
101
D.E. Shaw & Co
New York
$33M
New York State Common Retirement Fund
102
New York State Common Retirement Fund
New York
$31.1M
Renaissance Technologies
103
Renaissance Technologies
New York
$31M
AllianceBernstein
104
AllianceBernstein
Tennessee
$29.3M
CBUSF
105
Construction & Building Unions Superannuation Fund
Australia
$28.4M
Adage Capital Partners
106
Adage Capital Partners
Massachusetts
$26.8M
SAM
107
Storebrand Asset Management
Norway
$26.5M
FFM
108
Fullerton Fund Management
Singapore
$26.3M
State Board of Administration of Florida Retirement System
109
State Board of Administration of Florida Retirement System
Florida
$25.8M
Qube Research & Technologies (QRT)
110
Qube Research & Technologies (QRT)
United Kingdom
$25.2M
Mawer Investment Management
111
Mawer Investment Management
Alberta, Canada
$24.8M
CPC
112
Cookson Peirce & Co
Pennsylvania
$24.8M
RBI
113
Raiffeisen Bank International
Austria
$24.7M
Massachusetts Financial Services
114
Massachusetts Financial Services
Massachusetts
$24.6M
Natixis Advisors
115
Natixis Advisors
Massachusetts
$24.5M
GF
116
Gabelli Funds
New York
$24.4M
WorldQuant Millennium Advisors
117
WorldQuant Millennium Advisors
New York
$24.1M
Aviva
118
Aviva
United Kingdom
$23.9M
WP
119
Woodline Partners
California
$23.8M
Allianz Asset Management
120
Allianz Asset Management
Germany
$23.3M
Zurich Cantonal Bank
121
Zurich Cantonal Bank
Switzerland
$23.2M
Universal-Beteiligungs- und Servicegesellschaft
122
Universal-Beteiligungs- und Servicegesellschaft
Germany
$22.7M
Tudor Investment Corp
123
Tudor Investment Corp
Connecticut
$22.6M
BNP Paribas Asset Management
124
BNP Paribas Asset Management
France
$22.5M
WC
125
Winmill & Co
New York
$21.9M