ACIW ACI Worldwide Inc.

NASDAQ
$51.58

ACI Worldwide Inc. (ACIW) 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
-45.45
6 buyers / 16 sellers
STRONG SELLING
Funds compared
22
funds with comparable ACIW positions
12 current holders · 21 prior-quarter holders
Net share change
-340.9K
+1.12M added, -1.46M cut
Position activity
1 new 5 increased 6 reduced 10 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
Bridgewater Associates Quant Macro New +19.0K — $957.3K 0.0% 61
Balyasny Asset Management L.P. Sold Out -25.3K -100.0% $1.3M 0.0% 59
Qube Research & Technologies Ltd Quant Sold Out -255.3K -100.0% $12.8M 0.0% 59
North Reef Capital Management Long/Short Increased +387.0K +17.4% $19.5M 5.0% 56
CITADEL ADVISORS LLC Quant Increased +391.6K +789.5% $19.7M 0.0% 56
MILLENNIUM MANAGEMENT LLC Increased +213.7K +701.4% $10.7M 0.0% 55
Systematic Alpha Investments Quant Macro Sold Out -12.6K -100.0% $633.7K 0.0% 54
Capstone Investment Advisors Quant Macro Sold Out -10.8K -100.0% $541.2K 0.0% 53
TWO SIGMA INVESTMENTS, LP Quant Reduced -535.9K -87.7% $27.0M 0.0% 52
Lighthouse Investment Partners Sold Out -9.9K -100.0% $499.6K 0.0% 51

Most significant buyers

By move score, not size.

  • Bridgewater Associates New · +19.0K
  • North Reef Capital Management Increased · +387.0K
  • CITADEL ADVISORS LLC Increased · +391.6K
  • MILLENNIUM MANAGEMENT LLC Increased · +213.7K
  • Magnetar Capital Increased · +5.6K

Most significant sellers

By move score, not size.

  • Balyasny Asset Management L.P. Sold Out · -25.3K
  • Qube Research & Technologies Ltd Sold Out · -255.3K
  • Systematic Alpha Investments Sold Out · -12.6K
  • Capstone Investment Advisors Sold Out · -10.8K
  • TWO SIGMA INVESTMENTS, LP Reduced · -535.9K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Bridgewater Associates 1 19.0K 0 +19.0K — 0.0% New 61
Balyasny Asset Management L.P. 2 0 25.3K -25.3K -100.0% 0.0% Sold Out 59
Qube Research & Technologies Ltd 2 0 255.3K -255.3K -100.0% 0.0% Sold Out 59
North Reef Capital Management 2 2.6M 2.2M +387.0K +17.4% 5.0% Increased 56
CITADEL ADVISORS LLC 1 441.2K 49.6K +391.6K +789.5% 0.0% Increased 56
MILLENNIUM MANAGEMENT LLC 2 244.2K 30.5K +213.7K +701.4% 0.0% Increased 55
Systematic Alpha Investments 2 0 12.6K -12.6K -100.0% 0.0% Sold Out 54
Capstone Investment Advisors 3 0 10.8K -10.8K -100.0% 0.0% Sold Out 53
TWO SIGMA INVESTMENTS, LP 2 75.3K 611.3K -535.9K -87.7% 0.0% Reduced 52
Lighthouse Investment Partners 3 0 9.9K -9.9K -100.0% 0.0% Sold Out 51
Trexquant Investment 3 0 18.3K -18.3K -100.0% 0.0% Sold Out 51
Engineers Gate 4 0 25.8K -25.8K -100.0% 0.0% Sold Out 50
Brevan Howard Capital Management 3 0 15.3K -15.3K -100.0% 0.0% Sold Out 49
Squarepoint Ops LLC 2 13.0K 176.5K -163.5K -92.6% 0.0% Reduced 49
Boothbay Fund Management 4 0 5.7K -5.7K -100.0% 0.0% Sold Out 49
Y-Intercept 4 0 10.6K -10.6K -100.0% 0.0% Sold Out 48
D. E. Shaw & Co., Inc. 1 113.2K 292.2K -179.0K -61.3% 0.0% Reduced 44
RENAISSANCE TECHNOLOGIES LLC 1 177.9K 350.3K -172.4K -49.2% 0.0% Reduced 42
Gotham Asset Management, LLC 2 13.1K 28.7K -15.6K -54.3% 0.0% Reduced 37
Magnetar Capital 2 19.1K 13.4K +5.6K +41.9% 0.0% Increased 34
AQR Capital Management 3 613.0K 510.7K +102.3K +20.0% 0.0% Increased 27
Centiva Capital 4 7.0K 11.1K -4.1K -36.9% 0.0% Reduced 27

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.