IBM International Business Machines Corporation

NYSE
$229.55

International Business Machines Corporation (IBM) 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
+20.93
26 buyers / 17 sellers
BUYING
Funds compared
44
funds with comparable IBM positions
37 current holders · 31 prior-quarter holders
Net share change
+3.17M
+4.15M added, -981.9K cut
Position activity
13 new 13 increased 10 reduced 7 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
Alyeska Investment Group, L.P. New +449.6K — $126.4M 0.4% 66
MARSHALL WACE, LLP Long/Short Increased +1.41M +491.2% $397.9M 0.6% 63
Hudson Bay Capital Management Event New +200.0K — $56.2M 0.3% 61
CITADEL ADVISORS LLC Quant Increased +389.9K +106.2% $109.6M 0.1% 60
LMR Partners Event Quant New +100.5K — $28.3M 0.3% 58
WORLDQUANT MILLENNIUM ADVISORS LLC Quant New +12.0K — $3.4M 0.0% 58
Tudor Investment Corporation Macro New +50.0K — $14.1M 0.1% 58
MILLENNIUM MANAGEMENT LLC Increased +333.4K +255.1% $93.8M 0.1% 58
Holocene Advisors, LP New +1.4K — $406.1K 0.0% 56
Quadrature Capital Quant Sold Out -25.2K -100.0% $7.1M 0.0% 55

Most significant buyers

By move score, not size.

  • Alyeska Investment Group, L.P. New · +449.6K
  • MARSHALL WACE, LLP Increased · +1.41M
  • Hudson Bay Capital Management New · +200.0K
  • CITADEL ADVISORS LLC Increased · +389.9K
  • LMR Partners New · +100.5K

Most significant sellers

By move score, not size.

  • Quadrature Capital Sold Out · -25.2K
  • Parallax Volatility Advisers Sold Out · -31.5K
  • Aquatic Capital Management Sold Out · -46.0K
  • Y-Intercept Sold Out · -40.2K
  • Qube Research & Technologies Ltd Reduced · -130.6K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Alyeska Investment Group, L.P. 2 449.6K 0 +449.6K — 0.4% New 66
MARSHALL WACE, LLP 2 1.7M 288.1K +1.41M +491.2% 0.6% Increased 63
Hudson Bay Capital Management 3 200.0K 0 +200.0K — 0.3% New 61
CITADEL ADVISORS LLC 1 757.0K 367.2K +389.9K +106.2% 0.1% Increased 60
LMR Partners 3 100.5K 0 +100.5K — 0.3% New 58
WORLDQUANT MILLENNIUM ADVISORS LLC 2 12.0K 0 +12.0K — 0.0% New 58
Tudor Investment Corporation 2 50.0K 0 +50.0K — 0.1% New 58
MILLENNIUM MANAGEMENT LLC 2 464.1K 130.7K +333.4K +255.1% 0.1% Increased 58
Holocene Advisors, LP 2 1.4K 0 +1.4K — 0.0% New 56
Quadrature Capital 3 0 25.2K -25.2K -100.0% 0.0% Sold Out 55
Capula Management 2 63.0K 648 +62.4K +9627.8% 0.2% Increased 55
Walleye Capital 3 300.2K 105.8K +194.4K +183.8% 0.7% Increased 54
Parallax Volatility Advisers 3 0 31.5K -31.5K -100.0% 0.0% Sold Out 54
J. Goldman & Co. 3 28.2K 0 +28.2K — 0.3% New 54
Aquatic Capital Management 4 0 46.0K -46.0K -100.0% 0.0% Sold Out 54
Balyasny Asset Management L.P. 2 55.0K 26.2K +28.8K +109.8% 0.0% Increased 53
Y-Intercept 4 0 40.2K -40.2K -100.0% 0.0% Sold Out 53
Qube Research & Technologies Ltd 2 1.6K 132.2K -130.6K -98.8% 0.0% Reduced 53
Caption Management 3 10.5K 0 +10.5K — 0.1% New 53
Cinctive Capital Management 3 13.4K 0 +13.4K — 0.2% New 52
Brevan Howard Capital Management 3 4.9K 0 +4.9K — 0.0% New 51
Schonfeld Strategic Advisors 3 0 1.1K -1.1K -100.0% 0.0% Sold Out 51
Boothbay Fund Management 4 5.9K 0 +5.9K — 0.0% New 51
Capstone Investment Advisors 3 20.1K 151.7K -131.6K -86.8% 0.1% Reduced 50
Verition Fund Management 2 10.3K 2.0K +8.4K +421.4% 0.0% Increased 50
Readystate Asset Management 3 0 862 -862 -100.0% 0.0% Sold Out 50
Graham Capital Management 3 0 1.4K -1.4K -100.0% 0.0% Sold Out 49
Squarepoint Ops LLC 2 44.7K 219.2K -174.6K -79.6% 0.0% Reduced 48
TWO SIGMA INVESTMENTS, LP 2 35.8K 19.8K +16.0K +81.1% 0.0% Increased 48
Engineers Gate 4 1.9K 0 +1.9K — 0.0% New 48
Capital Fund Management 3 29.0K 150.8K -121.8K -80.7% 0.1% Reduced 48
Quantbot Technologies 4 1.3K 0 +1.3K — 0.0% New 45
Man Group 3 37.4K 162.7K -125.3K -77.0% 0.0% Reduced 45
Centiva Capital 4 84 4.2K -4.1K -98.0% 0.0% Reduced 44
Chilton Investment Company 2 487.0K 470.9K +16.1K +3.4% 3.4% Increased 43
Alphadyne Asset Management 3 1.3K 6.8K -5.5K -80.8% 0.0% Reduced 43
AQR Capital Management 3 2.7M 1.9M +800.6K +42.4% 0.3% Increased 40
D. E. Shaw & Co., Inc. 1 338.0K 440.5K -102.5K -23.3% 0.1% Reduced 37
ADAGE CAPITAL PARTNERS GP, L.L.C. 2 898.2K 937.4K -39.2K -4.2% 0.4% Reduced 31
Gotham Asset Management, LLC 2 39.8K 33.1K +6.7K +20.3% 0.0% Increased 31
Voleon Capital Management 3 2.6K 2.1K +533 +25.6% 0.0% Increased 26
Woodline Partners LP 2 340.4K 340.8K -449 -0.1% 0.3% Reduced 25
Edgestream Partners 4 2.0K 1.7K +312 +18.2% 0.0% Increased 22
Systematic Alpha Investments 2 2.0K 2.0K 0 +0.0% 0.0% Unchanged 18

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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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.