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SIMPLEX TRADING, LLC

CIK
1488542
City
CHICAGO
State / Country
IL

Top Portfolio Positions

1,974 positions · $2,800,875,563 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

25 quarters · across all stocks

Holdings in ASPN

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Shares Held

Position Value (USD)

18 quarters on record
Report Date Value (USD) Shares
2026-03-31 $8,119 2,374
2025-12-31 $13,674 4,832
2025-09-30 $113,106 16,251
2025-06-30 $6,233 1,053
2025-03-31 $45,241 7,080
2024-12-31 $43,552 3,666
2024-09-30 $733,258 26,481
2024-06-30 $810,279 33,974
2024-03-31 $75,451 4,287
2023-03-31 $399,215 53,586
2022-12-31 $199,475 16,919
2022-09-30 $159,035 17,249
2022-06-30 $14,740 1,492
2022-03-31 $1,206,731 34,998
2021-09-30 $532,243 11,568
2021-06-30 $346,084 11,567
2021-03-31 $608,247 29,904
2020-12-31 $142,048 8,511