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Simplex Trading, LLC

SEC CIK
0001488542
Latest filing
Aug 12, 2026

IBKR holding history

Interactive Brokers Group, Inc. in every 13F filed by Simplex Trading, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IBKR overviewAll 13F holders of IBKRFull Q2 2026 holdings

Shares (Q4 2025)
0
Sold out in Q4 2025
Value
$0
% of portfolio
0.0%
Quarters held
14
Since Q1 2021
Holdings of IBKR by Simplex Trading, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q4 20250$00.0%−12,841−100.0%Sold outHolders
Q3 202512,841$883.0K<0.1%+12,841NewHolders
Q2 20250$00.0%−22,264−100.0%Sold outConverted for a 4-for-1 splitHolders
Q1 20255,566$921.0K<0.1%+5,566NewHolders
Q3 20240$00.0%−7,417−100.0%Sold outHolders
Q2 20247,417$909.0K<0.1%−10,190−57.9%ReducedHolders
Q1 202417,607$1.97M0.1%−22,422−56.0%ReducedHolders
Q4 202340,029$3.32M0.1%+40,029NewHolders
Q2 20230$00.0%−3,600−100.0%Sold outHolders
Q1 20233,600$297.0K<0.1%−2,459−40.6%ReducedHolders
Q4 20226,059$438.0K<0.1%+2,569+73.6%AddedHolders
Q3 20223,490$223.0K<0.1%−6,296−64.3%ReducedHolders
Q2 20229,786$538.0K<0.1%+5,562+131.7%AddedHolders
Q1 20224,224$278.0K<0.1%+924+28.0%AddedHolders
Q4 20213,300$262.0K<0.1%−23,084−87.5%ReducedHolders
Q3 202126,384$1.75M0.1%−90.0%ReducedHolders
Q2 202126,393$1.73M0.1%+15,808+149.3%AddedHolders
Q1 202110,585$773.0K<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.