Two Sigma Investments
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Two Sigma Investments’s Interactive Brokers IBKR Stock Holding History

Two Sigma Investments’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 		$726M Buy
8,340,400
+27,429
+0.3% +$2.28M 0.53% 24
2026
Q1 		$558M Buy
8,312,971
+4,786,150
+136% +$342M 0.45% 30
2025
Q4 		$227M Sell
3,526,821
-48,632
-1% -$3.26M 0.32% 45
2025
Q3 		$246M Buy
3,575,453
+552,725
+18% +$34.8M 0.37% 33
2025
Q2 		$167M Buy
3,022,728
+335,324
+12% +$15.9M 0.3% 83
2025
Q1 		$111M Buy
2,687,404
+730,704
+37% +$36.2M 0.24% 101
2024
Q4 		$86.4M Buy
1,956,700
+1,515,924
+344% +$63.8M 0.19% 124
2024
Q3 		$15.4M Buy
440,776
+204,568
+87% +$6.33M 0.03% 584
2024
Q2 		$7.24M Buy
+236,208
New +$7.05M 0.02% 839
2024
Q1 		– Sell
-191,200
Closed -$3.96M – 3178
2023
Q4 		$3.96M Buy
191,200
+112,000
+141% +$2.29M 0.01% 1115
2023
Q3 		$1.71M Hold
79,200
– – ﹤0.01% 1513
2023
Q2 		$1.64M Hold
79,200
– – ﹤0.01% 1592
2023
Q1 		$1.63M Sell
79,200
-134,712
-63% -$2.74M ﹤0.01% 1528
2022
Q4 		$3.87M Sell
213,912
-529,156
-71% -$9.88M 0.01% 976
2022
Q3 		$11.9M Buy
+743,068
New +$11.4M 0.04% 440
2014
Q4 		– Sell
-96,512
Closed -$602K – 2290
2014
Q3 		$602K Sell
96,512
-69,860
-42% -$416K ﹤0.01% 1233
2014
Q2 		$969K Sell
166,372
-117,424
-41% -$675K ﹤0.01% 1324
2014
Q1 		$1.54M Buy
283,796
+187,840
+196% +$1.04M 0.01% 1047
2013
Q4 		$583K Buy
+95,956
New +$536K ﹤0.01% 1603

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
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $32.2B AUM 10.98% 1-Year Est. Return

Two Sigma Investments's IBKR Position: Q2 2026 in Review

Two Sigma Investments increased its Interactive Brokers (IBKR) stake by 0.33% in Q2 2026, buying an estimated $2.28M and bringing the position to 8,340,400 shares worth $726M. The position accounts for 0.53% of the portfolio, ranked #24.

Two Sigma Investments first reported a position in IBKR in Q4 2013 and has held it in 19 quarters since. 1,108 funds tracked by Wall St. Rank hold IBKR as of Q2 2026.

  • Two Sigma Investments held 8,340,400 shares of Interactive Brokers worth $726M as of Q2 2026.
  • Two Sigma Investments bought 27,429 Interactive Brokers shares in Q2 2026, an estimated $2.28M.
  • Interactive Brokers made up 0.53% of Two Sigma Investments's portfolio in Q2 2026, its #24 holding.
  • Two Sigma Investments first reported a position in Interactive Brokers in Q4 2013 and has held it in 19 quarters since.
  • 1,108 funds tracked by Wall St. Rank held Interactive Brokers as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.