SIMPLEX TRADING, LLC
Q3 2026 13F Holdings
Location
Chicago, IL
Holdings as of
9/30/2026
Value
$184B
Value excl. options
$3.16B
Num holdings
9,112
Date filed
11/4/2026
Form type
13F-HR
Prev filing
8/12/2026
Next filing
SEC
View on sec.gov
Compare Q3 2026 to
2026 Q2
2026 Q1
2025 Q4
2025 Q3
2025 Q2
2025 Q1
2024 Q4
2024 Q3
2024 Q2
2024 Q1
2023 Q4
2023 Q3
2023 Q2
2023 Q1
2022 Q4
2022 Q3
2022 Q2
2022 Q1
2021 Q4 - RESTATEMENT
2021 Q3
2021 Q2
2021 Q1
2020 Q4
2020 Q3
2020 Q2
2020 Q1
2019 Q4
2019 Q3
2019 Q2
2019 Q1
2018 Q4
2018 Q3
2018 Q2
2018 Q1
2017 Q4
2017 Q3
2017 Q2
2017 Q1
2016 Q4
2016 Q3
2016 Q2
2016 Q1
2015 Q4
2015 Q3
2015 Q2
2015 Q1
2014 Q4
Sym
Issuer Name
Cl
CUSIP
Value ($000)
% Excl. Options
Shares
Principal
Option Type