MF
ACIW icon

Magnetar Financial’s ACI Worldwide ACIW Stock Holding History

Magnetar Financial’s Portfolio ACIW Stock Details ACIW Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$958K Buy
19,054
+5,627
+42% +$245K 0.01% 447
2026
Q1 		$551K Sell
13,427
-18,826
-58% -$791K 0.01% 609
2025
Q4 		$1.54M Buy
+32,253
New +$1.56M 0.02% 382
2025
Q3 		– Sell
-14,223
Closed -$653K – 861
2025
Q2 		$653K Buy
+14,223
New +$699K ﹤0.01% 502
2025
Q1 		– Sell
-11,678
Closed -$606K – 719
2024
Q4 		$606K Sell
11,678
-2,632
-18% -$140K 0.01% 346
2024
Q3 		$728K Buy
14,310
+893
+7% +$40.8K 0.02% 305
2024
Q2 		$531K Buy
+13,417
New +$467K 0.01% 325
2021
Q2 		– Sell
-5,797
Closed -$221K – 1177
2021
Q1 		$221K Buy
+5,797
New +$229K ﹤0.01% 968
2013
Q4 		– Sell
-59,400
Closed -$1.07M – 220
2013
Q3 		$1.07M Buy
59,400
+42,297
+247% +$696K 0.02% 281
2013
Q2 		$265K Buy
+17,103
New +$259K 0.01% 334

Other funds holding ACIW

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
NRCM
North Reef Capital Management Laguna Beach, California $2.61B AUM 11.5% 1-Year Est. Return

Magnetar Financial's ACIW Position: Q2 2026 in Review

Magnetar Financial increased its ACI Worldwide (ACIW) stake by 42% in Q2 2026, buying an estimated $245K and bringing the position to 19,054 shares worth $958K. The position accounts for 0.01% of the portfolio, ranked #447.

Magnetar Financial first reported a position in ACIW in Q2 2013 and has held it in 10 quarters since. The position peaked at $1.54M in Q4 2025. 378 funds tracked by Wall St. Rank hold ACIW as of Q2 2026.

  • Magnetar Financial held 19,054 shares of ACI Worldwide worth $958K as of Q2 2026.
  • Magnetar Financial bought 5,627 ACI Worldwide shares in Q2 2026, an estimated $245K.
  • ACI Worldwide made up 0.01% of Magnetar Financial's portfolio in Q2 2026, its #447 holding.
  • Magnetar Financial first reported a position in ACI Worldwide in Q2 2013 and has held it in 10 quarters since.
  • Magnetar Financial's ACI Worldwide position peaked at $1.54M in Q4 2025.
  • 378 funds tracked by Wall St. Rank held ACI Worldwide as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.