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Interactive Brokers

746 hedge funds and large institutions have $15.7B invested in Interactive Brokers in 2025 Q1 according to their latest regulatory filings, with 136 funds opening new positions, 270 increasing their positions, 259 reducing their positions, and 88 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding

Funds holding:

more ownership

Funds ownership:

4% more repeat investments, than reductions

Existing positions increased: 270 | Existing positions reduced: 259

7% less capital invested

Capital invested by funds: $16.9B → $15.7B (-$1.2B)

27% less funds holding in top 10

Funds holding in top 10: 3022 (-8)

Holders
746
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
22
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$391M
Puts
$306M
Net Calls
Net Calls Change

Top Buyers

1 +$266M
2 +$135M
3 +$82.5M
4
Two Sigma Advisers
Two Sigma Advisers
New York
+$75.8M
5
KBC Group
KBC Group
Belgium
+$74.4M
Name Holding Trade Value Shares
Change
Change in
Stake
451
$544K
452
$538K
453
$522K
454
$521K
455
$519K
456
$513K
457
$512K
458
$508K
459
$505K
460
$499K
461
$495K
462
$492K
463
$482K
464
$481K
465
$478K
466
$455K
467
$450K
468
$444K
469
$443K
470
$441K
471
$440K
472
$427K
473
$425K
474
$425K
475
$424K