Marshall Wace
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Marshall Wace’s Interactive Brokers IBKR Stock Holding History

Marshall Wace’s Portfolio IBKR Stock Details IBKR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$36M Sell
414,093
-463,673
-53% -$38.6M 0.03% 488
2026
Q1 		$58.9M Sell
877,766
-2,326,481
-73% -$166M 0.06% 308
2025
Q4 		$206M Sell
3,204,247
-280,304
-8% -$18.8M 0.19% 82
2025
Q3 		$240M Sell
3,484,551
-1,930,819
-36% -$121M 0.24% 61
2025
Q2 		$300M Buy
5,415,370
+635,742
+13% +$30.2M 0.34% 42
2025
Q1 		$198M Buy
4,779,628
+2,733,084
+134% +$135M 0.25% 62
2024
Q4 		$90.4M Sell
2,046,544
-3,517,840
-63% -$148M 0.11% 170
2024
Q3 		$194M Sell
5,564,384
-4,463,852
-45% -$138M 0.24% 70
2024
Q2 		$307M Buy
10,028,236
+1,927,304
+24% +$57.5M 0.41% 32
2024
Q1 		$226M Sell
8,100,932
-4,543,604
-36% -$113M 0.34% 44
2023
Q4 		$262M Buy
12,644,536
+2,477,820
+24% +$50.7M 0.44% 32
2023
Q3 		$220M Buy
10,166,716
+376,560
+4% +$8.38M 0.45% 32
2023
Q2 		$203M Buy
9,790,156
+2,483,184
+34% +$49M 0.4% 35
2023
Q1 		$151M Sell
7,306,972
-804,300
-10% -$16.4M 0.32% 60
2022
Q4 		$147M Sell
8,111,272
-4,656,668
-36% -$87M 0.33% 59
2022
Q3 		$204M Sell
12,767,940
-2,494,908
-16% -$38.4M 0.45% 25
2022
Q2 		$210M Sell
15,262,848
-2,711,128
-15% -$40.3M 0.43% 36
2022
Q1 		$296M Buy
17,973,976
+536,212
+3% +$9.23M 0.56% 17
2021
Q4 		$346M Buy
17,437,764
+10,502,400
+151% +$195M 0.64% 18
2021
Q3 		$108M Buy
6,935,364
+1,543,672
+29% +$24.3M 0.45% 23
2021
Q2 		$88.6M Buy
5,391,692
+2,718,800
+102% +$47M 0.4% 39
2021
Q1 		$48.8M Buy
2,672,892
+2,620,584
+5,010% +$47.2M 0.22% 81
2020
Q4 		$797K Sell
52,308
-240,892
-82% -$3.19M ﹤0.01% 1305
2020
Q3 		$3.54M Buy
293,200
+122,568
+72% +$1.53M 0.02% 630
2020
Q2 		$1.78M Buy
+170,632
New +$1.78M 0.01% 831
2018
Q3 		– Sell
-88,084
Closed -$1.42M – 1207
2018
Q2 		$1.42M Buy
+88,084
New +$1.59M 0.02% 467
2015
Q2 		– Sell
-24,504
Closed -$208K – 959
2015
Q1 		$208K Buy
+24,504
New +$195K ﹤0.01% 754

Other funds holding IBKR

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
GWM
Greenwich Wealth Management Greenwich, Connecticut $2.74B AUM 36.19% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Marshall Wace's IBKR Position: Q2 2026 in Review

Marshall Wace reduced its Interactive Brokers (IBKR) stake by 53% in Q2 2026, selling an estimated $38.6M and leaving 414,093 shares worth $36M. The position accounts for 0.03% of the portfolio, ranked #488.

Marshall Wace first reported a position in IBKR in Q1 2015 and has held it in 27 quarters since. The position peaked at $346M in Q4 2021. 1,115 funds tracked by Wall St. Rank hold IBKR as of Q2 2026.

  • Marshall Wace held 414,093 shares of Interactive Brokers worth $36M as of Q2 2026.
  • Marshall Wace sold 463,673 Interactive Brokers shares in Q2 2026, an estimated $38.6M.
  • Interactive Brokers made up 0.03% of Marshall Wace's portfolio in Q2 2026, its #488 holding.
  • Marshall Wace first reported a position in Interactive Brokers in Q1 2015 and has held it in 27 quarters since.
  • Marshall Wace's Interactive Brokers position peaked at $346M in Q4 2021.
  • 1,115 funds tracked by Wall St. Rank held Interactive Brokers as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.