IBKR Interactive Brokers Group, Inc.

NASDAQ
$90.75

Interactive Brokers Group, Inc. (IBKR) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+23.40
29 buyers / 18 sellers
BUYING
Funds compared
47
funds with comparable IBKR positions
44 current holders · 38 prior-quarter holders
Net share change
+5.66M
+10.28M added, -4.62M cut
Position activity
9 new 20 increased 15 reduced 3 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
VIKING GLOBAL INVESTORS LP Growth Increased +3.44M +246.5% $299.1M 1.2% 71
Egerton Capital Long/Short Growth Reduced -2.15M -34.2% $186.8M 3.5% 68
Lone Pine Capital Long/Short Growth New +577.7K — $50.3M 0.3% 68
Azora Capital Long/Short Sold Out -211.4K -100.0% $18.4M 0.0% 62
Balyasny Asset Management L.P. New +274.5K — $23.9M 0.0% 61
Point72 Asset Management, L.P. Increased +805.4K +1305.5% $70.1M 0.1% 60
D. E. Shaw & Co., Inc. Quant Increased +1.11M +226.0% $96.7M 0.1% 58
Alyeska Investment Group, L.P. New +28.8K — $2.5M 0.0% 58
Qube Research & Technologies Ltd Quant Increased +1.07M +284.7% $92.9M 0.1% 56
Squarepoint Ops LLC Quant Increased +648.6K +205.3% $56.5M 0.2% 55

Most significant buyers

By move score, not size.

  • VIKING GLOBAL INVESTORS LP Increased · +3.44M
  • Lone Pine Capital New · +577.7K
  • Balyasny Asset Management L.P. New · +274.5K
  • Point72 Asset Management, L.P. Increased · +805.4K
  • D. E. Shaw & Co., Inc. Increased · +1.11M

Most significant sellers

By move score, not size.

  • Egerton Capital Reduced · -2.15M
  • Azora Capital Sold Out · -211.4K
  • WORLDQUANT MILLENNIUM ADVISORS LLC Reduced · -354.8K
  • RENAISSANCE TECHNOLOGIES LLC Reduced · -397.8K
  • Y-Intercept Sold Out · -65.8K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
VIKING GLOBAL INVESTORS LP 1 4.8M 1.4M +3.44M +246.5% 1.2% Increased 71
Egerton Capital 1 4.1M 6.3M -2.15M -34.2% 3.5% Reduced 68
Lone Pine Capital 1 577.7K 0 +577.7K — 0.3% New 68
Azora Capital 2 0 211.4K -211.4K -100.0% 0.0% Sold Out 62
Balyasny Asset Management L.P. 2 274.5K 0 +274.5K — 0.0% New 61
Point72 Asset Management, L.P. 1 867.1K 61.7K +805.4K +1305.5% 0.1% Increased 60
D. E. Shaw & Co., Inc. 1 1.6M 491.5K +1.11M +226.0% 0.1% Increased 58
Alyeska Investment Group, L.P. 2 28.8K 0 +28.8K — 0.0% New 58
Qube Research & Technologies Ltd 2 1.4M 375.0K +1.07M +284.7% 0.1% Increased 56
Squarepoint Ops LLC 2 964.4K 315.8K +648.6K +205.3% 0.2% Increased 55
WORLDQUANT MILLENNIUM ADVISORS LLC 2 5.2K 360.0K -354.8K -98.6% 0.0% Reduced 54
Holocene Advisors, LP 2 278.6K 18.7K +259.9K +1392.8% 0.1% Increased 54
Walleye Capital 3 721.4K 10.3K +711.1K +6925.6% 0.5% Increased 54
RENAISSANCE TECHNOLOGIES LLC 1 63.9K 461.7K -397.8K -86.2% 0.0% Reduced 53
Tudor Investment Corporation 2 741.9K 336.7K +405.2K +120.3% 0.3% Increased 53
Schonfeld Strategic Advisors 3 49.1K 0 +49.1K — 0.0% New 53
Capstone Investment Advisors 3 7.6K 0 +7.6K — 0.0% New 53
Graham Capital Management 3 25.4K 0 +25.4K — 0.1% New 52
Alphadyne Asset Management 3 2.6K 0 +2.6K — 0.0% New 51
Centiva Capital 4 25.2K 0 +25.2K — 0.1% New 51
Y-Intercept 4 0 65.8K -65.8K -100.0% 0.0% Sold Out 51
Caption Management 3 3.0K 0 +3.0K — 0.0% New 50
Voloridge Investment Management 2 89.4K 18.4K +71.0K +386.5% 0.0% Increased 50
Quadrature Capital 3 34.6K 16.5K +18.1K +109.8% 0.0% Increased 49
Winton Group 4 0 10.1K -10.1K -100.0% 0.0% Sold Out 48
Jain Global 3 25.6K 232.7K -207.1K -89.0% 0.0% Reduced 48
Edgestream Partners 4 98.3K 37.4K +60.9K +162.8% 0.3% Increased 46
Engineers Gate 4 108.4K 11.6K +96.7K +831.3% 0.1% Increased 44
Parallax Volatility Advisers 3 3.6K 1 +3.6K +358300.0% 0.0% Increased 44
Brevan Howard Capital Management 3 9.7K 113.9K -104.2K -91.5% 0.0% Reduced 44
Boothbay Fund Management 4 4.8K 69.9K -65.1K -93.1% 0.0% Reduced 43
Trexquant Investment 3 52.3K 223.6K -171.3K -76.6% 0.0% Reduced 43
Quinn Opportunity Partners 4 12.5K 92.0K -79.5K -86.4% 0.1% Reduced 43
CITADEL ADVISORS LLC 1 1.1M 736.3K +345.5K +46.9% 0.1% Increased 43
MARSHALL WACE, LLP 2 414.1K 877.8K -463.7K -52.8% 0.0% Reduced 43
Bridgewater Associates 1 42.1K 72.3K -30.3K -41.8% 0.0% Reduced 43
Woodline Partners LP 2 189.6K 354.7K -165.1K -46.5% 0.1% Reduced 39
MILLENNIUM MANAGEMENT LLC 2 772.1K 585.8K +186.3K +31.8% 0.1% Increased 38
Man Group 3 99.7K 212.3K -112.6K -53.0% 0.0% Reduced 36
TWO SIGMA INVESTMENTS, LP 2 8.3M 8.3M +27.4K +0.3% 0.6% Increased 31
Voleon Capital Management 3 18.0K 12.7K +5.3K +41.9% 0.0% Increased 30
ExodusPoint Capital Management 3 106.9K 91.5K +15.4K +16.8% 0.1% Increased 28
Moore Capital Management 3 35.8K 29.0K +6.8K +23.3% 0.1% Increased 27
ADAGE CAPITAL PARTNERS GP, L.L.C. 2 397.0K 399.0K -2.0K -0.5% 0.0% Reduced 25
AQR Capital Management 3 211.1K 242.6K -31.5K -13.0% 0.0% Reduced 25
Gotham Asset Management, LLC 2 109.3K 114.8K -5.5K -4.8% 0.0% Reduced 25
Quantbot Technologies 4 21.0K 15.1K +5.9K +38.9% 0.1% Increased 24

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.