ACI Worldwide
ACIW
377 hedge funds and large institutions have $5.22B invested in ACI Worldwide in 2026 Q2 according to their latest regulatory filings, with 50 funds opening new positions, 144 increasing their positions, 132 reducing their positions, and 47 closing their positions.
26% more capital invested
Capital invested by funds: $4.15B → $5.22B (+$1.07B)
3.43% more ownership
Funds ownership: 99.08% → 102.51% (+3.4%)
9% more repeat investments, than reductions
Existing positions increased: 144 | Existing positions reduced: 132
6% more first-time investments, than exits
New positions opened: 50 | Existing positions closed: 47
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
1% less funds holding
Funds holding: 381 → 377 (-4)
38% less call options, than puts
Call options by funds: $528K | Put options by funds: $855K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$190M |
| 2 |
Fuller & Thaler Asset Management
San Mateo,
California
|
+$25.3M |
| 3 |
VLKIM
Van Lanschot Kempen Investment Management
Amsterdam,
Netherlands
|
+$17.1M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$17M |
| 5 |
NRCM
North Reef Capital Management
Laguna Beach,
California
|
+$16.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GACM
Global Alpha Capital Management
Montreal,
Quebec, Canada
|
-$37.6M |
| 2 |
BlackRock
New York
|
-$27.7M |
| 3 |
Two Sigma Investments
New York
|
-$23.3M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
-$18.7M |
| 5 |
PCM
Palisade Capital Management
Fort Lee,
New Jersey
|
-$16.3M |
ACIW Hedge Fund Activity: Q2 2026 in Review
377 of the 8,295 institutional investors tracked by Wall St. Rank reported a position in ACI Worldwide (ACIW) for Q2 2026, worth a combined $5.22B — up 26% from $4.15B a quarter earlier.
Buyers outnumbered sellers: 50 funds opened new ACIW positions and 47 closed out — a net gain of 3 holders — while 144 added to existing stakes and 132 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $190M. The largest seller was Global Alpha Capital Management, exiting entirely with an estimated $37.6M sold.
- 377 institutional investors held ACI Worldwide (ACIW) as of Q2 2026, down from 381 in Q1 2026.
- Funds reported $5.22B of ACI Worldwide stock for Q2 2026, up 26% quarter-over-quarter.
- 50 funds opened new ACI Worldwide positions in Q2 2026 and 47 closed out, a net change of +3 holders.
- The largest ACI Worldwide buyer in Q2 2026 was Fidelity Investments, an estimated $190M added.
- The largest ACI Worldwide seller in Q2 2026 was Global Alpha Capital Management, an estimated $37.6M sold.
Based on aggregated 13F filings for Q2 2026.