Marshall Wace
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Marshall Wace’s International Bancshares IBOC Stock Holding History

Marshall Wace’s Portfolio IBOC Stock Details IBOC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-16,946
Closed -$1.14M – 3419
2026
Q1 		$1.14M Buy
+16,946
New +$1.17M ﹤0.01% 2077
2021
Q4 		– Sell
-6,412
Closed -$267K – 4045
2021
Q3 		$267K Buy
+6,412
New +$262K ﹤0.01% 2697
2020
Q2 		– Sell
-10,324
Closed -$278K – 1735
2020
Q1 		$278K Buy
+10,324
New +$370K ﹤0.01% 1113
2019
Q2 		– Sell
-14,550
Closed -$553K – 1562
2019
Q1 		$553K Buy
+14,550
New +$550K 0.01% 1110

Other funds holding IBOC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $13.1B AUM 24.63% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Marshall Wace's IBOC Position: Q2 2026 in Review

Marshall Wace sold out of International Bancshares (IBOC) in Q2 2026, closing a stake of 16,946 shares — an estimated $1.14M sold.

Marshall Wace first reported a position in IBOC in Q1 2019 and held it in 4 quarters. The position peaked at $1.14M in Q1 2026. 302 funds tracked by Wall St. Rank hold IBOC as of Q2 2026.

  • Marshall Wace reported no remaining International Bancshares position as of Q2 2026 after selling out during the quarter.
  • Marshall Wace sold 16,946 International Bancshares shares in Q2 2026, an estimated $1.14M.
  • Marshall Wace first reported a position in International Bancshares in Q1 2019 and held it in 4 quarters.
  • Marshall Wace's International Bancshares position peaked at $1.14M in Q1 2026.
  • 302 funds tracked by Wall St. Rank held International Bancshares as of Q2 2026.

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