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GROUP ONE TRADING LLC

CIK
932540
City
CHICAGO
State / Country
IL

Top Portfolio Positions

1,828 positions · $2,528,937,297 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

25 quarters · across all stocks

Holdings in ATYR

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Shares Held

Position Value (USD)

15 quarters on record
Report Date Value (USD) Shares
2026-03-31 $143,530 184,014
2025-12-31 $149,590 191,048
2025-09-30 $12,430 17,240
2025-06-30 $358,788 70,767
2025-03-31 $270,806 89,671
2024-12-31 $26,208 7,240
2022-09-30 $43,383 14,461
2022-06-30 $15,983 5,648
2021-09-30 $18,359 2,022
2021-06-30 $209 43
2021-03-31 $191 43
2020-12-31 $166 43
2020-09-30 $138 43
2020-06-30 $190 43
2020-03-31 $120 43