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Interactive Brokers

791 hedge funds and large institutions have $20.9B invested in Interactive Brokers in 2025 Q2 according to their latest regulatory filings, with 144 funds opening new positions, 271 increasing their positions, 285 reducing their positions, and 79 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.58% more ownership

Funds ownership: 343.91%346.49% (+2.6%)

3% more call options, than puts

Call options by funds: $524M | Put options by funds: $511M

5% less repeat investments, than reductions

Existing positions increased: 271 | Existing positions reduced: 285

Holders
791
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
30
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$524M
Puts
$511M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
GI
376
GAMCO Investors
Connecticut
$1.28M
GIBU
377
Gulf International Bank (UK)
United Kingdom
$1.28M
ProShare Advisors
378
ProShare Advisors
Maryland
$1.27M
PCM
379
Polymer Capital Management
New York
$1.24M
NB
380
Northwest Bancshares
Pennsylvania
$1.23M
ONPI
381
Owls Nest Partners IA
Pennsylvania
$1.22M
LWCFA
382
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$1.21M
PAG
383
Private Advisory Group
Washington
$1.18M
Walleye Trading
384
Walleye Trading
New York
$1.18M
PF
385
Phoenix Financial
Israel
$1.17M
Royal London Asset Management
386
Royal London Asset Management
United Kingdom
$1.17M
SWM
387
Spire Wealth Management
Virginia
$1.15M
GC
388
Guggenheim Capital
Illinois
$1.15M
MSRPS
389
Maryland State Retirement & Pension System
Maryland
$1.14M
AAS
390
Avantax Advisory Services
Texas
$1.12M
ZIM
391
Zacks Investment Management
Illinois
$1.12M
IMRF
392
Illinois Municipal Retirement Fund
Illinois
$1.11M
AS
393
Altshuler Shaham
Israel
$1.11M
EFM
394
E Fund Management
China
$1.11M
MFS
395
Monetta Financial Services
Illinois
$1.11M
IAM
396
Ion Asset Management
Israel
$1.11M
Nomura Holdings
397
Nomura Holdings
Japan
$1.09M
PIM
398
Pullen Investment Management
Florida
$1.08M
ALMGDA
399
AG2R La Mondiale Gestion d'Actifs
France
$1.07M
WWM
400
Whalen Wealth Management
Nevada
$1.07M