ACI Worldwide
ACIW
381 hedge funds and large institutions have $4.15B invested in ACI Worldwide in 2026 Q1 according to their latest regulatory filings, with 49 funds opening new positions, 157 increasing their positions, 127 reducing their positions, and 65 closing their positions.
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
24% more repeat investments, than reductions
Existing positions increased: 157 | Existing positions reduced: 127
0.14% less ownership
Funds ownership: 99.22% → 99.08% (-0.14%)
5% less funds holding
Funds holding: 403 → 381 (-22)
15% less capital invested
Capital invested by funds: $4.89B → $4.15B (-$742M)
25% less first-time investments, than exits
New positions opened: 49 | Existing positions closed: 65
57% less call options, than puts
Call options by funds: $262K | Put options by funds: $611K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RP
Reinhart Partners
Mequon,
Wisconsin
|
+$46.3M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$42.6M |
| 3 |
Franklin Resources
San Mateo,
California
|
+$32.6M |
| 4 |
CAM
Congress Asset Management
Boston,
Massachusetts
|
+$18.6M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$14.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
American Century Companies
Kansas City,
Missouri
|
-$33.5M |
| 2 |
Ameriprise
Minneapolis,
Minnesota
|
-$30.3M |
| 3 |
HRCM
Hood River Capital Management
Palm Beach Gardens,
Florida
|
-$27.1M |
| 4 |
OAM
Oberweis Asset Management
Lisle,
Illinois
|
-$15.8M |
| 5 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$15.8M |
ACIW Hedge Fund Activity: Q1 2026 in Review
381 of the 8,181 institutional investors tracked by Wall St. Rank reported a position in ACI Worldwide (ACIW) for Q1 2026, worth a combined $4.15B — down 15% from $4.89B a quarter earlier.
Sellers outnumbered buyers: 65 funds closed out of ACIW and 49 opened new positions — a net loss of 16 holders — while 127 trimmed existing stakes and 157 added.
The largest buyer was Reinhart Partners, adding an estimated $46.3M. The largest seller was American Century Companies, cutting an estimated $33.5M.
- 381 institutional investors held ACI Worldwide (ACIW) as of Q1 2026, down from 403 in Q4 2025.
- Funds reported $4.15B of ACI Worldwide stock for Q1 2026, down 15% quarter-over-quarter.
- 49 funds opened new ACI Worldwide positions in Q1 2026 and 65 closed out, a net change of -16 holders.
- The largest ACI Worldwide buyer in Q1 2026 was Reinhart Partners, an estimated $46.3M added.
- The largest ACI Worldwide seller in Q1 2026 was American Century Companies, an estimated $33.5M sold.
Based on aggregated 13F filings for Q1 2026.